luulinh90s's picture
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<h3><span>Statement:</span> the speed of the giant drop 200 feet is 56 mph</h3>
<h3>Input Table: drop tower : scream zone</h3>
<div class="step">
<div class="step">
<div class="step-title">Step 1: Select rows where the 'model' is 'giant drop'.</div>
<div class="content" id="step-1">
<table>
<tr>
<td>park</td>
<td>tower_height</td>
<td>drop_height</td>
<td>speed</td>
<td>model</td>
<td>opened</td>
<td>height_requirement</td>
</tr>
<tr>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">canada 's wonderland</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">230feet</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">200feet</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">62 mph</span></td>
<td><span class="highlighted-cell" style="background-color:#90EE90;" title="Used in transformation">giant drop</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">1997-01-01</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">inches (cm)</span></td>
</tr>
<tr>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">carowinds</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">174feet</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">100feet</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">56 mph</span></td>
<td><span class="highlighted-cell" style="background-color:#90EE90;" title="Used in transformation">giant drop</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">1996-03-01</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">inches (cm)</span></td>
</tr>
<tr>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">california 's great america</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">224feet</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">207feet</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">62 mph</span></td>
<td><span class="highlighted-cell" style="background-color:#90EE90;" title="Used in transformation">giant drop</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">1996-03-01</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">inches (cm)</span></td>
</tr>
<tr>
<td>kings dominion</td>
<td>305feet</td>
<td>272feet</td>
<td>72 mph</td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">gyro drop</span></td>
<td>2003-03-22</td>
<td>inches (cm)</td>
</tr>
<tr>
<td>kings island</td>
<td>315feet</td>
<td>264feet</td>
<td>67 mph</td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">gyro drop</span></td>
<td>1999-01-01</td>
<td>inches (cm)</td>
</tr>
</table>
</div>
<hr/>
<div class="step">
<div class="step-title">Step 2: Select rows where the 'drop_height' is 200 feet.</div>
<div class="content" id="step-0">
<table>
<tr>
<td>park</td>
<td>tower_height</td>
<td>drop_height</td>
<td>speed</td>
<td>model</td>
<td>opened</td>
<td>height_requirement</td>
</tr>
<tr>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">canada 's wonderland</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">230feet</span></td>
<td><span class="highlighted-cell" style="background-color:#90EE90;" title="Used in transformation">200feet</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">62 mph</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">giant drop</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">1997-01-01</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">inches (cm)</span></td>
</tr>
<tr>
<td>carowinds</td>
<td>174feet</td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">100feet</span></td>
<td>56 mph</td>
<td>giant drop</td>
<td>1996-03-01</td>
<td>inches (cm)</td>
</tr>
<tr>
<td>california 's great america</td>
<td>224feet</td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">207feet</span></td>
<td>62 mph</td>
<td>giant drop</td>
<td>1996-03-01</td>
<td>inches (cm)</td>
</tr>
</table>
</div>
</div>
<hr/>
<div class="step">
<div class="step-title">Step 3: Select rows where the 'speed' is 56 mph.</div>
<div class="content" id="step-1">
<table>
<tr>
<td>park</td>
<td>tower_height</td>
<td>drop_height</td>
<td>speed</td>
<td>model</td>
<td>opened</td>
<td>height_requirement</td>
</tr>
<tr>
<td>canada 's wonderland</td>
<td>230feet</td>
<td>200feet</td>
<td>62 mph</td>
<td>giant drop</td>
<td>1997-01-01</td>
<td>inches (cm)</td>
</tr>
</table>
</div>
</div>
<hr/>
<div class="step">
<div class="step-title">Step 4: Use a `CASE` statement to return TRUE if the number of rows is equal to 1, otherwise return FALSE.</div>
<div class="content" id="step-2">
<table>
<tr>
<td>park</td>
<td>tower_height</td>
<td>drop_height</td>
<td>speed</td>
<td>model</td>
<td>opened</td>
<td>height_requirement</td>
</tr>
</table>
</div>
</div>
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</div>
</div>
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