sqlserver
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plsql
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IF OBJECT_ID('get_employee_details', 'P') IS NOT NULL DROP PROCEDURE get_employee_details; GO CREATE PROCEDURE get_employee_details( @emp_id IN AS NUMBER, OUT emp_name VARCHAR2, OUT emp_salary NUMBER, OUT err_msg OUT VARCHAR2 ) AS BEGIN SELECT @emp_name = ename, @emp_salary = esal FROM emp WHERE empno = emp_id; set @err_msg = NULL; IF @@FETCH_STATUS <> 0 BEGIN set @err_msg = 'Employee not found'; END END; BEGIN dbo.get_employee_details(100, emp_name => :emp_name, emp_salary => :emp_salary, err_msg => :err_msg); IF :err_msg IS NOT NULL BEGIN RAISERROR(-20000, :err_msg, 16, 1); END END;
CREATE OR REPLACE PROCEDURE get_employee_details( emp_id IN NUMBER, OUT emp_name VARCHAR2, OUT emp_salary NUMBER, OUT err_msg OUT VARCHAR2 ) AS BEGIN SELECT ename, esal INTO emp_name, emp_salary FROM emp WHERE empno = emp_id; err_msg := NULL; EXCEPTION WHEN NO_DATA_FOUND THEN err_msg := 'Employee not found'; END; BEGIN get_employee_details(100, emp_name => :emp_name, emp_salary => :emp_salary, err_msg => :err_msg); IF :err_msg IS NOT NULL THEN RAISE_APPLICATION_ERROR(-20000, :err_msg); END IF; END;
CREATE PROCEDURE my_stored_procedure ( @in_param_1 IN AS VARCHAR2 ) AS BEGIN DBMS_OUTPUT.PUT_LINE('Input parameter: ' + isnull(in_param_1, '')); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('Error: ' + ISNULL(SQLERRM, '')); END my_stored_procedure;
CREATE PROCEDURE my_stored_procedure ( in_param_1 IN VARCHAR2 ) AS BEGIN DBMS_OUTPUT.PUT_LINE('Input parameter: ' || in_param_1); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('Error: ' || SQLERRM); END my_stored_procedure;
DECLARE @v_empno FLOAT; v_salary NUMBER; v_bonus NUMBER; BEGIN SET @v_empno = 1000; SELECT @v_salary = salary FROM emp WHERE empno = @v_empno; IF v_salary > 2000 BEGIN SET @v_bonus = v_salary * 0.1; END ELSE BEGIN SET @v_bonus = 0; END UPDATE emp SET bonus = v_bonus WHERE empno = @v_empno; COMMIT; EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('Error occurred: ' + ISNULL(SQLERRM, '')); END;
DECLARE v_empno NUMBER; v_salary NUMBER; v_bonus NUMBER; BEGIN v_empno := 1000; SELECT salary INTO v_salary FROM emp WHERE empno = v_empno; IF v_salary > 2000 THEN v_bonus := v_salary * 0.1; ELSE v_bonus := 0; END IF; UPDATE emp SET bonus = v_bonus WHERE empno = v_empno; COMMIT; EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('Error occurred: ' || SQLERRM); END;
DECLARE @v_empno FLOAT := 101; BEGIN -- Fe... SQLINES DEMO *** SELECT * FROM employees WHERE empno = @v_empno; END; *** ock BEGIN *** e employee record INSERT INTO employees (empno, ename) VALUES (@v_empno, 'New Employee'); *** ction COMMIT; EXCEPTION WHEN dup_val_on_index THEN -- Ha... SQLINES DEMO *** ROLLBACK; DBMS_OUTPUT.PUT_LINE('Duplicate employee record found.'); END; *** to get employee details IF OBJECT_ID('get_emp_details', 'P') IS NOT NULL DROP PROCEDURE get_emp_details; GO CREATE PROCEDURE get_emp_details ( @p_empno IN AS NUMBER, out_ename OUT VARCHAR2 ) IS BEGIN SELECT @out_ename = ename FROM employees WHERE empno = p_empno; END; *** cursor DECLARE c_emp CURSOR FOR SELECT * FROM employees; BEGIN *** cursor DECLARE r CURSOR FOR c_emp OPEN r; FETCH r INTO; WHILE @@FETCH_STATUS=0 BEGIN *** in the cursor DBMS_OUTPUT.PUT_LINE(isnull(@r_empno, '') + ', ' + isnull(@r_ename, '')); FETCH r INTO; END; CLOSE r; DEALLOCATE r; END;
DECLARE v_empno NUMBER := 101; BEGIN -- Fetch employee data SELECT * FROM employees WHERE empno = v_empno; END; -- Error handling block BEGIN -- Insert a duplicate employee record INSERT INTO employees (empno, ename) VALUES (v_empno, 'New Employee'); -- Commit the transaction COMMIT; EXCEPTION WHEN dup_val_on_index THEN -- Handle the error ROLLBACK; DBMS_OUTPUT.PUT_LINE('Duplicate employee record found.'); END; -- Stored procedure to get employee details CREATE OR REPLACE PROCEDURE get_emp_details ( p_empno IN NUMBER, out_ename OUT VARCHAR2 ) IS BEGIN SELECT ename INTO out_ename FROM employees WHERE empno = p_empno; END; -- Looping through a cursor DECLARE c_emp CURSOR FOR SELECT * FROM employees; BEGIN -- Loop through the cursor FOR r IN c_emp LOOP -- Process each row in the cursor DBMS_OUTPUT.PUT_LINE(r.empno || ', ' || r.ename); END LOOP; END;
declare @v_rowCount int; v_employee_id row_number(5); v_salary row_number(10); begin select @v_rowCount = count(*) from employees; dbms_output.put_line('Row count: ' + ISNULL(@v_rowCount, '')); select @v_employee_id = employee_id, @v_salary = salary from employees where last_name like 'J%'; dbms_output.put_line('Employee ID: ' + isnull(v_employee_id, '') + ', Salary: ' + isnull(v_salary, '')); set @v_salary= v_salary * 1.10; update employees set salary = v_salary where employee_id = v_employee_id; dbms_output.put_line('Salary updated for employee ID: ' + isnull(v_employee_id, '')); if @@fetch_status <> 0 begin dbms_output.put_line('No data found for the specified criteria.'); end when update_error then dbms_output.put_line('Error updating the employee's salary.'
declare v_rowCount number(5); v_employee_id number(5); v_salary number(10); begin select count(*) into v_rowCount from employees; dbms_output.put_line('Row count: ' || v_rowCount); select employee_id, salary into v_employee_id, v_salary from employees where last_name like 'J%'; dbms_output.put_line('Employee ID: ' || v_employee_id || ', Salary: ' || v_salary); v_salary:= v_salary * 1.10; update employees set salary = v_salary where employee_id = v_employee_id; dbms_output.put_line('Salary updated for employee ID: ' || v_employee_id); exception when no_data_found then dbms_output.put_line('No data found for the specified criteria.'); when update_error then dbms_output.put_line('Error updating the employee's salary.'); end;
IF OBJECT_ID('calculate_average', 'P') IS NOT NULL DROP PROCEDURE calculate_average; GO CREATE PROCEDURE calculate_average(@emp_id IN AS NUMBER, OUT average_salary OUT NUMBER) AS total_salary SET @NUMBER = 0; num_rows SET @NUMBER = 0; BEGIN SELECT @total_salary = SUM(salary) COUNT(*) INTO num_rows FROM employee WHERE manager_id = emp_id; set @average_salary = total_salary / num_rows; IF num_rows = 0 BEGIN RAISERROR('-20001 No employees found for this manager', 16, 1); END END; BEGIN DECLARE @emp_id FLOAT := 100; average_salary NUMBER; BEGIN dbo.calculate_average(@emp_id, average_salary); DBMS_OUTPUT.PUT_LINE('Average salary: ' + isnull(average_salary, '')); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No employees found for this manager'); END WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' + ISNULL(SQLERRM, '')); END; END;
CREATE OR REPLACE PROCEDURE calculate_average(emp_id IN NUMBER, OUT average_salary OUT NUMBER) AS total_salary NUMBER := 0; num_rows NUMBER := 0; BEGIN SELECT SUM(salary) INTO total_salary, COUNT(*) INTO num_rows FROM employee WHERE manager_id = emp_id; average_salary := total_salary / num_rows; IF num_rows = 0 THEN RAISE_APPLICATION_ERROR(-20001, 'No employees found for this manager'); END IF; END; BEGIN DECLARE emp_id NUMBER := 100; average_salary NUMBER; BEGIN calculate_average(emp_id, average_salary); DBMS_OUTPUT.PUT_LINE('Average salary: ' || average_salary); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No employees found for this manager'); WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' || SQLERRM); END; END;
CREATE PROCEDURE ProcessOrders ( @IN_OrderID IN AS NUMBER, OUT_Status OUT VARCHAR2, OUT_ErrorMessage OUT VARCHAR2 ) IS V_CurrentStatus dbo.VARCHAR2(20); BEGIN SELECT @V_CurrentStatus = Status FROM Orders WHERE OrderID = IN_OrderID; IF V_CurrentStatus = 'Pending' BEGIN UPDATE Orders SET Status = 'Processing' WHERE OrderID = IN_OrderID; SET @OUT_Status = 'Processing'; END ELSE IF V_CurrentStatus = 'Processing' BEGIN SET @OUT_Status = 'Processing'; END ELSE IF V_CurrentStatus = 'Shipped' BEGIN SET @OUT_Status = 'Shipped'; END ELSE BEGIN SET @OUT_Status = 'Error: Invalid OrderID'; SET @OUT_ErrorMessage = 'The specified OrderID is not valid.'; END IF @@FETCH_STATUS <> 0 BEGIN SET @OUT_Status = 'Error: OrderID not found'; SET @OUT_ErrorMessage = 'The specified OrderID does not exist in the database.'; END END;
CREATE PROCEDURE ProcessOrders ( IN_OrderID IN NUMBER, OUT_Status OUT VARCHAR2, OUT_ErrorMessage OUT VARCHAR2 ) IS V_CurrentStatus VARCHAR2(20); BEGIN SELECT Status INTO V_CurrentStatus FROM Orders WHERE OrderID = IN_OrderID; IF V_CurrentStatus = 'Pending' THEN UPDATE Orders SET Status = 'Processing' WHERE OrderID = IN_OrderID; OUT_Status := 'Processing'; ELSIF V_CurrentStatus = 'Processing' THEN OUT_Status := 'Processing'; ELSIF V_CurrentStatus = 'Shipped' THEN OUT_Status := 'Shipped'; ELSE OUT_Status := 'Error: Invalid OrderID'; OUT_ErrorMessage := 'The specified OrderID is not valid.'; END IF; EXCEPTION WHEN NO_DATA_FOUND THEN OUT_Status := 'Error: OrderID not found'; OUT_ErrorMessage := 'The specified OrderID does not exist in the database.'; END;
BEGIN DECLARE @lv_x INTEGER; BEGIN SELECT @lv_x = MAX(ID) FROM MY_TABLE; END; IF @lv_x IS NULL BEGIN SET @lv_x = 0; END SET @lv_x = @lv_x + 1; UPDATE MY_TABLE SET ID = @lv_x; END; /
BEGIN DECLARE lv_x INTEGER; BEGIN SELECT MAX(ID) INTO lv_x FROM MY_TABLE; END; IF lv_x IS NULL THEN lv_x := 0; END IF; lv_x := lv_x + 1; UPDATE MY_TABLE SET ID = lv_x; END; /
DECLARE @v_emp_id FLOAT; v_emp_name dbo.VARCHAR2(100); BEGIN SELECT @v_emp_id = emp_id, @v_emp_name = emp_name FROM employees WHERE emp_id = 10; IF @v_emp_id IS NULL BEGIN RAISERROR('-20001 Employee not found', 16, 1); END UPDATE employees SET emp_name = 'Updated Name' WHERE emp_id = @v_emp_id; COMMIT; DBMS_OUTPUT.PUT_LINE('Employee updated successfully.'); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred.'); RAISE; END;
DECLARE v_emp_id NUMBER; v_emp_name VARCHAR2(100); BEGIN SELECT emp_id, emp_name INTO v_emp_id, v_emp_name FROM employees WHERE emp_id = 10; IF v_emp_id IS NULL THEN RAISE_APPLICATION_ERROR(-20001, 'Employee not found'); END IF; UPDATE employees SET emp_name = 'Updated Name' WHERE emp_id = v_emp_id; COMMIT; DBMS_OUTPUT.PUT_LINE('Employee updated successfully.'); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred.'); RAISE; END;
IF OBJECT_ID('calc_total_price', 'FN') IS NOT NULL DROP FUNCTION calc_total_price; GO CREATE FUNCTION calc_total_price(@product_id FLOAT, @quantity FLOAT) RETURNS FLOAT AS BEGIN DECLARE @total_price FLOAT; SELECT @total_price = price * @quantity FROM products WHERE @product_id = @product_id; RETURN @total_price; END; IF OBJECT_ID('update_product_stock', 'P') IS NOT NULL DROP PROCEDURE update_product_stock; GO CREATE PROCEDURE update_product_stock(@product_id FLOAT, @quantity FLOAT) AS BEGIN SET NOCOUNT ON; UPDATE products SET stock = stock - @quantity WHERE @product_id = @product_id; END; DECLARE @product_id FLOAT := 1; quantity SET @NUMBER = 5; total_price NUMBER; BEGIN SET @total_price = dbo.calc_total_price(@product_id, quantity); IF total_price > 100 BEGIN RAISERROR('-20001 Order total exceeds $100', 16, 1); END ELSE BEGIN dbo.update_product_stock(@product_id, quantity); END END;
CREATE OR REPLACE FUNCTION calc_total_price(product_id NUMBER, quantity NUMBER) RETURN NUMBER IS total_price NUMBER; BEGIN SELECT price * quantity INTO total_price FROM products WHERE product_id = product_id; RETURN total_price; END; CREATE OR REPLACE PROCEDURE update_product_stock(product_id NUMBER, quantity NUMBER) IS BEGIN UPDATE products SET stock = stock - quantity WHERE product_id = product_id; END; DECLARE product_id NUMBER := 1; quantity NUMBER := 5; total_price NUMBER; BEGIN total_price := calc_total_price(product_id, quantity); IF total_price > 100 THEN RAISE_APPLICATION_ERROR(-20001, 'Order total exceeds $100'); ELSE update_product_stock(product_id, quantity); END IF; END;
IF OBJECT_ID('my_proc', 'P') IS NOT NULL DROP PROCEDURE my_proc; GO CREATE PROCEDURE my_proc ( @p_num IN AS NUMBER ) AS BEGIN *** iables l_var1 NUMBER; l_var2 dbo.VARCHAR2(100); -- Er... SQLINES DEMO *** IF p_num < 0 BEGIN RAISERROR('-20001 Invalid parameter value', 16, 1); END -- Co... SQLINES DEMO *** IF p_num > 0 BEGIN set @l_var1 = p_num * 2; END ELSE set @l_var1 = p_num / 2; END SELECT @l_var2 = name FROM my_table WHERE id = p_num; -- SQ... SQLINES DEMO *** UPDATE my_table SET name = l_var2 WHERE id = p_num; END;
CREATE OR REPLACE PROCEDURE my_proc ( p_num IN NUMBER ) AS BEGIN -- Declare local variables l_var1 NUMBER; l_var2 VARCHAR2(100); -- Error handling IF p_num < 0 THEN RAISE_APPLICATION_ERROR(-20001, 'Invalid parameter value'); END IF; -- Control flow CASE WHEN p_num > 0 THEN l_var1 := p_num * 2; ELSE l_var1 := p_num / 2; END CASE; SELECT name INTO l_var2 FROM my_table WHERE id = p_num; -- SQL statement UPDATE my_table SET name = l_var2 WHERE id = p_num; END;
BEGIN DECLARE @emp_id FLOAT; emp_salary NUMBER; BEGIN SELECT @emp_id = employee_id, @emp_salary = salary FROM employees WHERE last_name = 'King'; IF @emp_id IS NULL BEGIN RAISERROR('-20001 Employee not found', 16, 1); END ELSE IF emp_salary > 10000 BEGIN UPDATE employees SET salary = salary * 1.10 WHERE employee_id = @emp_id; END IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No employee with that last name found.'); END WHEN TOO_MANY_ROWS THEN DBMS_OUTPUT.PUT_LINE('More than one employee with that last name found.'); END; END;
BEGIN DECLARE emp_id NUMBER; emp_salary NUMBER; BEGIN SELECT employee_id, salary INTO emp_id, emp_salary FROM employees WHERE last_name = 'King'; IF emp_id IS NULL THEN RAISE_APPLICATION_ERROR(-20001, 'Employee not found'); ELSIF emp_salary > 10000 THEN UPDATE employees SET salary = salary * 1.10 WHERE employee_id = emp_id; END IF; EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No employee with that last name found.'); WHEN TOO_MANY_ROWS THEN DBMS_OUTPUT.PUT_LINE('More than one employee with that last name found.'); END; END;
DECLARE @v_empno FLOAT; v_ename dbo.VARCHAR2(20); v_job dbo.VARCHAR2(20); v_mgr NUMBER; v_sal NUMBER; v_comm NUMBER; v_deptno NUMBER; v_max_sal NUMBER; BEGIN SELECT @v_empno = empno, @v_ename = ename, @v_job = job, @v_mgr = mgr, @v_sal = sal, @v_comm = comm, @v_deptno = deptno FROM emp WHERE empno = :employee_id; IF FOUND BEGIN UPDATE emp SET ename = :new_ename WHERE empno = :employee_id; SET @v_max_sal = ( SELECT MAX(sal) FROM emp WHERE deptno = v_deptno ); IF v_sal > v_max_sal BEGIN RAISERROR('-20001 Salary too high', 16, 1); END COMMIT; END ELSE BEGIN RAISERROR('-20002 Employee not found', 16, 1); END END;
DECLARE v_empno NUMBER; v_ename VARCHAR2(20); v_job VARCHAR2(20); v_mgr NUMBER; v_sal NUMBER; v_comm NUMBER; v_deptno NUMBER; v_max_sal NUMBER; BEGIN SELECT empno, ename, job, mgr, sal, comm, deptno INTO v_empno, v_ename, v_job, v_mgr, v_sal, v_comm, v_deptno FROM emp WHERE empno = :employee_id; IF FOUND THEN UPDATE emp SET ename = :new_ename WHERE empno = :employee_id; v_max_sal := ( SELECT MAX(sal) FROM emp WHERE deptno = v_deptno ); IF v_sal > v_max_sal THEN RAISE_APPLICATION_ERROR(-20001, 'Salary too high'); END IF; COMMIT; ELSE RAISE_APPLICATION_ERROR(-20002, 'Employee not found'); END IF; END;
BEGIN DECLARE @v_name VARCHAR(50); v_age NUMBER; BEGIN SELECT @v_name = name, @v_age = age FROM employees WHERE id = 1; IF v_age < 18 BEGIN RAISERROR('-20001 Age must be 18 or older', 16, 1); END *** rations IF @@FETCH_STATUS <> 0 BEGIN RAISERROR('-20002 No employee found with id 1', 16, 1); END WHEN TOO_MANY_ROWS THEN RAISERROR('-20003 Multiple employees found with id 1', 16, 1); END; END;
BEGIN DECLARE v_name VARCHAR2(50); v_age NUMBER; BEGIN SELECT name, age INTO v_name, v_age FROM employees WHERE id = 1; IF v_age < 18 THEN RAISE_APPLICATION_ERROR(-20001, 'Age must be 18 or older'); END IF; -- Perform other operations EXCEPTION WHEN NO_DATA_FOUND THEN RAISE_APPLICATION_ERROR(-20002, 'No employee found with id 1'); WHEN TOO_MANY_ROWS THEN RAISE_APPLICATION_ERROR(-20003, 'Multiple employees found with id 1'); END; END;
DECLARE @v_dept_id FLOAT; BEGIN SELECT @v_dept_id = deptno FROM dept WHERE dname = 'Sales'; IF @v_dept_id IS NOT NULL BEGIN DBMS_OUTPUT.PUT_LINE('Sales department exists.'); END ELSE BEGIN DBMS_OUTPUT.PUT_LINE('Sales department does not exist.'); END IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No department found with the specified name.'); END END;
DECLARE v_dept_id NUMBER; BEGIN SELECT deptno INTO v_dept_id FROM dept WHERE dname = 'Sales'; IF v_dept_id IS NOT NULL THEN DBMS_OUTPUT.PUT_LINE('Sales department exists.'); ELSE DBMS_OUTPUT.PUT_LINE('Sales department does not exist.'); END IF; EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No department found with the specified name.'); END;
IF OBJECT_ID('calculate_salary', 'FN') IS NOT NULL DROP FUNCTION calculate_salary; GO CREATE FUNCTION calculate_salary(@employee_id FLOAT) RETURNS FLOAT AS BEGIN DECLARE @salary FLOAT; SELECT @salary = @salary FROM employees WHERE @employee_id = @employee_id; IF @salary IS NULL BEGIN RAISERROR('-20000 Invalid employee ID', 16, 1); END RETURN @salary * 1.10; END; GO DECLARE @employee_id FLOAT := 100; salary NUMBER; BEGIN SET @salary = dbo.calculate_salary(@employee_id); DBMS_OUTPUT.PUT_LINE('Salary for employee ' + isnull(@employee_id, '') + ': ' + isnull(salary, '')); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' + ISNULL(SQLERRM, '')); END; /
CREATE OR REPLACE FUNCTION calculate_salary(employee_id NUMBER) RETURN NUMBER IS salary NUMBER; BEGIN SELECT salary INTO salary FROM employees WHERE employee_id = employee_id; IF salary IS NULL THEN RAISE_APPLICATION_ERROR(-20000, 'Invalid employee ID'); END IF; RETURN salary * 1.10; END; / DECLARE employee_id NUMBER := 100; salary NUMBER; BEGIN salary := calculate_salary(employee_id); DBMS_OUTPUT.PUT_LINE('Salary for employee ' || employee_id || ': ' || salary); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' || SQLERRM); END; /
IF OBJECT_ID('calculate_order_total', 'P') IS NOT NULL DROP PROCEDURE calculate_order_total; GO CREATE PROCEDURE calculate_order_total(@order_id IN AS NUMBER) AS v_order_total NUMBER; BEGIN SELECT @v_order_total = SUM(quantity * unit_price) FROM order_details WHERE order_id = order_id; IF v_order_total IS NULL BEGIN RAISERROR('-20001 Invalid order ID', 16, 1); END UPDATE orders SET total_amount = v_order_total WHERE order_id = order_id; END; /
CREATE OR REPLACE PROCEDURE calculate_order_total(order_id IN NUMBER) AS v_order_total NUMBER; BEGIN SELECT SUM(quantity * unit_price) INTO v_order_total FROM order_details WHERE order_id = order_id; IF v_order_total IS NULL THEN RAISE_APPLICATION_ERROR(-20001, 'Invalid order ID'); END IF; UPDATE orders SET total_amount = v_order_total WHERE order_id = order_id; END; /
CREATE PROCEDURE Emp_Bonus(@emp_id IN AS NUMBER) AS BEGIN UPDATE Employees SET Salary = Salary * 1.10 WHERE EmployeeID = emp_id; COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
CREATE PROCEDURE Emp_Bonus(emp_id IN NUMBER) AS BEGIN UPDATE Employees SET Salary = Salary * 1.10 WHERE EmployeeID = emp_id; COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
IF OBJECT_ID('usp_UpdateEmployeeInfo', 'P') IS NOT NULL DROP PROCEDURE usp_UpdateEmployeeInfo; GO CREATE PROCEDURE usp_UpdateEmployeeInfo ( @p_employee_id IN AS NUMBER, p_name IN VARCHAR2, p_salary IN NUMBER, p_department_id IN NUMBER, p_error_code OUT NUMBER, p_error_message OUT VARCHAR2 ) AS BEGIN *** ee information UPDATE employees SET name = p_name, salary = p_salary, department_id = p_department_id WHERE employee_id = p_employee_id; *** te was successful IF @@ROWCOUNT = 0 BEGIN -- Up... SQLINES DEMO *** set @p_error_code = -1; set @p_error_message = 'Employee not found'; END ELSE BEGIN -- Up... SQLINES DEMO *** set @p_error_code = 0; set @p_error_message = NULL; END -- Co... SQLINES DEMO *** COMMIT; END usp_UpdateEmployeeInfo;
CREATE OR REPLACE PROCEDURE usp_UpdateEmployeeInfo ( p_employee_id IN NUMBER, p_name IN VARCHAR2, p_salary IN NUMBER, p_department_id IN NUMBER, p_error_code OUT NUMBER, p_error_message OUT VARCHAR2 ) AS BEGIN -- Update the employee information UPDATE employees SET name = p_name, salary = p_salary, department_id = p_department_id WHERE employee_id = p_employee_id; -- Check if the update was successful IF SQL%ROWCOUNT = 0 THEN -- Update failed p_error_code := -1; p_error_message := 'Employee not found'; ELSE -- Update successful p_error_code := 0; p_error_message := NULL; END IF; -- Commit the changes COMMIT; END usp_UpdateEmployeeInfo;
DECLARE @l_num_rows FLOAT; BEGIN SELECT @l_num_rows = COUNT(*) FROM emp; IF @l_num_rows = 0 BEGIN RAISERROR('-20001 No rows found in emp table', 16, 1); END UPDATE emp SET sal = sal * 1.10 WHERE deptno = 20; COMMIT; DBMS_OUTPUT.PUT_LINE('Salaries increased for department 20.'); EXCEPTION WHEN OTHERS THEN ROLLBACK; DBMS_OUTPUT.PUT_LINE('An error occurred. Salaries were not increased.'); END;
DECLARE l_num_rows NUMBER; BEGIN SELECT COUNT(*) INTO l_num_rows FROM emp; IF l_num_rows = 0 THEN RAISE_APPLICATION_ERROR(-20001, 'No rows found in emp table'); END IF; UPDATE emp SET sal = sal * 1.10 WHERE deptno = 20; COMMIT; DBMS_OUTPUT.PUT_LINE('Salaries increased for department 20.'); EXCEPTION WHEN OTHERS THEN ROLLBACK; DBMS_OUTPUT.PUT_LINE('An error occurred. Salaries were not increased.'); END;
CREATE TABLE employee ( id FLOAT PRIMARY KEY, name VARCHAR(100) NOT NULL, salary FLOAT, department VARCHAR(100) ); INSERT INTO employee (id, name, salary, department) VALUES (1, 'John Doe', 10000, 'Sales'); INSERT INTO employee (id, name, salary, department) VALUES (2, 'Jane Smith', 12000, 'Marketing'); INSERT INTO employee (id, name, salary, department) VALUES (3, 'David Jones', 15000, 'Engineering'); CREATE FUNCTION get_employee_salary(@id FLOAT) RETURNS FLOAT AS BEGIN SELECT @result = salary FROM employee WHERE @id = @id; RETURN result; IF @@FETCH_STATUS <> 0 BEGIN RETURN NULL; END END; DECLARE @emp_salary FLOAT; BEGIN SET @emp_salary = dbo.get_employee_salary(1); DBMS_OUTPUT.PUT_LINE('Salary for employee 1: ' + isnull(@emp_salary, '')); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('Error occurred while getting employee salary: ' + ISNULL(SQLERRM, '')); END;
CREATE TABLE employee ( id NUMBER PRIMARY KEY, name VARCHAR2(100) NOT NULL, salary NUMBER, department VARCHAR2(100) ); INSERT INTO employee (id, name, salary, department) VALUES (1, 'John Doe', 10000, 'Sales'); INSERT INTO employee (id, name, salary, department) VALUES (2, 'Jane Smith', 12000, 'Marketing'); INSERT INTO employee (id, name, salary, department) VALUES (3, 'David Jones', 15000, 'Engineering'); CREATE FUNCTION get_employee_salary(id NUMBER) RETURN NUMBER DETERMINISTIC AS BEGIN SELECT salary INTO result FROM employee WHERE id = id; RETURN result; EXCEPTION WHEN NO_DATA_FOUND THEN RETURN NULL; END; DECLARE emp_salary NUMBER; BEGIN emp_salary := get_employee_salary(1); DBMS_OUTPUT.PUT_LINE('Salary for employee 1: ' || emp_salary); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('Error occurred while getting employee salary: ' || SQLERRM); END;
DECLARE @v_emp_id INT; BEGIN SELECT @v_emp_id = emp_id FROM employees WHERE last_name = 'Scott'; IF @v_emp_id IS NULL BEGIN RAISERROR('-20001 Employee not found', 16, 1); END UPDATE employees SET salary = salary * 1.10 WHERE emp_id = @v_emp_id; COMMIT; IF @@FETCH_STATUS <> 0 BEGIN RAISERROR('-20002 No data found', 16, 1); END WHEN TOO_MANY_ROWS THEN RAISERROR('-20003 Too many rows returned', 16, 1); WHEN OTHERS THEN RAISE; END;
DECLARE v_emp_id NUMBER(6); BEGIN SELECT emp_id INTO v_emp_id FROM employees WHERE last_name = 'Scott'; IF v_emp_id IS NULL THEN RAISE_APPLICATION_ERROR(-20001, 'Employee not found'); END IF; UPDATE employees SET salary = salary * 1.10 WHERE emp_id = v_emp_id; COMMIT; EXCEPTION WHEN NO_DATA_FOUND THEN RAISE_APPLICATION_ERROR(-20002, 'No data found'); WHEN TOO_MANY_ROWS THEN RAISE_APPLICATION_ERROR(-20003, 'Too many rows returned'); WHEN OTHERS THEN RAISE; END;
CREATE FUNCTION get_employee_salary(@employee_id FLOAT) RETURNS FLOAT AS BEGIN DECLARE @salary FLOAT; SELECT @salary = @salary FROM employees WHERE @employee_id = @employee_id; RETURN @salary; IF @@FETCH_STATUS <> 0 BEGIN RETURN NULL; END END; BEGIN DECLARE @bonus FLOAT := 1000; BEGIN SET @bonus = @bonus * 2; EXCEPTION WHEN TOO_MANY_ROWS THEN RAISERROR('-20001 Too many rows returned.', 16, 1); END; DBMS_OUTPUT.PUT_LINE('Bonus: ' + isnull(@bonus, '')); END; WHILE 1=1 BEGIN EXIT WHEN employees.employee_id IS NULL; UPDATE employees SET salary = salary + 100 WHERE employee_id = employees.employee_id; FETCH employees INTO @employees; END;
CREATE FUNCTION get_employee_salary(employee_id NUMBER) RETURN NUMBER AS salary NUMBER; BEGIN SELECT salary INTO salary FROM employees WHERE employee_id = employee_id; RETURN salary; EXCEPTION WHEN NO_DATA_FOUND THEN RETURN NULL; END; BEGIN DECLARE bonus NUMBER := 1000; BEGIN bonus := bonus * 2; EXCEPTION WHEN TOO_MANY_ROWS THEN RAISE_APPLICATION_ERROR(-20001, 'Too many rows returned.'); END; DBMS_OUTPUT.PUT_LINE('Bonus: ' || bonus); END; LOOP EXIT WHEN employees.employee_id IS NULL; UPDATE employees SET salary = salary + 100 WHERE employee_id = employees.employee_id; FETCH employees INTO employees; END LOOP;
DECLARE @v_dept_id FLOAT; v_dept_name dbo.VARCHAR2(20); BEGIN SET @v_dept_id = 10; SELECT @v_dept_name = dname FROM dept WHERE deptno = @v_dept_id; IF v_dept_name IS NOT NULL BEGIN DBMS_OUTPUT.PUT_LINE('Department Name: ' + isnull(v_dept_name, '')); END ELSE BEGIN DBMS_OUTPUT.PUT_LINE('Department does not exist'); END IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No data found for the given department ID'); END END; /
DECLARE v_dept_id NUMBER; v_dept_name VARCHAR2(20); BEGIN v_dept_id := 10; SELECT dname INTO v_dept_name FROM dept WHERE deptno = v_dept_id; IF v_dept_name IS NOT NULL THEN DBMS_OUTPUT.PUT_LINE('Department Name: ' || v_dept_name); ELSE DBMS_OUTPUT.PUT_LINE('Department does not exist'); END IF; EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No data found for the given department ID'); END; /
DECLARE @v_empno FLOAT; BEGIN SET @v_empno = 7788; BEGIN UPDATE emp SET sal = sal * 1.10 WHERE empno = @v_empno; COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISERROR('-20001 Employee not found', 16, 1); END; END; IF OBJECT_ID('get_employee_name', 'FN') IS NOT NULL DROP FUNCTION get_employee_name; GO CREATE FUNCTION get_employee_name (@p_empno IN NUMBERDECLARE ) RETURN BEGIN VARCHAR2 RETURN NULL; END; IS v_name dbo.VARCHAR2(50); BEGIN SELECT @v_name = ename FROM emp WHERE empno = p_empno; RETURN v_name; IF @@FETCH_STATUS <> 0 BEGIN RETURN NULL; END END;
DECLARE v_empno NUMBER; BEGIN v_empno := 7788; BEGIN UPDATE emp SET sal = sal * 1.10 WHERE empno = v_empno; COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE_APPLICATION_ERROR(-20001, 'Employee not found'); END; END; CREATE OR REPLACE FUNCTION get_employee_name (p_empno IN NUMBER) RETURN VARCHAR2 IS v_name VARCHAR2(50); BEGIN SELECT ename INTO v_name FROM emp WHERE empno = p_empno; RETURN v_name; EXCEPTION WHEN NO_DATA_FOUND THEN RETURN NULL; END;
IF OBJECT_ID('GetCustomerInfo', 'P') IS NOT NULL DROP PROCEDURE GetCustomerInfo; GO CREATE PROCEDURE GetCustomerInfo(@cust_id IN AS NUMBER) IS cust_name dbo.VARCHAR2(50); BEGIN SELECT @cust_name = name FROM customer WHERE id = cust_id; IF cust_name IS NULL BEGIN RAISERROR('-20001 Customer not found', 16, 1); END DBMS_OUTPUT.PUT_LINE('Customer name: ' + isnull(cust_name, '')); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No data found for customer with id: ' + isnull(cust_id, '')); END WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' + ISNULL(SQLERRM, '')); END GetCustomerInfo;
CREATE OR REPLACE PROCEDURE GetCustomerInfo(cust_id IN NUMBER) IS cust_name VARCHAR2(50); BEGIN SELECT name INTO cust_name FROM customer WHERE id = cust_id; IF cust_name IS NULL THEN RAISE_APPLICATION_ERROR(-20001, 'Customer not found'); END IF; DBMS_OUTPUT.PUT_LINE('Customer name: ' || cust_name); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No data found for customer with id: ' || cust_id); WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' || SQLERRM); END GetCustomerInfo;
CREATE PROCEDURE update_employee ( @employee_id IN AS NUMBER, new_salary IN NUMBER ) AS BEGIN UPDATE employees SET salary = new_salary WHERE employee_id = employee_id; EXCEPTION WHEN OTHERS THEN RAISERROR('-20000 Error updating employee salary', 16, 1); END;
CREATE PROCEDURE update_employee ( employee_id IN NUMBER, new_salary IN NUMBER ) AS BEGIN UPDATE employees SET salary = new_salary WHERE employee_id = employee_id; EXCEPTION WHEN OTHERS THEN RAISE_APPLICATION_ERROR(-20000, 'Error updating employee salary'); END;
CREATE PROCEDURE get_employee_salaries AS emp_ref_cursor SYS_REFCURSOR; BEGIN SELECT employee_id, salary FROM employees; RETURN emp_ref_cursor; END;
CREATE PROCEDURE get_employee_salaries AS emp_ref_cursor SYS_REFCURSOR; BEGIN OPEN emp_ref_cursor FOR SELECT employee_id, salary FROM employees; RETURN emp_ref_cursor; END;
BEGIN DECLARE @num_rows FLOAT; BEGIN *** into a table INSERT INTO employees (employee_id, last_name, email) VALUES (1, 'Jones', 'jones@example.com'); -- Co... SQLINES DEMO *** COMMIT; EXCEPTION WHEN OTHERS THEN *** ges if an error occurs ROLLBACK; RAISE; END; *** rows in the table SELECT @num_rows = COUNT(*) FROM employees; *** r of rows DBMS_OUTPUT.PUT_LINE('Number of rows: ' + isnull(@num_rows, '')); END;
BEGIN DECLARE num_rows NUMBER; BEGIN -- Insert some data into a table INSERT INTO employees (employee_id, last_name, email) VALUES (1, 'Jones', 'jones@example.com'); -- Commit the changes COMMIT; EXCEPTION WHEN OTHERS THEN -- Rollback any changes if an error occurs ROLLBACK; RAISE; END; -- Get the number of rows in the table SELECT COUNT(*) INTO num_rows FROM employees; -- Display the number of rows DBMS_OUTPUT.PUT_LINE('Number of rows: ' || num_rows); END;
DECLARE @v_deptno FLOAT; BEGIN SELECT @v_deptno = deptno FROM dept WHERE dname = 'Sales'; IF @v_deptno IS NULL BEGIN RAISERROR('-20001 Department not found', 16, 1); END ELSE BEGIN UPDATE emp SET deptno = @v_deptno WHERE empno = 7369; END END; /
DECLARE v_deptno NUMBER; BEGIN SELECT deptno INTO v_deptno FROM dept WHERE dname = 'Sales'; IF v_deptno IS NULL THEN RAISE_APPLICATION_ERROR(-20001, 'Department not found'); ELSE UPDATE emp SET deptno = v_deptno WHERE empno = 7369; END IF; END; /
DECLARE @v_sal DECIMAL(10, 2); BEGIN SELECT @v_sal = salary FROM employees WHERE last_name = 'King'; IF @v_sal > 10000 BEGIN UPDATE employees SET salary = salary * 1.10 WHERE last_name = 'King'; END ELSE BEGIN RAISERROR('-20001 Salary is too low to give raise', 16, 1); END END;
DECLARE v_sal NUMBER(10, 2); BEGIN SELECT salary INTO v_sal FROM employees WHERE last_name = 'King'; IF v_sal > 10000 THEN UPDATE employees SET salary = salary * 1.10 WHERE last_name = 'King'; ELSE RAISE_APPLICATION_ERROR(-20001, 'Salary is too low to give raise'); END IF; END;
if dbo.obj_exists('procedure', 'pr_update_employee') begin dbms_output.put_line('Procedure exists!'); drop procedure pr_update_employee; end create procedure pr_update_employee( @p_employee_id in as number, p_first_name in varchar2, p_salary in number ) as update employees set first_name = p_first_name, salary = p_salary where employee_id = p_employee_id; / execute dbo.pr_update_employee(100, 'John', 50000); commit;
if obj_exists('procedure', 'pr_update_employee') then dbms_output.put_line('Procedure exists!'); drop procedure pr_update_employee; end if; create procedure pr_update_employee( p_employee_id in number, p_first_name in varchar2, p_salary in number ) as update employees set first_name = p_first_name, salary = p_salary where employee_id = p_employee_id; / execute pr_update_employee(100, 'John', 50000); commit;
BEGIN DECLARE @employee_id FLOAT; salary NUMBER; BEGIN SELECT @employee_id = @employee_id, @salary = salary FROM employees WHERE employee_name = 'John Doe'; IF salary < 50000 BEGIN RAISERROR('-20001 Salary too low', 16, 1); END IF @@FETCH_STATUS <> 0 BEGIN RAISERROR('-20002 Employee not found', 16, 1); END END; END;
BEGIN DECLARE employee_id NUMBER; salary NUMBER; BEGIN SELECT employee_id, salary INTO employee_id, salary FROM employees WHERE employee_name = 'John Doe'; IF salary < 50000 THEN RAISE_APPLICATION_ERROR(-20001, 'Salary too low'); END IF; EXCEPTION WHEN NO_DATA_FOUND THEN RAISE_APPLICATION_ERROR(-20002, 'Employee not found'); END; END;
IF OBJECT_ID('emp_salary_raise', 'P') IS NOT NULL DROP PROCEDURE emp_salary_raise; GO CREATE PROCEDURE emp_salary_raise(@emp_id IN AS NUMBER, raise_amt IN NUMBER) AS new_salary NUMBER; BEGIN SELECT @new_salary = salary FROM employees WHERE employee_id = emp_id; UPDATE employees SET salary = new_salary + raise_amt WHERE employee_id = emp_id; COMMIT; END; IF OBJECT_ID('get_employee_name', 'FN') IS NOT NULL DROP FUNCTION get_employee_name; GO CREATE FUNCTION get_employee_name(@emp_id IN NUMBERDECLARE ) RETURN BEGIN VARCHAR2 RETURN NULL; END; AS emp_name dbo.VARCHAR2(50); BEGIN SELECT @emp_name = isnull(first_name, '') + ' ' + isnull(last_name, '') FROM employees WHERE employee_id = emp_id; RETURN emp_name; END; DECLARE @total_salary FLOAT; dept_id SET @NUMBER = 20; BEGIN SELECT @total_salary = SUM(salary) FROM employees WHERE department_id = dept_id; IF @total_salary > 100000 BEGIN RAISERROR('-20001 Total salary exceeds budget', 16, 1); END EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' + ISNULL(SQLERRM, '')); END;
CREATE OR REPLACE PROCEDURE emp_salary_raise(emp_id IN NUMBER, raise_amt IN NUMBER) AS new_salary NUMBER; BEGIN SELECT salary INTO new_salary FROM employees WHERE employee_id = emp_id; UPDATE employees SET salary = new_salary + raise_amt WHERE employee_id = emp_id; COMMIT; END; CREATE OR REPLACE FUNCTION get_employee_name(emp_id IN NUMBER) RETURN VARCHAR2 AS emp_name VARCHAR2(50); BEGIN SELECT first_name || ' ' || last_name INTO emp_name FROM employees WHERE employee_id = emp_id; RETURN emp_name; END; DECLARE total_salary NUMBER; dept_id NUMBER := 20; BEGIN SELECT SUM(salary) INTO total_salary FROM employees WHERE department_id = dept_id; IF total_salary > 100000 THEN RAISE_APPLICATION_ERROR(-20001, 'Total salary exceeds budget'); END IF; EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' || SQLERRM); END;
CREATE PROCEDURE SayHello(@name IN AS VARCHAR2) IS BEGIN DBMS_OUTPUT.PUT_LINE('Hello, ' + isnull(name, '')); END SayHello;
PROCEDURE SayHello(name IN VARCHAR2) IS BEGIN DBMS_OUTPUT.PUT_LINE('Hello, ' || name); END SayHello;
CREATE PROCEDURE Test_Emp(@p_Empid IN AS NUMBER) AS BEGIN SELECT * FROM Employees WHERE Empid = p_Empid; IF @@FETCH_STATUS <> 0 BEGIN RAISERROR('-20001 Employee not found', 16, 1); END END;
CREATE PROCEDURE Test_Emp(p_Empid IN NUMBER) AS BEGIN SELECT * FROM Employees WHERE Empid = p_Empid; EXCEPTION WHEN NO_DATA_FOUND THEN RAISE_APPLICATION_ERROR(-20001, 'Employee not found'); END;
CREATE TABLE T1 (ID FLOAT, NAME VARCHAR(20), SALARY FLOAT); INSERT INTO T1 VALUES (1, 'John', 1000); INSERT INTO T1 VALUES (2, 'Mary', 2000); -- St... SQLINES DEMO *** IF OBJECT_ID('GET_SALARY', 'P') IS NOT NULL DROP PROCEDURE GET_SALARY; GO CREATE PROCEDURE GET_SALARY (@emp_id IN AS NUMBER, OUT salary OUT NUMBER) IS BEGIN SELECT @salary = SALARY FROM T1 WHERE ID = emp_id; END; / *** dure DECLARE @emp_id FLOAT := 1; salary NUMBER; BEGIN dbo.GET_SALARY(@emp_id, salary); END; -- Fu... SQLINES DEMO *** IF OBJECT_ID('GET_BONUS', 'FN') IS NOT NULL DROP FUNCTION GET_BONUS; GO CREATE FUNCTION GET_BONUS (@emp_id IN NUMBERDECLARE ) RETURN BEGIN NUMBER RETURN NULL; END; IS BEGIN RETURN SALARY * 0.1; END; / -- Ca... SQLINES DEMO *** DECLARE @emp_id FLOAT := 1; bonus NUMBER; BEGIN SET @bonus = dbo.GET_BONUS(@emp_id); END; *** tructs IF salary > 1500 BEGIN SET @bonus = salary * 0.2; END ELSE IF salary > 1000 BEGIN SET @bonus = salary * 0.1; END ELSE BEGIN SET @bonus = 0; END *** enarios BEGIN DELETE FROM T1 WHERE ID = 3; IF @@FETCH_STATUS <> 0 BEGIN NULL; END -- Ig... SQLINES DEMO *** END;
CREATE TABLE T1 (ID NUMBER, NAME VARCHAR2(20), SALARY NUMBER); INSERT INTO T1 VALUES (1, 'John', 1000); INSERT INTO T1 VALUES (2, 'Mary', 2000); -- Stored procedure CREATE OR REPLACE PROCEDURE GET_SALARY (emp_id IN NUMBER, OUT salary OUT NUMBER) IS BEGIN SELECT SALARY INTO salary FROM T1 WHERE ID = emp_id; END; / -- Call stored procedure DECLARE emp_id NUMBER := 1; salary NUMBER; BEGIN GET_SALARY(emp_id, salary); END; -- Function CREATE OR REPLACE FUNCTION GET_BONUS (emp_id IN NUMBER) RETURN NUMBER IS BEGIN RETURN SALARY * 0.1; END; / -- Call function DECLARE emp_id NUMBER := 1; bonus NUMBER; BEGIN bonus := GET_BONUS(emp_id); END; -- Control flow constructs IF salary > 1500 THEN bonus := salary * 0.2; ELSIF salary > 1000 THEN bonus := salary * 0.1; ELSE bonus := 0; END IF; -- Error handling scenarios BEGIN DELETE FROM T1 WHERE ID = 3; EXCEPTION WHEN NO_DATA_FOUND THEN NULL; -- Ignore the error END;
IF OBJECT_ID('add_employee', 'P') IS NOT NULL DROP PROCEDURE add_employee; GO CREATE PROCEDURE add_employee( @first_name IN AS VARCHAR2, last_name IN VARCHAR2, email IN VARCHAR2 ) AS BEGIN INSERT INTO employees (first_name, last_name, email) VALUES (first_name, last_name, email); COMMIT; END; / DECLARE @emp_id FLOAT; BEGIN SELECT @emp_id = employee_id FROM employees WHERE email = 'john.doe@example.com'; IF @emp_id IS NULL BEGIN RAISERROR('-20001 Employee not found', 16, 1); END UPDATE employees SET last_name = 'Smith' WHERE employee_id = @emp_id; COMMIT; END; /
CREATE OR REPLACE PROCEDURE add_employee( first_name IN VARCHAR2, last_name IN VARCHAR2, email IN VARCHAR2 ) AS BEGIN INSERT INTO employees (first_name, last_name, email) VALUES (first_name, last_name, email); COMMIT; END; / DECLARE emp_id NUMBER; BEGIN SELECT employee_id INTO emp_id FROM employees WHERE email = 'john.doe@example.com'; IF emp_id IS NULL THEN RAISE_APPLICATION_ERROR(-20001, 'Employee not found'); END IF; UPDATE employees SET last_name = 'Smith' WHERE employee_id = emp_id; COMMIT; END; /
IF OBJECT_ID('get_employee_info', 'P') IS NOT NULL DROP PROCEDURE get_employee_info; GO CREATE PROCEDURE get_employee_info(@emp_id IN AS NUMBER) AS BEGIN *** to store employee information emp_name dbo.VARCHAR2(100); salary ROW_NUMBER(10,2); hire_date DATE; *** e to get employee information SELECT @emp_name = name, @salary = salary, @hire_date = hire_date FROM employees WHERE emp_id = emp_id; *** ee information DBMS_OUTPUT.put_line('Employee Name: ' + isnull(emp_name, '')); DBMS_OUTPUT.put_line('Salary: ' + isnull(salary, '')); DBMS_OUTPUT.put_line('Hire Date: ' + isnull(hire_date, '')); END get_employee_info;
CREATE OR REPLACE PROCEDURE get_employee_info(emp_id IN NUMBER) AS BEGIN -- Declare variables to store employee information emp_name VARCHAR2(100); salary NUMBER(10,2); hire_date DATE; -- Query the database to get employee information SELECT name, salary, hire_date INTO emp_name, salary, hire_date FROM employees WHERE emp_id = emp_id; -- Output the employee information DBMS_OUTPUT.put_line('Employee Name: ' || emp_name); DBMS_OUTPUT.put_line('Salary: ' || salary); DBMS_OUTPUT.put_line('Hire Date: ' || hire_date); END get_employee_info;
DECLARE @salary FLOAT; BEGIN SET @salary = 5000; IF @salary > 1000 BEGIN DBMS_OUTPUT.PUT_LINE('Salary is good'); END ELSE BEGIN DBMS_OUTPUT.PUT_LINE('Salary is low'); END DECLARE @i INT = 1; WHILE @i <= 10 BEGIN DBMS_OUTPUT.PUT_LINE('Iteration '+ isnull(i, '')); END; END;
DECLARE salary NUMBER; BEGIN salary := 5000; IF salary > 1000 THEN DBMS_OUTPUT.PUT_LINE('Salary is good'); ELSE DBMS_OUTPUT.PUT_LINE('Salary is low'); END IF; FOR i IN 1..10 LOOP DBMS_OUTPUT.PUT_LINE('Iteration '|| i); END LOOP; END;
BEGIN DECLARE @i INT = 1; WHILE @i <= 100 BEGIN IF i MOD 2 = 0 BEGIN UPDATE employees SET salary = salary * 1.10 WHERE id = i; END ELSE BEGIN UPDATE employees SET salary = salary * 0.90 WHERE id = i; END END; COMMIT; END;
BEGIN FOR i IN 1..100 LOOP IF i MOD 2 = 0 THEN UPDATE employees SET salary = salary * 1.10 WHERE id = i; ELSE UPDATE employees SET salary = salary * 0.90 WHERE id = i; END IF; END LOOP; COMMIT; END;
IF OBJECT_ID('get_employee_name', 'FN') IS NOT NULL DROP FUNCTION get_employee_name; GO CREATE FUNCTION get_employee_name(@employee_id FLOAT) RETURNS VARCHAR(4000) AS BEGIN DECLARE @emp_name VARCHAR(100); SELECT @emp_name = isnull(first_name, '') + ' ' + isnull(last_name, '') FROM employees WHERE @employee_id = @employee_id; IF @emp_name IS NULL BEGIN RAISERROR('-20001 Invalid employee ID', 16, 1); END RETURN @emp_name; IF @@FETCH_STATUS <> 0 BEGIN RETURN NULL; END END; IF OBJECT_ID('update_employee_salary', 'P') IS NOT NULL DROP PROCEDURE update_employee_salary; GO CREATE PROCEDURE update_employee_salary(@employee_id FLOAT, @new_salary FLOAT) AS BEGIN SET NOCOUNT ON; UPDATE employees SET salary = @new_salary WHERE @employee_id = @employee_id; IF @@ROWCOUNT = 0 BEGIN RAISERROR('-20002 Invalid employee ID', 16, 1); END END; BEGIN DECLARE @emp_name VARCHAR(100); BEGIN SET @emp_name = dbo.get_employee_name(100); DBMS_OUTPUT.PUT_LINE('Employee name: ' + isnull(@emp_name, '')); END; BEGIN dbo.update_employee_salary(200, 20000); DBMS_OUTPUT.PUT_LINE('Salary updated successfully'); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' + ISNULL(SQLERRM, '')); END; END;
CREATE OR REPLACE FUNCTION get_employee_name(employee_id NUMBER) RETURN VARCHAR2 AS emp_name VARCHAR2(100); BEGIN SELECT first_name || ' ' || last_name INTO emp_name FROM employees WHERE employee_id = employee_id; IF emp_name IS NULL THEN RAISE_APPLICATION_ERROR(-20001, 'Invalid employee ID'); END IF; RETURN emp_name; EXCEPTION WHEN NO_DATA_FOUND THEN RETURN NULL; END get_employee_name; CREATE OR REPLACE PROCEDURE update_employee_salary(employee_id NUMBER, new_salary NUMBER) AS BEGIN UPDATE employees SET salary = new_salary WHERE employee_id = employee_id; IF SQL%ROWCOUNT = 0 THEN RAISE_APPLICATION_ERROR(-20002, 'Invalid employee ID'); END IF; END update_employee_salary; BEGIN DECLARE emp_name VARCHAR2(100); BEGIN emp_name := get_employee_name(100); DBMS_OUTPUT.PUT_LINE('Employee name: ' || emp_name); END; BEGIN update_employee_salary(200, 20000); DBMS_OUTPUT.PUT_LINE('Salary updated successfully'); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' || SQLERRM); END; END;
EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
IF OBJECT_ID('get_employee_salary', 'FN') IS NOT NULL DROP FUNCTION get_employee_salary; GO CREATE FUNCTION get_employee_salary(@employee_id IN NUMBERDECLARE ) RETURN BEGIN NUMBER RETURN NULL; END; IS BEGIN RETURN (SELECT salary FROM employees WHERE employee_id = employee_id); END; BEGIN DECLARE @emp_salary FLOAT; BEGIN SET @emp_salary = dbo.get_employee_salary(100); DBMS_OUTPUT.PUT_LINE('Employee salary: ' + isnull(@emp_salary, '')); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No employee found with the given ID.'); END END; END;
CREATE OR REPLACE FUNCTION get_employee_salary(employee_id IN NUMBER) RETURN NUMBER IS BEGIN RETURN (SELECT salary FROM employees WHERE employee_id = employee_id); END; BEGIN DECLARE emp_salary NUMBER; BEGIN emp_salary := get_employee_salary(100); DBMS_OUTPUT.PUT_LINE('Employee salary: ' || emp_salary); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No employee found with the given ID.'); END; END;
IF OBJECT_ID('update_employee_salary', 'P') IS NOT NULL DROP PROCEDURE update_employee_salary; GO CREATE PROCEDURE update_employee_salary( @employee_id IN AS NUMBER, salary_increment IN NUMBER) IS BEGIN UPDATE employees SET salary = salary + salary_increment WHERE employee_id = employee_id; COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
CREATE OR REPLACE PROCEDURE update_employee_salary( employee_id IN NUMBER, salary_increment IN NUMBER) IS BEGIN UPDATE employees SET salary = salary + salary_increment WHERE employee_id = employee_id; COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
IF OBJECT_ID('update_employee', 'P') IS NOT NULL DROP PROCEDURE update_employee; GO CREATE PROCEDURE update_employee( @employee_id IN AS NUMBER, new_salary IN NUMBER, OUT error_code OUT VARCHAR2 ) IS updated_rows NUMBER; BEGIN UPDATE employees SET salary = new_salary WHERE employee_id = employee_id; SELECT @updated_rows = COUNT(*) FROM employees WHERE employee_id = employee_id AND salary = new_salary; IF updated_rows = 0 BEGIN set @error_code = 'EMP_NOT_FOUND'; END ELSE BEGIN set @error_code = 'SUCCESS'; END END;
CREATE OR REPLACE PROCEDURE update_employee( employee_id IN NUMBER, new_salary IN NUMBER, OUT error_code OUT VARCHAR2 ) IS updated_rows NUMBER; BEGIN UPDATE employees SET salary = new_salary WHERE employee_id = employee_id; SELECT COUNT(*) INTO updated_rows FROM employees WHERE employee_id = employee_id AND salary = new_salary; IF updated_rows = 0 THEN error_code := 'EMP_NOT_FOUND'; ELSE error_code := 'SUCCESS'; END IF; END;
DECLARE @v_salary FLOAT; BEGIN SELECT @v_salary = salary FROM employees WHERE employee_id = 1; IF @v_salary > 10000 BEGIN UPDATE employees SET salary = @v_salary * 1.10 WHERE employee_id = 1; COMMIT; DBMS_OUTPUT.PUT_LINE('Salary updated successfully'); END ELSE BEGIN DBMS_OUTPUT.PUT_LINE('Salary cannot be updated. Threshold not met.'); END EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' + ISNULL(SQLERRM, '')); END;
DECLARE v_salary NUMBER; BEGIN SELECT salary INTO v_salary FROM employees WHERE employee_id = 1; IF v_salary > 10000 THEN UPDATE employees SET salary = v_salary * 1.10 WHERE employee_id = 1; COMMIT; DBMS_OUTPUT.PUT_LINE('Salary updated successfully'); ELSE DBMS_OUTPUT.PUT_LINE('Salary cannot be updated. Threshold not met.'); END IF; EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' || SQLERRM); END;
IF OBJECT_ID('increment_sales', 'P') IS NOT NULL DROP PROCEDURE increment_sales; GO CREATE PROCEDURE increment_sales(@product_id IN AS NUMBER, increment_amount IN NUMBER) AS BEGIN UPDATE SALES SET quantity = quantity + increment_amount WHERE product_id = product_id; IF @@ROWCOUNT = 0 BEGIN RAISERROR('-20001 Product not found', 16, 1); END END; IF OBJECT_ID('get_total_sales', 'FN') IS NOT NULL DROP FUNCTION get_total_sales; GO CREATE FUNCTION get_total_sales() RETURNS FLOAT AS BEGIN RETURN ( SELECT SUM(quantity) FROM SALES ); END; DECLARE @total_sales FLOAT; BEGIN SET @total_sales = dbo.get_total_sales(); IF @total_sales > 100000 BEGIN COMMIT; END ELSE BEGIN ROLLBACK; END END;
CREATE OR REPLACE PROCEDURE increment_sales(product_id IN NUMBER, increment_amount IN NUMBER) AS BEGIN UPDATE SALES SET quantity = quantity + increment_amount WHERE product_id = product_id; IF SQL%ROWCOUNT = 0 THEN RAISE_APPLICATION_ERROR(-20001, 'Product not found'); END IF; END; CREATE OR REPLACE FUNCTION get_total_sales() RETURN NUMBER AS BEGIN RETURN ( SELECT SUM(quantity) FROM SALES ); END; DECLARE total_sales NUMBER; BEGIN total_sales := get_total_sales(); IF total_sales > 100000 THEN COMMIT; ELSE ROLLBACK; END IF; END;
IF OBJECT_ID('my_proc', 'P') IS NOT NULL DROP PROCEDURE my_proc; GO CREATE PROCEDURE my_proc (@a IN AS NUMBER, b IN OUT NUMBER) IS BEGIN set @b = a * 2; EXCEPTION WHEN OTHERS THEN set @b = NULL; RAISERROR('-20000 An error occurred in my_proc', 16, 1); END;
CREATE OR REPLACE PROCEDURE my_proc (a IN NUMBER, b IN OUT NUMBER) IS BEGIN b := a * 2; EXCEPTION WHEN OTHERS THEN b := NULL; RAISE_APPLICATION_ERROR(-20000, 'An error occurred in my_proc'); END;
IF OBJECT_ID('EXCEEDING_BUDGET', 'P') IS NOT NULL DROP PROCEDURE EXCEEDING_BUDGET; GO CREATE PROCEDURE EXCEEDING_BUDGET ( @department_id IN AS NUMBER ) AS BEGIN *** xpenses for the department DECLARE @total_expenses FLOAT; BEGIN SELECT @total_expenses = SUM(expense_amount) FROM expenses WHERE department_id = department_id; IF @@FETCH_STATUS <> 0 BEGIN SET @total_expenses = 0; END END; *** exceed budget DECLARE @budget_amount FLOAT; BEGIN SELECT @budget_amount = @budget_amount FROM departments WHERE department_id = department_id; IF @@FETCH_STATUS <> 0 BEGIN SET @budget_amount = 0; END END; IF @total_expenses > @budget_amount BEGIN *** email DBMS_OUTPUT.PUT_LINE('Expenses for Department ' + isnull(department_id, '') + ' exceed budget.'); END END;
CREATE OR REPLACE PROCEDURE EXCEEDING_BUDGET ( department_id IN NUMBER ) AS BEGIN -- Calculate total expenses for the department DECLARE total_expenses NUMBER; BEGIN SELECT SUM(expense_amount) INTO total_expenses FROM expenses WHERE department_id = department_id; EXCEPTION WHEN NO_DATA_FOUND THEN total_expenses := 0; END; -- Check if expenses exceed budget DECLARE budget_amount NUMBER; BEGIN SELECT budget_amount INTO budget_amount FROM departments WHERE department_id = department_id; EXCEPTION WHEN NO_DATA_FOUND THEN budget_amount := 0; END; IF total_expenses > budget_amount THEN -- Send notification email DBMS_OUTPUT.PUT_LINE('Expenses for Department ' || department_id || ' exceed budget.'); END IF; END;
CREATE TABLE products ( id FLOAT, name VARCHAR(255), price FLOAT, CONSTRAINT products_pk PRIMARY KEY (id) ); INSERT INTO products (id, name, price) VALUES (1, 'Product 1', 10); INSERT INTO products (id, name, price) VALUES (2, 'Product 2', 20); INSERT INTO products (id, name, price) VALUES (3, 'Product 3', 30); CREATE PROCEDURE get_product_by_id ( @IN p_id AS NUMBER, OUT p_name VARCHAR(255), OUT p_price NUMBER ) IS BEGIN SELECT @p_name = name, @p_price = price FROM products WHERE id = p_id; END; DECLARE @l_name VARCHAR(255); l_price NUMBER; BEGIN dbo.get_product_by_id(1, @l_name, l_price); DBMS_OUTPUT.PUT_LINE(isnull(@l_name, '') + ', ' + isnull(l_price, '')); END;
CREATE TABLE products ( id NUMBER, name VARCHAR(255), price NUMBER, CONSTRAINT products_pk PRIMARY KEY (id) ); INSERT INTO products (id, name, price) VALUES (1, 'Product 1', 10); INSERT INTO products (id, name, price) VALUES (2, 'Product 2', 20); INSERT INTO products (id, name, price) VALUES (3, 'Product 3', 30); CREATE PROCEDURE get_product_by_id ( IN p_id NUMBER, OUT p_name VARCHAR(255), OUT p_price NUMBER ) IS BEGIN SELECT name, price INTO p_name, p_price FROM products WHERE id = p_id; END; DECLARE l_name VARCHAR(255); l_price NUMBER; BEGIN get_product_by_id(1, l_name, l_price); DBMS_OUTPUT.PUT_LINE(l_name || ', ' || l_price); END;
DECLARE @v_empno FLOAT; v_ename dbo.VARCHAR2(25); v_salary NUMBER; BEGIN SELECT @v_empno = empno, @v_ename = ename, @v_salary = salary FROM emp WHERE empno = 7369; DBMS_OUTPUT.PUT_LINE('Employee Number: ' + isnull(@v_empno, '')); DBMS_OUTPUT.PUT_LINE('Employee Name: ' + isnull(v_ename, '')); DBMS_OUTPUT.PUT_LINE('Salary: ' + isnull(v_salary, '')); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('Employee not found'); END END;
DECLARE v_empno NUMBER; v_ename VARCHAR2(25); v_salary NUMBER; BEGIN SELECT empno, ename, salary INTO v_empno, v_ename, v_salary FROM emp WHERE empno = 7369; DBMS_OUTPUT.PUT_LINE('Employee Number: ' || v_empno); DBMS_OUTPUT.PUT_LINE('Employee Name: ' || v_ename); DBMS_OUTPUT.PUT_LINE('Salary: ' || v_salary); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('Employee not found'); END;
IF OBJECT_ID('sample_proc', 'P') IS NOT NULL DROP PROCEDURE sample_proc; GO CREATE PROCEDURE sample_proc(@name IN AS VARCHAR2) AS BEGIN *** iables counter SET @NUMBER = 0; *** name DECLARE @i INT = 1 ; WHILE @i <= LEN(name) BEGIN *** nter for each character set @counter = counter + 1; END; -- Ou... SQLINES DEMO *** DBMS_OUTPUT.PUT_LINE('The name ' + isnull(name, '') + ' has ' + isnull(counter, '') + ' characters.'); END; -- Ca... SQLINES DEMO *** BEGIN dbo.sample_proc('John Doe'); END;
CREATE OR REPLACE PROCEDURE sample_proc(name IN VARCHAR2) AS BEGIN -- Declare local variables counter NUMBER := 0; -- Loop through the name FOR i IN 1 .. LENGTH(name) LOOP -- Increment the counter for each character counter := counter + 1; END LOOP; -- Output the counter DBMS_OUTPUT.PUT_LINE('The name ' || name || ' has ' || counter || ' characters.'); END; -- Call the procedure BEGIN sample_proc('John Doe'); END;
DECLARE @v_empno SMALLINT; v_sal ROW_NUMBER(7,2); BEGIN SELECT @v_empno = empno, @v_sal = salary FROM emp WHERE empno = 7839; IF v_sal > 10000 BEGIN UPDATE emp SET salary = v_sal * 1.10 WHERE empno = @v_empno; END ELSE BEGIN RAISERROR('-20101 Salary must be greater than 10000', 16, 1); END END;
DECLARE v_empno NUMBER(4); v_sal NUMBER(7,2); BEGIN SELECT empno, salary INTO v_empno, v_sal FROM emp WHERE empno = 7839; IF v_sal > 10000 THEN UPDATE emp SET salary = v_sal * 1.10 WHERE empno = v_empno; ELSE RAISE_APPLICATION_ERROR(-20101, 'Salary must be greater than 10000'); END IF; END;
CREATE PROCEDURE fetch_employee_salary(@emp_id IN AS VARCHAR2) AS BEGIN DECLARE @salary FLOAT; BEGIN SELECT @salary = @salary FROM employees WHERE employee_id = emp_id; DBMS_OUTPUT.PUT_LINE('Salary: ' + isnull(@salary, '')); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('Employee not found'); END END; END;
CREATE PROCEDURE fetch_employee_salary(emp_id IN VARCHAR2) AS BEGIN DECLARE salary NUMBER; BEGIN SELECT salary INTO salary FROM employees WHERE employee_id = emp_id; DBMS_OUTPUT.PUT_LINE('Salary: ' || salary); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('Employee not found'); END; END;
CREATE TABLE employee( id FLOAT, name VARCHAR(30), salary FLOAT, PRIMARY KEY (id) ); INSERT INTO employee VALUES (1, 'John Doe', 1000); INSERT INTO employee VALUES (2, 'Jane Doe', 1500); CREATE PROCEDURE get_employee(@in_id FLOAT, @out_name VARCHAR(4000), @out_salary FLOAT) AS BEGIN SET NOCOUNT ON; SELECT @out_name = name, @out_salary = salary FROM employee WHERE id = @in_id; END;
CREATE TABLE employee( id NUMBER, name VARCHAR2(30), salary NUMBER, PRIMARY KEY (id) ); INSERT INTO employee VALUES (1, 'John Doe', 1000); INSERT INTO employee VALUES (2, 'Jane Doe', 1500); CREATE PROCEDURE get_employee(in_id NUMBER, out_name VARCHAR2, out_salary NUMBER) AS BEGIN SELECT name, salary INTO out_name, out_salary FROM employee WHERE id = in_id; END;
BEGIN -- De... SQLINES DEMO *** DECLARE @emp_id DECIMAL(19,4) /* Use -meta option EMPLOYEE.employee_id%TYPE */; salary NUMBER; BEGIN -- Ge... SQLINES DEMO *** SELECT @emp_id = employee_id FROM EMPLOYEE WHERE last_name = 'Smith'; *** exists IF @emp_id IS NULL BEGIN RAISERROR('-20001 Employee not found', 16, 1); END -- Ge... SQLINES DEMO *** SELECT @salary = salary FROM SALARY WHERE employee_id = @emp_id; -- Di... SQLINES DEMO *** DBMS_OUTPUT.PUT_LINE('Salary: ' + isnull(salary, '')); END; END;
BEGIN -- Declare variables DECLARE emp_id EMPLOYEE.employee_id%TYPE; salary NUMBER; BEGIN -- Get employee ID SELECT employee_id INTO emp_id FROM EMPLOYEE WHERE last_name = 'Smith'; -- Check if employee exists IF emp_id IS NULL THEN RAISE_APPLICATION_ERROR(-20001, 'Employee not found'); END IF; -- Get salary SELECT salary INTO salary FROM SALARY WHERE employee_id = emp_id; -- Display salary DBMS_OUTPUT.PUT_LINE('Salary: ' || salary); END; END;
IF OBJECT_ID('proc_test', 'P') IS NOT NULL DROP PROCEDURE proc_test; GO CREATE PROCEDURE proc_test (@arg1 IN AS VARCHAR2, arg2 IN NUMBER) IS cnt NUMBER; BEGIN SELECT @cnt = COUNT(*) FROM test_table WHERE col1 = arg1; IF cnt = 0 BEGIN RAISERROR('-20000 No rows found for ' + isnull(arg1, ''), 16, 1); END UPDATE test_table SET col2 = arg2 WHERE col1 = arg1; COMMIT; END;
CREATE OR REPLACE PROCEDURE proc_test (arg1 IN VARCHAR2, arg2 IN NUMBER) IS cnt NUMBER; BEGIN SELECT COUNT(*) INTO cnt FROM test_table WHERE col1 = arg1; IF cnt = 0 THEN RAISE_APPLICATION_ERROR(-20000, 'No rows found for ' || arg1); END IF; UPDATE test_table SET col2 = arg2 WHERE col1 = arg1; COMMIT; END;
CREATE TABLE users (id FLOAT, name VARCHAR(255)); INSERT INTO users VALUES (1, 'John'); INSERT INTO users VALUES (2, 'Jane'); CREATE PROCEDURE get_user (@user_id IN AS NUMBER, user_name OUT VARCHAR2) IS BEGIN SELECT @user_name = name FROM users WHERE id = user_id; END; BEGIN DECLARE @user_name VARCHAR(255); dbo.get_user(2, @user_name); DBMS_OUTPUT.PUT_LINE('User name: ' + isnull(@user_name, '')); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('Error getting user: ' + ISNULL(SQLERRM, '')); END;
CREATE TABLE users (id NUMBER, name VARCHAR2(255)); INSERT INTO users VALUES (1, 'John'); INSERT INTO users VALUES (2, 'Jane'); CREATE PROCEDURE get_user (user_id IN NUMBER, user_name OUT VARCHAR2) IS BEGIN SELECT name INTO user_name FROM users WHERE id = user_id; END; BEGIN DECLARE user_name VARCHAR2(255); get_user(2, user_name); DBMS_OUTPUT.PUT_LINE('User name: ' || user_name); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('Error getting user: ' || SQLERRM); END;
IF OBJECT_ID('get_customer_orders', 'FN') IS NOT NULL DROP FUNCTION get_customer_orders; GO CREATE FUNCTION get_customer_orders(@customer_id IN NUMBERDECLARE ) RETURN BEGIN SYS_REFCURSOR RETURN NULL; END; IS rc SYS_REFCURSOR; BEGIN SELECT order_id, order_date, total_amount FROM orders WHERE customer_id = customer_id; RETURN rc; END; DECLARE @customer_id FLOAT := 123; orders SYS_REFCURSOR; BEGIN SET @orders = dbo.get_customer_orders(@customer_id); WHILE 1=1 BEGIN FETCH orders INTO @order_id, @order_date, @total_amount; IF @@FETCH_STATUS <> 0 BREAK; *** ails here END; CLOSE orders; IF @@FETCH_STATUS <> 0 BEGIN END *** found scenario END;
CREATE OR REPLACE FUNCTION get_customer_orders(customer_id IN NUMBER) RETURN SYS_REFCURSOR IS rc SYS_REFCURSOR; BEGIN OPEN rc FOR SELECT order_id, order_date, total_amount FROM orders WHERE customer_id = customer_id; RETURN rc; END; DECLARE customer_id NUMBER := 123; orders SYS_REFCURSOR; BEGIN orders := get_customer_orders(customer_id); LOOP FETCH orders INTO order_id, order_date, total_amount; EXIT WHEN orders%NOTFOUND; -- Process order details here END LOOP; CLOSE orders; EXCEPTION WHEN NO_DATA_FOUND THEN -- Handle no orders found scenario END;
CREATE PROCEDURE GetCustomerOrders(@custid IN AS NUMBER) AS CURSOR MyCursor IS SELECT orderid, orderdate, totalamount FROM orders WHERE custid = custid; BEGIN DECLARE order_record CURSOR FOR MyCursor LOOP DBMS_OUTPUT.PUT_LINE('Order ID: ' + isnull(@order_record_orderid, '')); DBMS_OUTPUT.PUT_LINE('Order Date: ' + isnull(@order_record_orderdate, '')); DBMS_OUTPUT.PUT_LINE('Total Amount: ' + isnull(@order_record_totalamount, '')); FETCH order_record INTO; END; CLOSE order_record; DEALLOCATE order_record; IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No orders found for customer ' + isnull(custid, '')); END END; /
CREATE PROCEDURE GetCustomerOrders(custid IN NUMBER) AS CURSOR MyCursor IS SELECT orderid, orderdate, totalamount FROM orders WHERE custid = custid; BEGIN FOR order_record IN MyCursor LOOP DBMS_OUTPUT.PUT_LINE('Order ID: ' || order_record.orderid); DBMS_OUTPUT.PUT_LINE('Order Date: ' || order_record.orderdate); DBMS_OUTPUT.PUT_LINE('Total Amount: ' || order_record.totalamount); END LOOP; EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No orders found for customer ' || custid); END; /
CREATE PROCEDURE get_emp_by_dept(@deptno IN AS NUMBER) AS BEGIN SELECT empno, ename, job, sal FROM emp WHERE deptno = deptno; END; / DECLARE @v_sal FLOAT; BEGIN SELECT @v_sal = sal FROM emp WHERE empno = 7788; IF @v_sal > 20000 BEGIN DBMS_OUTPUT.PUT_LINE('Salary is greater than 20,000'); END ELSE BEGIN DBMS_OUTPUT.PUT_LINE('Salary is less than or equal to 20,000'); END END; / CREATE FUNCTION get_avg_sal(@deptno IN NUMBERDECLARE ) RETURN BEGIN NUMBER RETURN NULL; END; AS BEGIN RETURN (SELECT AVG(sal) FROM emp WHERE deptno = deptno); END; /
CREATE PROCEDURE get_emp_by_dept(deptno IN NUMBER) AS BEGIN SELECT empno, ename, job, sal FROM emp WHERE deptno = deptno; END; / DECLARE v_sal NUMBER; BEGIN SELECT sal INTO v_sal FROM emp WHERE empno = 7788; IF v_sal > 20000 THEN DBMS_OUTPUT.PUT_LINE('Salary is greater than 20,000'); ELSE DBMS_OUTPUT.PUT_LINE('Salary is less than or equal to 20,000'); END IF; END; / CREATE FUNCTION get_avg_sal(deptno IN NUMBER) RETURN NUMBER AS BEGIN RETURN (SELECT AVG(sal) FROM emp WHERE deptno = deptno); END; /
BEGIN DECLARE @v_cursor SYS_REFCURSOR; v_name VARCHAR(100); v_age NUMBER; BEGIN SELECT name, age FROM employee WHERE age > 30; WHILE 1=1 BEGIN FETCH v_cursor INTO @v_name, @v_age; IF @@FETCH_STATUS <> 0 BREAK; DBMS_OUTPUT.PUT_LINE('Name: ' + isnull(v_name, '') + ', Age: ' + isnull(v_age, '')); END; CLOSE v_cursor; IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No employees found with age greater than 30'); END END; END;
BEGIN DECLARE v_cursor SYS_REFCURSOR; v_name VARCHAR(100); v_age NUMBER; BEGIN OPEN v_cursor FOR SELECT name, age FROM employee WHERE age > 30; LOOP FETCH v_cursor INTO v_name, v_age; EXIT WHEN v_cursor%NOTFOUND; DBMS_OUTPUT.PUT_LINE('Name: ' || v_name || ', Age: ' || v_age); END LOOP; CLOSE v_cursor; EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No employees found with age greater than 30'); END; END;
IF OBJECT_ID('get_employee_details', 'P') IS NOT NULL DROP PROCEDURE get_employee_details; GO CREATE PROCEDURE get_employee_details (@emp_id IN AS NUMBER) IS emp_name dbo.VARCHAR2(255); emp_salary NUMBER; BEGIN SELECT @emp_name = first_name, @emp_salary = last_name, salary FROM employees WHERE employee_id = emp_id; DBMS_OUTPUT.PUT_LINE('Employee Name: ' + isnull(emp_name, '')); DBMS_OUTPUT.PUT_LINE('Employee Salary: ' + isnull(emp_salary, '')); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No employee found with the given ID'); END END;
CREATE OR REPLACE PROCEDURE get_employee_details (emp_id IN NUMBER) IS emp_name VARCHAR2(255); emp_salary NUMBER; BEGIN SELECT first_name, last_name, salary INTO emp_name, emp_salary FROM employees WHERE employee_id = emp_id; DBMS_OUTPUT.PUT_LINE('Employee Name: ' || emp_name); DBMS_OUTPUT.PUT_LINE('Employee Salary: ' || emp_salary); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No employee found with the given ID'); END;
IF OBJECT_ID('proc_example', 'P') IS NOT NULL DROP PROCEDURE proc_example; GO CREATE PROCEDURE proc_example( @p_id IN AS NUMBER, p_name IN VARCHAR2 ) AS BEGIN *** iables l_id NUMBER; l_name dbo.VARCHAR2(20); *** local variables SELECT @l_id = id, @l_name = name FROM table_name WHERE id = p_id; -- Er... SQLINES DEMO *** IF l_id IS NULL BEGIN RAISERROR('-20001 No record found for ID: ' + isnull(p_id, ''), 16, 1); END *** local variables UPDATE table_name SET name = p_name WHERE id = l_id; -- Co... SQLINES DEMO *** COMMIT; END; DECLARE @v_id FLOAT; v_name dbo.VARCHAR2(20); BEGIN *** in a cursor DECLARE cur_row CURSOR FOR SELECT id, name FROM table_name; OPEN cur_row; FETCH cur_row INTO; WHILE @@FETCH_STATUS=0 BEGIN SET @v_id = @cur_row_id; SET @v_name = @cur_row_name; *** dure dbo.proc_example(@v_id, v_name); FETCH cur_row INTO; END; CLOSE cur_row; DEALLOCATE cur_row; END;
CREATE OR REPLACE PROCEDURE proc_example( p_id IN NUMBER, p_name IN VARCHAR2 ) AS BEGIN -- Declare local variables l_id NUMBER; l_name VARCHAR2(20); -- Select data into local variables SELECT id, name INTO l_id, l_name FROM table_name WHERE id = p_id; -- Error handling IF l_id IS NULL THEN RAISE_APPLICATION_ERROR(-20001, 'No record found for ID: ' || p_id); END IF; -- Update data using local variables UPDATE table_name SET name = p_name WHERE id = l_id; -- Commit changes COMMIT; END; DECLARE v_id NUMBER; v_name VARCHAR2(20); BEGIN -- Loop through rows in a cursor FOR cur_row IN ( SELECT id, name FROM table_name ) LOOP v_id := cur_row.id; v_name := cur_row.name; -- Call stored procedure proc_example(v_id, v_name); END LOOP; END;
IF OBJECT_ID('insert_emp', 'P') IS NOT NULL DROP PROCEDURE insert_emp; GO CREATE PROCEDURE insert_emp( @emp_id IN AS NUMBER, first_name IN VARCHAR2, last_name IN VARCHAR2, salary IN NUMBER, dept_id IN NUMBER ) AS l_emp_id NUMBER; BEGIN SELECT @l_emp_id = emp_id FROM emp WHERE emp_id = emp_id; IF l_emp_id IS NULL BEGIN INSERT INTO emp ( emp_id, first_name, last_name, salary, dept_id ) VALUES ( emp_id, first_name, last_name, salary, dept_id ); END ELSE BEGIN RAISERROR('-20000 Employee already exists', 16, 1); END END; / BEGIN dbo.insert_emp(1001, 'John', 'Doe', 50000, 20); COMMIT; END; /
CREATE OR REPLACE PROCEDURE insert_emp( emp_id IN NUMBER, first_name IN VARCHAR2, last_name IN VARCHAR2, salary IN NUMBER, dept_id IN NUMBER ) AS l_emp_id NUMBER; BEGIN SELECT emp_id INTO l_emp_id FROM emp WHERE emp_id = emp_id; IF l_emp_id IS NULL THEN INSERT INTO emp ( emp_id, first_name, last_name, salary, dept_id ) VALUES ( emp_id, first_name, last_name, salary, dept_id ); ELSE RAISE_APPLICATION_ERROR(-20000, 'Employee already exists'); END IF; END; / BEGIN insert_emp(1001, 'John', 'Doe', 50000, 20); COMMIT; END; /
IF OBJECT_ID('proc_demo', 'P') IS NOT NULL DROP PROCEDURE proc_demo; GO CREATE PROCEDURE proc_demo(@var1 IN AS NUMBER) AS BEGIN IF var1 > 0 BEGIN dbms_output.put_line('Number is positive'); END ELSE IF var1 < 0 BEGIN RAISE exception_demo('Number is negative'); END ELSE BEGIN dbms_output.put_line('Number is zero'); END dbms_output.put_line('Procedure completed'); EXCEPTION WHEN exception_demo THEN dbms_output.put_line('Exception occurred'); END proc_demo; BEGIN DECLARE @i INT = 1; WHILE @i <= 5 BEGIN dbo.proc_demo(i); END; END; /
CREATE OR REPLACE PROCEDURE proc_demo(var1 IN NUMBER) AS BEGIN IF var1 > 0 THEN dbms_output.put_line('Number is positive'); ELSEIF var1 < 0 THEN RAISE exception_demo('Number is negative'); ELSE dbms_output.put_line('Number is zero'); END IF; dbms_output.put_line('Procedure completed'); EXCEPTION WHEN exception_demo THEN dbms_output.put_line('Exception occurred'); END proc_demo; BEGIN FOR i IN 1..5 LOOP proc_demo(i); END LOOP; END; /
DECLARE @v_emp_id FLOAT; v_emp_name dbo.VARCHAR2(100); v_salary NUMBER; v_dept_id NUMBER; BEGIN SELECT @v_emp_id = emp_id, @v_emp_name = emp_name, @v_salary = salary, @v_dept_id = dept_id FROM employees WHERE emp_id = 100; IF v_salary > 10000 BEGIN UPDATE employees SET salary = v_salary + 1000 WHERE emp_id = @v_emp_id; END ELSE IF v_salary > 5000 BEGIN UPDATE employees SET salary = v_salary + 500 WHERE emp_id = @v_emp_id; END ELSE BEGIN UPDATE employees SET salary = v_salary + 200 WHERE emp_id = @v_emp_id; END COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
DECLARE v_emp_id NUMBER; v_emp_name VARCHAR2(100); v_salary NUMBER; v_dept_id NUMBER; BEGIN SELECT emp_id, emp_name, salary, dept_id INTO v_emp_id, v_emp_name, v_salary, v_dept_id FROM employees WHERE emp_id = 100; IF v_salary > 10000 THEN UPDATE employees SET salary = v_salary + 1000 WHERE emp_id = v_emp_id; ELSIF v_salary > 5000 THEN UPDATE employees SET salary = v_salary + 500 WHERE emp_id = v_emp_id; ELSE UPDATE employees SET salary = v_salary + 200 WHERE emp_id = v_emp_id; END IF; COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
CREATE PROCEDURE get_employee_salary(@emp_id IN AS NUMBER, OUT salary OUT NUMBER) AS BEGIN SELECT @salary = salary FROM employees WHERE employee_id = emp_id; IF @@FETCH_STATUS <> 0 BEGIN set @salary = NULL; END END; CREATE FUNCTION get_employee_name(@emp_id IN NUMBERDECLARE ) RETURN BEGIN VARCHAR2 RETURN NULL; END; AS BEGIN RETURN (SELECT isnull(first_name, '') + ' ' + isnull(last_name, '') FROM employees WHERE employee_id = emp_id); END; BEGIN *** truct: IF-THEN-ELSE IF dbo.get_employee_name(1) = 'John Smith' BEGIN *** DATE UPDATE employees SET salary = salary * 1.10 WHERE employee_id = 1; COMMIT; END ELSE BEGIN *** AISE_APPLICATION_ERROR RAISERROR('-20001 Employee not found', 16, 1); END END;
CREATE PROCEDURE get_employee_salary(emp_id IN NUMBER, OUT salary OUT NUMBER) AS BEGIN SELECT salary INTO salary FROM employees WHERE employee_id = emp_id; EXCEPTION WHEN NO_DATA_FOUND THEN salary := NULL; END; CREATE FUNCTION get_employee_name(emp_id IN NUMBER) RETURN VARCHAR2 AS BEGIN RETURN (SELECT first_name || ' ' || last_name FROM employees WHERE employee_id = emp_id); END; BEGIN -- Control flow construct: IF-THEN-ELSE IF get_employee_name(1) = 'John Smith' THEN -- SQL statement: UPDATE UPDATE employees SET salary = salary * 1.10 WHERE employee_id = 1; COMMIT; ELSE -- Error handling: RAISE_APPLICATION_ERROR RAISE_APPLICATION_ERROR(-20001, 'Employee not found'); END IF; END;
BEGIN -- De... SQLINES DEMO *** v_emp_id NUMBER; v_salary NUMBER; v_bonus NUMBER; v_error_code NUMBER; v_error_msg dbo.VARCHAR2(200); *** rom user SELECT @v_emp_id = emp_id FROM employees WHERE last_name = 'Smith'; *** and bonus set @v_salary = 10000; set @v_bonus = v_salary * 0.1; *** salary and bonus BEGIN UPDATE employees SET salary = v_salary, bonus = v_bonus WHERE emp_id = v_emp_id; EXCEPTION WHEN OTHERS THEN set @v_error_code = @@ERROR; set @v_error_msg = SQLERRM; *** notify the user DBMS_OUTPUT.PUT_LINE('Error updating employee: ' + isnull(v_error_code, '') + ' - ' + isnull(v_error_msg, '')); END; -- Co... SQLINES DEMO *** COMMIT; *** ed salary and bonus SELECT @v_salary = salary, @v_bonus = bonus FROM employees WHERE emp_id = v_emp_id; DBMS_OUTPUT.PUT_LINE('Updated salary: ' + isnull(v_salary, '')); DBMS_OUTPUT.PUT_LINE('Updated bonus: ' + isnull(v_bonus, '')); END;
BEGIN -- Declare variables v_emp_id NUMBER; v_salary NUMBER; v_bonus NUMBER; v_error_code NUMBER; v_error_msg VARCHAR2(200); -- Get employee ID from user SELECT emp_id INTO v_emp_id FROM employees WHERE last_name = 'Smith'; -- Calculate salary and bonus v_salary := 10000; v_bonus := v_salary * 0.1; -- Update employee's salary and bonus BEGIN UPDATE employees SET salary = v_salary, bonus = v_bonus WHERE emp_id = v_emp_id; EXCEPTION WHEN OTHERS THEN v_error_code := SQLCODE; v_error_msg := SQLERRM; -- Log the error and notify the user DBMS_OUTPUT.PUT_LINE('Error updating employee: ' || v_error_code || ' - ' || v_error_msg); END; -- Commit the changes COMMIT; -- Display the updated salary and bonus SELECT salary, bonus INTO v_salary, v_bonus FROM employees WHERE emp_id = v_emp_id; DBMS_OUTPUT.PUT_LINE('Updated salary: ' || v_salary); DBMS_OUTPUT.PUT_LINE('Updated bonus: ' || v_bonus); END;
BEGIN /* SQLINES DEMO *** and cursors */ DECLARE @v_empno FLOAT; v_ename dbo.VARCHAR2(30); rs_emps SYS_REFCURSOR; BEGIN /* SQLINES DEMO *** tch employee data */ SELECT empno, ename FROM emp; /* SQLINES DEMO *** ursor and display */ FETCH rs_emps INTO @v_empno, @v_ename; WHILE rs_emps%FOUND BEGIN DBMS_OUTPUT.PUT_LINE(isnull(@v_empno, '') + ' - ' + isnull(v_ename, '')); FETCH rs_emps INTO @v_empno, @v_ename; END; /* Close cursor */ CLOSE rs_emps; IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No employees found.'); END END; END;
BEGIN /* Declare variables and cursors */ DECLARE v_empno NUMBER; v_ename VARCHAR2(30); rs_emps SYS_REFCURSOR; BEGIN /* Open cursor to fetch employee data */ OPEN rs_emps FOR SELECT empno, ename FROM emp; /* Fetch data from cursor and display */ FETCH rs_emps INTO v_empno, v_ename; WHILE rs_emps%FOUND LOOP DBMS_OUTPUT.PUT_LINE(v_empno || ' - ' || v_ename); FETCH rs_emps INTO v_empno, v_ename; END LOOP; /* Close cursor */ CLOSE rs_emps; EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No employees found.'); END; END;
DECLARE @v_emp_id FLOAT := 100; v_emp_name dbo.VARCHAR2(50); v_salary NUMBER; v_bonus NUMBER; BEGIN SELECT @v_emp_name = emp_name, @v_salary = salary, @v_bonus = bonus FROM employees WHERE emp_id = @v_emp_id; DBMS_OUTPUT.PUT_LINE('Employee Name: ' + isnull(v_emp_name, '')); DBMS_OUTPUT.PUT_LINE('Salary: ' + isnull(v_salary, '')); DBMS_OUTPUT.PUT_LINE('Bonus: ' + isnull(v_bonus, '')); IF v_bonus > 5000 BEGIN DBMS_OUTPUT.PUT_LINE('Employee is eligible for special bonus.'); END IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('Employee with ID ' + isnull(@v_emp_id, '') + ' not found.'); END END;
DECLARE v_emp_id NUMBER := 100; v_emp_name VARCHAR2(50); v_salary NUMBER; v_bonus NUMBER; BEGIN SELECT emp_name, salary, bonus INTO v_emp_name, v_salary, v_bonus FROM employees WHERE emp_id = v_emp_id; DBMS_OUTPUT.PUT_LINE('Employee Name: ' || v_emp_name); DBMS_OUTPUT.PUT_LINE('Salary: ' || v_salary); DBMS_OUTPUT.PUT_LINE('Bonus: ' || v_bonus); IF v_bonus > 5000 THEN DBMS_OUTPUT.PUT_LINE('Employee is eligible for special bonus.'); END IF; EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('Employee with ID ' || v_emp_id || ' not found.'); END;
DECLARE @v_num FLOAT := 10; v_str dbo.VARCHAR2(20) := 'Hello World'; BEGIN DECLARE @i INT = 1 ; WHILE @i <= @v_num BEGIN DBMS_OUTPUT.PUT_LINE(isnull(v_str, '') + ' ' + isnull(i, '')); END; EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' + ISNULL(SQLERRM, '')); END;
DECLARE v_num NUMBER := 10; v_str VARCHAR2(20) := 'Hello World'; BEGIN FOR i IN 1 .. v_num LOOP DBMS_OUTPUT.PUT_LINE(v_str || ' ' || i); END LOOP; EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' || SQLERRM); END;
IF OBJECT_ID('show_employees_by_dept', 'P') IS NOT NULL DROP PROCEDURE show_employees_by_dept; GO CREATE PROCEDURE show_employees_by_dept(@dept_id IN AS NUMBER) AS CURSOR emp_cursor IS SELECT employee_id, first_name, last_name FROM employees WHERE department_id = dept_id; BEGIN DECLARE emp_rec CURSOR FOR emp_cursor LOOP dbms_output.put_line(isnull(@emp_rec_employee_id, '') + ' - ' + isnull(@emp_rec_first_name, '') + ' ' + isnull(@emp_rec_last_name, '')); FETCH emp_rec INTO; END; CLOSE emp_rec; DEALLOCATE emp_rec; IF @@FETCH_STATUS <> 0 BEGIN dbms_output.put_line('No employees found in department ' + isnull(dept_id, '')); END END; /
CREATE OR REPLACE PROCEDURE show_employees_by_dept(dept_id IN NUMBER) AS CURSOR emp_cursor IS SELECT employee_id, first_name, last_name FROM employees WHERE department_id = dept_id; BEGIN FOR emp_rec IN emp_cursor LOOP dbms_output.put_line(emp_rec.employee_id || ' - ' || emp_rec.first_name || ' ' || emp_rec.last_name); END LOOP; EXCEPTION WHEN NO_DATA_FOUND THEN dbms_output.put_line('No employees found in department ' || dept_id); END; /
DECLARE @v_salary FLOAT; BEGIN SELECT @v_salary = salary FROM employees WHERE employee_id = 1; IF @v_salary > 10000 BEGIN RAISERROR('-20001 Salary is too high', 16, 1); END UPDATE employees SET salary = @v_salary + 1000 WHERE employee_id = 1; COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
DECLARE v_salary NUMBER; BEGIN SELECT salary INTO v_salary FROM employees WHERE employee_id = 1; IF v_salary > 10000 THEN RAISE_APPLICATION_ERROR(-20001, 'Salary is too high'); END IF; UPDATE employees SET salary = v_salary + 1000 WHERE employee_id = 1; COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
BEGIN DECLARE @v_id FLOAT; v_name dbo.VARCHAR2(250); BEGIN SELECT @v_id = id, @v_name = name FROM employees WHERE id = 1; DBMS_OUTPUT.PUT_LINE('Employee ID: ' + isnull(@v_id, '')); DBMS_OUTPUT.PUT_LINE('Employee Name: ' + isnull(v_name, '')); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('Employee not found'); END END; IF @v_id > 10 BEGIN DBMS_OUTPUT.PUT_LINE('Employee ID is greater than 10'); END ELSE IF @v_id < 10 BEGIN DBMS_OUTPUT.PUT_LINE('Employee ID is less than 10'); END ELSE BEGIN DBMS_OUTPUT.PUT_LINE('Employee ID is equal to 10'); END END;
BEGIN DECLARE v_id NUMBER; v_name VARCHAR2(250); BEGIN SELECT id, name INTO v_id, v_name FROM employees WHERE id = 1; DBMS_OUTPUT.PUT_LINE('Employee ID: ' || v_id); DBMS_OUTPUT.PUT_LINE('Employee Name: ' || v_name); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('Employee not found'); END; IF v_id > 10 THEN DBMS_OUTPUT.PUT_LINE('Employee ID is greater than 10'); ELSIF v_id < 10 THEN DBMS_OUTPUT.PUT_LINE('Employee ID is less than 10'); ELSE DBMS_OUTPUT.PUT_LINE('Employee ID is equal to 10'); END IF; END;
DECLARE @v_emp_id FLOAT; v_emp_name dbo.VARCHAR2(200); v_salary NUMBER; v_dept_id NUMBER; CURSOR c_emp IS SELECT emp_id, emp_name, salary, dept_id FROM employees; BEGIN -- Fe... SQLINES DEMO *** DECLARE emp_row CURSOR FOR c_emp LOOP SET @v_emp_id = @emp_row_emp_id; SET @v_emp_name = @emp_row_emp_name; SET @v_salary = @emp_row_salary; SET @v_dept_id = @emp_row_dept_id; *** the employee data... FETCH emp_row INTO; END; CLOSE emp_row; DEALLOCATE emp_row; *** salary SELECT @v_salary = MAX(salary) FROM employees; *** ment of an employee UPDATE employees SET dept_id = 10 WHERE emp_id = 1; -- Ha... SQLINES DEMO *** BEGIN *** might cause an error... IF @@FETCH_STATUS <> 0 BEGIN END -- Ha... SQLINES DEMO *** END; END;
DECLARE v_emp_id NUMBER; v_emp_name VARCHAR2(200); v_salary NUMBER; v_dept_id NUMBER; CURSOR c_emp IS SELECT emp_id, emp_name, salary, dept_id FROM employees; BEGIN -- Fetch all employees FOR emp_row IN c_emp LOOP v_emp_id := emp_row.emp_id; v_emp_name := emp_row.emp_name; v_salary := emp_row.salary; v_dept_id := emp_row.dept_id; -- Do something with the employee data... END LOOP; -- Find the highest salary SELECT MAX(salary) INTO v_salary FROM employees; -- Update the department of an employee UPDATE employees SET dept_id = 10 WHERE emp_id = 1; -- Handle an error BEGIN -- Do something that might cause an error... EXCEPTION WHEN NO_DATA_FOUND THEN -- Handle the error... END; END;
IF OBJECT_ID('sp_update_employee', 'P') IS NOT NULL DROP PROCEDURE sp_update_employee; GO CREATE PROCEDURE sp_update_employee( @in_emp_id IN AS NUMBER, in_last_name IN VARCHAR2, in_salary IN NUMBER ) IS BEGIN UPDATE employees SET last_name = in_last_name, salary = in_salary WHERE employee_id = in_emp_id; COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISERROR('-20001 Employee not found', 16, 1); END;
CREATE OR REPLACE PROCEDURE sp_update_employee( in_emp_id IN NUMBER, in_last_name IN VARCHAR2, in_salary IN NUMBER ) IS BEGIN UPDATE employees SET last_name = in_last_name, salary = in_salary WHERE employee_id = in_emp_id; COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE_APPLICATION_ERROR(-20001, 'Employee not found'); END;
IF OBJECT_ID('my_proc', 'P') IS NOT NULL DROP PROCEDURE my_proc; GO CREATE PROCEDURE my_proc ( @param1 IN AS VARCHAR2, param2 IN NUMBER, OUT param3 OUT VARCHAR2 ) IS BEGIN -- So... SQLINES DEMO *** IF param2 > 10 BEGIN set @param3 = 'Greater than 10'; END ELSE BEGIN set @param3 = 'Less than or equal to 10'; END -- Er... SQLINES DEMO *** IF DBMS_ERRORCODE = 100 BEGIN RAISERROR( '-20000 Error occurred: ' + ISNULL(DBMS_ERROR_TEXT, '') , 16, 1); END END;
CREATE OR REPLACE PROCEDURE my_proc ( param1 IN VARCHAR2, param2 IN NUMBER, OUT param3 OUT VARCHAR2 ) IS BEGIN -- Some processing IF param2 > 10 THEN param3 := 'Greater than 10'; ELSE param3 := 'Less than or equal to 10'; END IF; -- Error handling IF DBMS_ERRORCODE = 100 THEN RAISE_APPLICATION_ERROR( -20000, 'Error occurred: ' || DBMS_ERROR_TEXT ); END IF; END;
DECLARE @v_emp_id FLOAT; BEGIN SELECT @v_emp_id = emp_id FROM employees WHERE last_name = 'Scott'; IF @v_emp_id IS NULL BEGIN RAISERROR('-20001 Employee not found', 16, 1); END UPDATE employees SET salary = salary * 1.10 WHERE emp_id = @v_emp_id; COMMIT; END;
DECLARE v_emp_id NUMBER; BEGIN SELECT emp_id INTO v_emp_id FROM employees WHERE last_name = 'Scott'; IF v_emp_id IS NULL THEN RAISE_APPLICATION_ERROR(-20001, 'Employee not found'); END IF; UPDATE employees SET salary = salary * 1.10 WHERE emp_id = v_emp_id; COMMIT; END;
DECLARE @v_emp_id DECIMAL(19,4) /* Use -meta option EMP.emp_id%TYPE */; v_emp_name EMP.emp_name%TYPE; v_salary ROW_NUMBER(10,2); BEGIN SELECT @v_emp_id = emp_id, @v_emp_name = emp_name, @v_salary = salary FROM EMP WHERE emp_id = 7839; IF @v_emp_id IS NULL BEGIN RAISERROR('-20101 Employee not found.', 16, 1); END DBMS_OUTPUT.PUT_LINE(isnull(v_emp_name, '') + ' earns ' + ISNULL(CONVERT(VARCHAR, v_salary), '') + ' per month.'); END; /
DECLARE v_emp_id EMP.emp_id%TYPE; v_emp_name EMP.emp_name%TYPE; v_salary NUMBER(10,2); BEGIN SELECT emp_id, emp_name, salary INTO v_emp_id, v_emp_name, v_salary FROM EMP WHERE emp_id = 7839; IF v_emp_id IS NULL THEN RAISE_APPLICATION_ERROR(-20101, 'Employee not found.'); END IF; DBMS_OUTPUT.PUT_LINE(v_emp_name || ' earns ' || TO_CHAR(v_salary) || ' per month.'); END; /
CREATE TABLE orders (order_id FLOAT, product_id FLOAT, quantity FLOAT, PRIMARY KEY (order_id)); INSERT INTO orders VALUES (1, 10, 5); INSERT INTO orders VALUES (2, 20, 10); INSERT INTO orders VALUES (3, 30, 15); CREATE PROCEDURE get_order_total (@order_id IN AS NUMBER, total_out OUT NUMBER) AS BEGIN SELECT @total_out = SUM(quantity) FROM orders WHERE order_id = order_id; END; BEGIN DECLARE @order_id FLOAT := 1; total NUMBER; BEGIN dbo.get_order_total(@order_id, total); DBMS_OUTPUT.PUT_LINE('Total for order ' + isnull(@order_id, '') + ' is ' + isnull(total, '')); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No data found for order ' + isnull(@order_id, '')); END END; END;
CREATE TABLE orders (order_id NUMBER, product_id NUMBER, quantity NUMBER, PRIMARY KEY (order_id)); INSERT INTO orders VALUES (1, 10, 5); INSERT INTO orders VALUES (2, 20, 10); INSERT INTO orders VALUES (3, 30, 15); CREATE PROCEDURE get_order_total (order_id IN NUMBER, total_out OUT NUMBER) AS BEGIN SELECT SUM(quantity) INTO total_out FROM orders WHERE order_id = order_id; END; BEGIN DECLARE order_id NUMBER := 1; total NUMBER; BEGIN get_order_total(order_id, total); DBMS_OUTPUT.PUT_LINE('Total for order ' || order_id || ' is ' || total); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No data found for order ' || order_id); END; END;
DECLARE @v_emp_id FLOAT; v_salary NUMBER; BEGIN SELECT @v_emp_id = employee_id, @v_salary = salary FROM employees WHERE last_name = 'King'; IF v_salary > 10000 BEGIN UPDATE employees SET salary = salary * 1.10 WHERE employee_id = @v_emp_id; END ELSE BEGIN RAISERROR( '-20001 Salary must be greater than 10000 for a raise' , 16, 1); END END;
DECLARE v_emp_id NUMBER; v_salary NUMBER; BEGIN SELECT employee_id, salary INTO v_emp_id, v_salary FROM employees WHERE last_name = 'King'; IF v_salary > 10000 THEN UPDATE employees SET salary = salary * 1.10 WHERE employee_id = v_emp_id; ELSE RAISE_APPLICATION_ERROR( -20001, 'Salary must be greater than 10000 for a raise' ); END IF; END;
CREATE PROCEDURE update_dept_salary ( @deptno IN AS NUMBER, percent_change IN NUMBER ) AS v_salary SET @NUMBER = 0; BEGIN DECLARE emp_rec CURSOR FOR SELECT empno, ename, job, sal FROM emp WHERE deptno = deptno; OPEN emp_rec; FETCH emp_rec INTO; WHILE @@FETCH_STATUS=0 BEGIN set @v_salary = @emp_rec_sal * (1 + percent_change / 100); UPDATE emp SET sal = v_salary WHERE empno = @emp_rec_empno; DBMS_OUTPUT.PUT_LINE( 'Updated salary for ' + isnull(@emp_rec_ename, '') + ' (' + isnull(@emp_rec_job, '') + '): ' + isnull(v_salary, '') ); FETCH emp_rec INTO; END; CLOSE emp_rec; DEALLOCATE emp_rec; END; / DECLARE @i FLOAT := 1; total_salary SET @NUMBER = 0; BEGIN WHILE 1=1 BEGIN SELECT @total_salary = sal FROM emp WHERE empno = @i; EXIT WHEN total_salary IS NULL; SET @i = @i + 1; END; DBMS_OUTPUT.PUT_LINE('Total salary for all employees: ' + isnull(total_salary, '')); END; /
CREATE PROCEDURE update_dept_salary ( deptno IN NUMBER, percent_change IN NUMBER ) AS v_salary NUMBER := 0; BEGIN FOR emp_rec IN ( SELECT empno, ename, job, sal FROM emp WHERE deptno = deptno ) LOOP v_salary := emp_rec.sal * (1 + percent_change / 100); UPDATE emp SET sal = v_salary WHERE empno = emp_rec.empno; DBMS_OUTPUT.PUT_LINE( 'Updated salary for ' || emp_rec.ename || ' (' || emp_rec.job || '): ' || v_salary ); END LOOP; END; / DECLARE i NUMBER := 1; total_salary NUMBER := 0; BEGIN LOOP SELECT sal INTO total_salary FROM emp WHERE empno = i; EXIT WHEN total_salary IS NULL; i := i + 1; END LOOP; DBMS_OUTPUT.PUT_LINE('Total salary for all employees: ' || total_salary); END; /
IF OBJECT_ID('insert_employee', 'P') IS NOT NULL DROP PROCEDURE insert_employee; GO CREATE PROCEDURE insert_employee( @first_name IN AS VARCHAR2, last_name IN VARCHAR2, email IN VARCHAR2, phone_number IN VARCHAR2, hire_date IN DATE, job_id IN VARCHAR2, salary IN NUMBER, commission_pct IN NUMBER, manager_id IN NUMBER, department_id IN NUMBER) IS BEGIN INSERT INTO employees( first_name, last_name, email, phone_number, hire_date, job_id, salary, commission_pct, manager_id, department_id) VALUES( first_name, last_name, email, phone_number, hire_date, job_id, salary, commission_pct, manager_id, department_id); COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
CREATE OR REPLACE PROCEDURE insert_employee( first_name IN VARCHAR2, last_name IN VARCHAR2, email IN VARCHAR2, phone_number IN VARCHAR2, hire_date IN DATE, job_id IN VARCHAR2, salary IN NUMBER, commission_pct IN NUMBER, manager_id IN NUMBER, department_id IN NUMBER) IS BEGIN INSERT INTO employees( employee_id, first_name, last_name, email, phone_number, hire_date, job_id, salary, commission_pct, manager_id, department_id) VALUES( employees_seq.NEXTVAL, first_name, last_name, email, phone_number, hire_date, job_id, salary, commission_pct, manager_id, department_id); COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
CREATE PROCEDURE get_customer_orders(@p_customer_id IN AS NUMBER) AS CURSOR c_orders IS SELECT order_id, order_date, total_amount FROM orders WHERE customer_id = p_customer_id; BEGIN DECLARE r_order CURSOR FOR c_orders LOOP SELECT @v_order_id = order_id, @v_order_date = order_date, @v_total_amount = total_amount FROM r_order; FETCH r_order INTO; END; CLOSE r_order; DEALLOCATE r_order; IF @@FETCH_STATUS <> 0 BEGIN RAISERROR('-20100 No orders found for customer', 16, 1); END END; / DECLARE @l_order_id FLOAT; l_order_date DATE; l_total_amount NUMBER; BEGIN SELECT @l_order_id = order_id, @l_order_date = order_date, @l_total_amount = total_amount FROM orders WHERE customer_id = 1; DBMS_OUTPUT.put_line('Order ID: ' + isnull(@l_order_id, '')); DBMS_OUTPUT.put_line('Order Date: ' + isnull(l_order_date, '')); DBMS_OUTPUT.put_line('Total Amount: ' + isnull(l_total_amount, '')); IF @@FETCH_STATUS <> 0 BEGIN RAISERROR('-20100 No orders found for customer', 16, 1); END END; /
CREATE PROCEDURE get_customer_orders(p_customer_id IN NUMBER) AS CURSOR c_orders IS SELECT order_id, order_date, total_amount FROM orders WHERE customer_id = p_customer_id; BEGIN FOR r_order IN c_orders LOOP SELECT order_id, order_date, total_amount INTO v_order_id, v_order_date, v_total_amount FROM r_order; END LOOP; EXCEPTION WHEN NO_DATA_FOUND THEN RAISE_APPLICATION_ERROR(-20100, 'No orders found for customer'); END; / DECLARE l_order_id NUMBER; l_order_date DATE; l_total_amount NUMBER; BEGIN SELECT order_id, order_date, total_amount INTO l_order_id, l_order_date, l_total_amount FROM orders WHERE customer_id = 1; DBMS_OUTPUT.put_line('Order ID: ' || l_order_id); DBMS_OUTPUT.put_line('Order Date: ' || l_order_date); DBMS_OUTPUT.put_line('Total Amount: ' || l_total_amount); EXCEPTION WHEN NO_DATA_FOUND THEN RAISE_APPLICATION_ERROR(-20100, 'No orders found for customer'); END; /
CREATE PROCEDURE example_proc ( @id_in IN AS NUMBER, name_out OUT VARCHAR2 ) IS l_name dbo.VARCHAR2(255); BEGIN SELECT @l_name = name FROM table_name WHERE id = id_in; set @name_out = l_name; IF @@FETCH_STATUS <> 0 BEGIN set @name_out = NULL; END WHEN OTHERS THEN ROLLBACK; RAISE; END;
CREATE PROCEDURE example_proc ( id_in IN NUMBER, name_out OUT VARCHAR2 ) IS l_name VARCHAR2(255); BEGIN SELECT name INTO l_name FROM table_name WHERE id = id_in; name_out := l_name; EXCEPTION WHEN NO_DATA_FOUND THEN name_out := NULL; WHEN OTHERS THEN ROLLBACK; RAISE; END;
DECLARE @v_salary FLOAT; v_emp_name dbo.VARCHAR2(20); BEGIN SELECT @v_salary = salary, @v_emp_name = ename FROM emp WHERE empno = 1; DBMS_OUTPUT.put_line('Employee Name: ' + isnull(v_emp_name, '')); DBMS_OUTPUT.put_line('Salary: ' + isnull(@v_salary, '')); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.put_line('Employee not found'); END END;
DECLARE v_salary NUMBER; v_emp_name VARCHAR2(20); BEGIN SELECT salary, ename INTO v_salary, v_emp_name FROM emp WHERE empno = 1; DBMS_OUTPUT.put_line('Employee Name: ' || v_emp_name); DBMS_OUTPUT.put_line('Salary: ' || v_salary); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.put_line('Employee not found'); END;
IF OBJECT_ID('get_employee_info', 'P') IS NOT NULL DROP PROCEDURE get_employee_info; GO CREATE PROCEDURE get_employee_info(@emp_id IN AS NUMBER) AS BEGIN SELECT @emp_info = employee_id, first_name, last_name, email, phone_number FROM employees WHERE employee_id = emp_id; IF @@FETCH_STATUS <> 0 BEGIN RAISERROR('-20000 Employee not found', 16, 1); END END;
CREATE OR REPLACE PROCEDURE get_employee_info(emp_id IN NUMBER) AS BEGIN SELECT employee_id, first_name, last_name, email, phone_number INTO emp_info FROM employees WHERE employee_id = emp_id; EXCEPTION WHEN NO_DATA_FOUND THEN RAISE_APPLICATION_ERROR(-20000, 'Employee not found'); END;
DECLARE @month INTEGER; @day INTEGER; @year INTEGER; BEGIN SELECT @month = CONVERT(DATETIME, CONVERT(DATE, GETDATE())) @day, @year; IF @month IN (1, 2, 3) BEGIN UPDATE WEATHER SET RAIN_AMOUNT = RAIN_AMOUNT + 1 WHERE CITY = 'Seattle'; END ELSE IF @month IN (7, 8, 9) BEGIN UPDATE WEATHER SET SUNSHINE_HOURS = SUNSHINE_HOURS + 1 WHERE CITY = 'Portland'; END ELSE IF @month IN (10, 11, 12) BEGIN UPDATE WEATHER SET SNOW_AMOUNT = SNOW_AMOUNT + 1 WHERE CITY = 'Boise'; END END;
DECLARE @month INTEGER; @day INTEGER; @year INTEGER; BEGIN SELECT TRUNC(SYSDATE) INTO @month, @day, @year; IF @month IN (1, 2, 3) THEN UPDATE WEATHER SET RAIN_AMOUNT = RAIN_AMOUNT + 1 WHERE CITY = 'Seattle'; ELSIF @month IN (7, 8, 9) THEN UPDATE WEATHER SET SUNSHINE_HOURS = SUNSHINE_HOURS + 1 WHERE CITY = 'Portland'; ELSIF @month IN (10, 11, 12) THEN UPDATE WEATHER SET SNOW_AMOUNT = SNOW_AMOUNT + 1 WHERE CITY = 'Boise'; END IF; END;
BEGIN DECLARE @x INT := 5; DECLARE @y INT := 10; DECLARE @z INT; BEGIN SET @z = @x + @y; DBMS_OUTPUT.PUT_LINE('The sum is ' + isnull(@z, '')); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('Error: ' + ISNULL(SQLERRM, '')); END; END;
BEGIN DECLARE x NUMBER(6) := 5; DECLARE y NUMBER(6) := 10; DECLARE z NUMBER(6); BEGIN z := x + y; DBMS_OUTPUT.PUT_LINE('The sum is ' || z); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('Error: ' || SQLERRM); END; END;
DECLARE @l_emp_id FLOAT; l_emp_name dbo.VARCHAR2(50); l_emp_salary NUMBER; BEGIN IF @@FETCH_STATUS <> 0 BEGIN RAISERROR('-20000 No employee found with the specified ID', 16, 1); END WHEN OTHERS THEN RAISE; END; SELECT @l_emp_id = emp_id, @l_emp_name = emp_name, @l_emp_salary = emp_salary FROM employees WHERE emp_id = 100; DBMS_OUTPUT.PUT_LINE('Employee Details:'); DBMS_OUTPUT.PUT_LINE('Employee ID: ' + isnull(@l_emp_id, '')); DBMS_OUTPUT.PUT_LINE('Employee Name: ' + isnull(l_emp_name, '')); DBMS_OUTPUT.PUT_LINE('Employee Salary: ' + isnull(l_emp_salary, '')); END;
DECLARE l_emp_id NUMBER; l_emp_name VARCHAR2(50); l_emp_salary NUMBER; BEGIN EXCEPTION WHEN NO_DATA_FOUND THEN RAISE_APPLICATION_ERROR(-20000, 'No employee found with the specified ID'); WHEN OTHERS THEN RAISE; END; SELECT emp_id, emp_name, emp_salary INTO l_emp_id, l_emp_name, l_emp_salary FROM employees WHERE emp_id = 100; DBMS_OUTPUT.PUT_LINE('Employee Details:'); DBMS_OUTPUT.PUT_LINE('Employee ID: ' || l_emp_id); DBMS_OUTPUT.PUT_LINE('Employee Name: ' || l_emp_name); DBMS_OUTPUT.PUT_LINE('Employee Salary: ' || l_emp_salary); END;
CREATE PROCEDURE get_customer(@cust_id IN AS NUMBER) IS customer_name dbo.VARCHAR2(50); BEGIN SELECT @customer_name = name FROM customers WHERE id = cust_id; DBMS_OUTPUT.PUT_LINE('Customer Name: ' + isnull(customer_name, '')); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('Customer not found'); END END;
PROCEDURE get_customer(cust_id IN NUMBER) IS customer_name VARCHAR2(50); BEGIN SELECT name INTO customer_name FROM customers WHERE id = cust_id; DBMS_OUTPUT.PUT_LINE('Customer Name: ' || customer_name); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('Customer not found'); END;
BEGIN DECLARE @n FLOAT; BEGIN SELECT @n = COUNT(*) FROM employees; IF @n > 0 BEGIN RAISERROR('-20000 Employees table is not empty', 16, 1); END WHEN TOO_MANY_ROWS THEN DBMS_OUTPUT.PUT_LINE('Too many rows found in employees table'); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('No employees found'); END END; BEGIN INSERT INTO employees (last_name, first_name, department_id) VALUES ('Doe', 'John', 10); EXCEPTION WHEN DUP_VAL_ON_INDEX THEN DBMS_OUTPUT.PUT_LINE('Employee with that last name already exists'); END; END;
BEGIN DECLARE n NUMBER; BEGIN SELECT COUNT(*) INTO n FROM employees; IF n > 0 THEN RAISE_APPLICATION_ERROR(-20000, 'Employees table is not empty'); END IF; EXCEPTION WHEN TOO_MANY_ROWS THEN DBMS_OUTPUT.PUT_LINE('Too many rows found in employees table'); WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('No employees found'); END; BEGIN INSERT INTO employees (last_name, first_name, department_id) VALUES ('Doe', 'John', 10); EXCEPTION WHEN DUP_VAL_ON_INDEX THEN DBMS_OUTPUT.PUT_LINE('Employee with that last name already exists'); END; END;
DECLARE @v_deptno FLOAT; v_salary NUMBER; v_employee dbo.VARCHAR2(20); BEGIN SELECT TOP 1 @v_deptno = deptno, @v_salary = salary, @v_employee = employee FROM emp ; IF @v_deptno IS NULL BEGIN DBMS_OUTPUT.put_line('No records found.'); END ELSE BEGIN DBMS_OUTPUT.put_line('Department Number: ' + isnull(@v_deptno, '')); DBMS_OUTPUT.put_line('Salary: ' + isnull(v_salary, '')); DBMS_OUTPUT.put_line('Employee: ' + isnull(v_employee, '')); END IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.put_line('No records found.'); END END; /
DECLARE v_deptno NUMBER; v_salary NUMBER; v_employee VARCHAR2(20); BEGIN SELECT deptno, salary, employee INTO v_deptno, v_salary, v_employee FROM emp WHERE rownum = 1; IF v_deptno IS NULL THEN DBMS_OUTPUT.put_line('No records found.'); ELSE DBMS_OUTPUT.put_line('Department Number: ' || v_deptno); DBMS_OUTPUT.put_line('Salary: ' || v_salary); DBMS_OUTPUT.put_line('Employee: ' || v_employee); END IF; EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.put_line('No records found.'); END; /
CREATE PROCEDURE GetCustomerOrders( @customer_ID IN AS NUMBER ) AS BEGIN *** related to the customer. SELECT order_ID, order_date, total_amount FROM Orders WHERE customer_ID = customer_ID; END GetCustomerOrders; /
CREATE PROCEDURE GetCustomerOrders( customer_ID IN NUMBER ) AS BEGIN -- Fetch all orders related to the customer. SELECT order_ID, order_date, total_amount FROM Orders WHERE customer_ID = customer_ID; END GetCustomerOrders; /
DECLARE @num FLOAT := 10; BEGIN BEGIN SELECT @num = COUNT(*) FROM employees WHERE job_id = 'CLERK'; IF @@FETCH_STATUS <> 0 BEGIN SET @num = 0; END END; IF @num > 0 BEGIN DECLARE emp CURSOR FOR SELECT employee_id, first_name, last_name FROM employees WHERE job_id = 'CLERK'; OPEN emp; FETCH emp INTO; WHILE @@FETCH_STATUS=0 BEGIN DBMS_OUTPUT.PUT_LINE('Employee: ' + isnull(@emp_first_name, '') + ' ' + isnull(@emp_last_name, '')); FETCH emp INTO; END; CLOSE emp; DEALLOCATE emp; END ELSE BEGIN DBMS_OUTPUT.PUT_LINE('No clerks found'); END END;
DECLARE num NUMBER := 10; BEGIN BEGIN SELECT COUNT(*) INTO num FROM employees WHERE job_id = 'CLERK'; EXCEPTION WHEN NO_DATA_FOUND THEN num := 0; END; IF num > 0 THEN FOR emp IN ( SELECT employee_id, first_name, last_name FROM employees WHERE job_id = 'CLERK' ) LOOP DBMS_OUTPUT.PUT_LINE('Employee: ' || emp.first_name || ' ' || emp.last_name); END LOOP; ELSE DBMS_OUTPUT.PUT_LINE('No clerks found'); END IF; END;
CREATE PROCEDURE prc_emp_salary_update( @p_emp_id IN AS NUMBER, p_new_salary IN NUMBER ) IS sal_diff NUMBER; BEGIN SELECT @sal_diff = salary FROM emp WHERE empno = p_emp_id; IF p_new_salary < sal_diff BEGIN RAISERROR('-20501 Invalid salary: must be greater than old salary', 16, 1); END ELSE BEGIN UPDATE emp SET salary = p_new_salary WHERE empno = p_emp_id; COMMIT; END EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
CREATE PROCEDURE prc_emp_salary_update( p_emp_id IN NUMBER, p_new_salary IN NUMBER ) IS sal_diff NUMBER; BEGIN SELECT salary INTO sal_diff FROM emp WHERE empno = p_emp_id; IF p_new_salary < sal_diff THEN RAISE_APPLICATION_ERROR(-20501, 'Invalid salary: must be greater than old salary'); ELSE UPDATE emp SET salary = p_new_salary WHERE empno = p_emp_id; COMMIT; END IF; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END;
BEGIN BEGIN INSERT INTO employees (emp_id, name, salary) VALUES (1234, 'John Doe', 10000); COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END; DECLARE @emp_name VARCHAR(50); BEGIN SELECT @emp_name = name FROM employees WHERE emp_id = 1234; DBMS_OUTPUT.PUT_LINE('Employee name: ' + isnull(@emp_name, '')); IF @@FETCH_STATUS <> 0 BEGIN DBMS_OUTPUT.PUT_LINE('Employee not found'); END END; END;
BEGIN BEGIN INSERT INTO employees (emp_id, name, salary) VALUES (1234, 'John Doe', 10000); COMMIT; EXCEPTION WHEN OTHERS THEN ROLLBACK; RAISE; END; DECLARE emp_name VARCHAR2(50); BEGIN SELECT name INTO emp_name FROM employees WHERE emp_id = 1234; DBMS_OUTPUT.PUT_LINE('Employee name: ' || emp_name); EXCEPTION WHEN NO_DATA_FOUND THEN DBMS_OUTPUT.PUT_LINE('Employee not found'); END; END;
IF OBJECT_ID('greet_user', 'P') IS NOT NULL DROP PROCEDURE greet_user; GO CREATE PROCEDURE greet_user(@fullname IN AS VARCHAR2) AS BEGIN DBMS_OUTPUT.PUT_LINE('Hello, ' + isnull(fullname, '') + '!'); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' + ISNULL(SQLERRM, '')); END; DECLARE @fullname VARCHAR(30) := 'John Doe'; BEGIN dbo.greet_user(@fullname); END;
CREATE OR REPLACE PROCEDURE greet_user(fullname IN VARCHAR2) AS BEGIN DBMS_OUTPUT.PUT_LINE('Hello, ' || fullname || '!'); EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('An error occurred: ' || SQLERRM); END; DECLARE fullname VARCHAR2(30) := 'John Doe'; BEGIN greet_user(fullname); END;