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| </head><body> | |
| <hr/> | |
| <h3><span>Statement:</span> there are only three highest ranks listed in the table</h3> | |
| <h3>Input Table: list of sumo record holders</h3> | |
| <div class="step"> | |
| <div class="step"> | |
| <div class="step-title">Step 1: Select distinct values from the 'highest_rank' column.</div> | |
| <div class="content" id="step-1"> | |
| <table> | |
| <tr> | |
| <td>name</td> | |
| <td>total</td> | |
| <td>first</td> | |
| <td>last</td> | |
| <td>highest_rank</td> | |
| </tr> | |
| <tr> | |
| <td>kotonishiki</td> | |
| <td>34</td> | |
| <td>1990-09-01</td> | |
| <td>1999-09-01</td> | |
| <td>sekiwake</td> | |
| </tr> | |
| <tr> | |
| <td>kaiō</td> | |
| <td>32</td> | |
| <td>1994-05-01</td> | |
| <td>2000-07-01</td> | |
| <td>ōzeki</td> | |
| </tr> | |
| <tr> | |
| <td>musōyama</td> | |
| <td>31</td> | |
| <td>1994-03-01</td> | |
| <td>2000-09-01</td> | |
| <td>ōzeki</td> | |
| </tr> | |
| <tr> | |
| <td>hasegawa</td> | |
| <td>30</td> | |
| <td>1965-11-01</td> | |
| <td>1974-09-01</td> | |
| <td>sekiwake</td> | |
| </tr> | |
| <tr> | |
| <td>kotomitsuki</td> | |
| <td>30</td> | |
| <td>2001-01-01</td> | |
| <td>2007-07-01</td> | |
| <td>ōzeki</td> | |
| </tr> | |
| <tr> | |
| <td>akinoshima</td> | |
| <td>27</td> | |
| <td>1988-11-01</td> | |
| <td>2000-09-01</td> | |
| <td>sekiwake</td> | |
| </tr> | |
| <tr> | |
| <td>takamiyama</td> | |
| <td>27</td> | |
| <td>1969-11-01</td> | |
| <td>1982-09-01</td> | |
| <td>sekiwake</td> | |
| </tr> | |
| <tr> | |
| <td>takatōriki</td> | |
| <td>26</td> | |
| <td>1991-05-01</td> | |
| <td>2000-05-01</td> | |
| <td>sekiwake</td> | |
| </tr> | |
| <tr> | |
| <td>wakanosato</td> | |
| <td>26</td> | |
| <td>2000-11-01</td> | |
| <td>2005-09-01</td> | |
| <td>sekiwake</td> | |
| </tr> | |
| <tr> | |
| <td>daikirin</td> | |
| <td>22</td> | |
| <td>1966-11-01</td> | |
| <td>1970-09-01</td> | |
| <td>ōzeki</td> | |
| </tr> | |
| <tr> | |
| <td>tochiazuma ii</td> | |
| <td>22</td> | |
| <td>1997-07-01</td> | |
| <td>2005-01-01</td> | |
| <td>ōzeki</td> | |
| </tr> | |
| <tr> | |
| <td>kisenosato</td> | |
| <td>22</td> | |
| <td>2006-07-01</td> | |
| <td>2011-09-01</td> | |
| <td>ōzeki</td> | |
| </tr> | |
| </table> | |
| </div> | |
| <hr/> | |
| <div class="step"> | |
| <div class="step-title">Step 2: Use a `CASE` statement to return TRUE if the number of distinct values is equal to 3, otherwise return FALSE.</div> | |
| <div class="content" id="step-0"> | |
| <table> | |
| <tr> | |
| <td>highest_rank</td> | |
| </tr> | |
| <tr> | |
| <td><span class="highlighted-cell" style="background-color:#90EE90;" title="Used in transformation">sekiwake</span></td> | |
| </tr> | |
| <tr> | |
| <td><span class="highlighted-cell" style="background-color:#90EE90;" title="Used in transformation">ōzeki</span></td> | |
| </tr> | |
| </table> | |
| </div> | |
| </div> | |
| <hr/> | |
| </div> | |
| </div> | |
| <hr/> | |
| </body></html> | |