luulinh90s's picture
update
8431e47
<html><head>
<style>
body { font-family: Arial, sans-serif; margin: 20px; }
h1 { text-align: center; }
.cot-title { color: blue; }
.pos-title { color: green; }
h2 { color: black; text-align: left; }
h3 { color: black; text-align: left; }
h4 { color: darkslategray; }
table { width: 100%; border-collapse: collapse; margin: 20px 0; }
table, th, td { border: 1px solid #ddd; padding: 8px; }
th { background-color: #f2f2f2; }
tr:nth-child(even) { background-color: #f9f9f9; }
.highlight { background-color: #ffffcc; }
.true { color: green; }
.false { color: red; }
.highlighted-cell { background-color: yellow; cursor: pointer; }
.step-title { background-color: #f1f1f1; color: #444; padding: 10px; margin: 10px 0; font-size: 18px; border-left: 4px solid #888; }
.step { display: block; }
</style>
</head><body>
<hr/>
<h3><span>Statement:</span> climax straight - 4 has a masserati 250f chassis</h3>
<h3>Input Table: bruce halford</h3>
<div class="step">
<div class="step">
<div class="step-title">Step 1: Select rows where 'chassis' is 'maserati 250f'.</div>
<div class="content" id="step-1">
<table>
<tr>
<td>year</td>
<td>entrant</td>
<td>chassis</td>
<td>engine</td>
<td>points</td>
</tr>
<tr>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">1956</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">bruce halford</span></td>
<td><span class="highlighted-cell" style="background-color:#90EE90;" title="Used in transformation">maserati 250f</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">maserati straight - 6</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">0</span></td>
</tr>
<tr>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">1957</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">bruce halford</span></td>
<td><span class="highlighted-cell" style="background-color:#90EE90;" title="Used in transformation">maserati 250f</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">maserati straight - 6</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">0</span></td>
</tr>
<tr>
<td>1959</td>
<td>john fisher</td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">lotus 16</span></td>
<td>climax straight - 4</td>
<td>0</td>
</tr>
<tr>
<td>1960</td>
<td>fred tuck cars</td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">cooper t45</span></td>
<td>climax straight - 4</td>
<td>0</td>
</tr>
<tr>
<td>1960</td>
<td>yeoman credit racing team</td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">cooper t51</span></td>
<td>climax straight - 4</td>
<td>0</td>
</tr>
</table>
</div>
<hr/>
<div class="step">
<div class="step-title">Step 2: Select rows where 'engine' is 'climax straight - 4'.</div>
<div class="content" id="step-0">
<table>
<tr>
<td>year</td>
<td>entrant</td>
<td>chassis</td>
<td>engine</td>
<td>points</td>
</tr>
<tr>
<td>1956</td>
<td>bruce halford</td>
<td>maserati 250f</td>
<td>maserati straight - 6</td>
<td>0</td>
</tr>
<tr>
<td>1957</td>
<td>bruce halford</td>
<td>maserati 250f</td>
<td>maserati straight - 6</td>
<td>0</td>
</tr>
</table>
</div>
</div>
<hr/>
<div class="step">
<div class="step-title">Step 3: Use a `CASE` statement to return TRUE if the number of rows is greater than or equal to 1, otherwise return FALSE.</div>
<div class="content" id="step-1">
<table>
<tr>
<td>year</td>
<td>entrant</td>
<td>chassis</td>
<td>engine</td>
<td>points</td>
</tr>
</table>
</div>
</div>
<hr/>
</div>
</div>
<hr/>
</body></html>