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PORDBMS - SQL Max Value of a column based upon another column's uniqueness
 

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  1. PORDBMS - SQL Max Value of a column based upon another column's uniqueness
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    <p>This is really difficult question to ask. So here goes. The following sql:</p> <pre><code>select * from Survey_Answers where QuestionID='50a350a5-9f53-4f1a-83b8-485de45ac9a9' order by MaxRating </code></pre> <p>Generates the following:</p> <pre><code>QuestionID Answer Value MaxRating MinRating -------------------------------------------------------------------------- 50a350a5-9f53-4f1a-83b8-485de45ac9a9 anywhere 0 1 0 50a350a5-9f53-4f1a-83b8-485de45ac9a9 anyplace 0 2 0 50a350a5-9f53-4f1a-83b8-485de45ac9a9 test 9 2 0 50a350a5-9f53-4f1a-83b8-485de45ac9a9 love 10 3 0 50a350a5-9f53-4f1a-83b8-485de45ac9a9 no one 10 4 0 50a350a5-9f53-4f1a-83b8-485de45ac9a9 feel this way 0 5 0 (6 row(s) affected) </code></pre> <p>In the MaxRating Column there are two "2"s. I would like the max value of those two columns. So for instance if there was three 1s and two 2s and five 4s, I would like the max value of the "value" column based upon distinct maxrating columns.</p> <p>I hope this make sense so instead of the above the result should be:</p> <pre><code>QuestionID Answer Value MaxRating MinRating -------------------------------------------------------------------------- 50a350a5-9f53-4f1a-83b8-485de45ac9a9 anywhere 0 1 0 50a350a5-9f53-4f1a-83b8-485de45ac9a9 test 9 2 0 50a350a5-9f53-4f1a-83b8-485de45ac9a9 love 10 3 0 50a350a5-9f53-4f1a-83b8-485de45ac9a9 no one 10 4 0 50a350a5-9f53-4f1a-83b8-485de45ac9a9 feel this way 0 5 0 </code></pre> <p>The 9 is the max of column "Value" based upon the Maxrating column with data of "2"</p> <p>This is so difficult to explain, so I hope someone understands this. Any help is gladly appreciated. Any help in re-wording this would be great. Thanks.</p>
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    1. COYou should say RDBMS in your questions. There might well be a better way.
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    2. COThanks. Should I edit that for the title and the question?
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