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POGet title of the latest record on a group
 

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  1. POGet title of the latest record on a group
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    <p>I'm doing a self join and I have the following query:</p> <pre><code>select max( wf1.id ) as latest_id, max( wf1.created ) as latest_created, wf1.id, wf1.created, wf1.title, wf2.id, wf2.created, wf2.title from worksheet_forms wf1 join worksheet_forms wf2 on max( wf1.id ) = wf2.id where wf1.company_id = '000002' group by wf1.generated_id </code></pre> <p>But I'm getting an error: </p> <pre><code>MySQL said: #1111 - Invalid use of group function </code></pre> <p>What I'm trying to do is to get the title of the latest record of a group in the table.</p> <p>EDIT:</p> <pre><code>+-----------------------------------------------------------------------+ | id | generated_id | company_id | title | created | +-----------------------------------------------------------------------+ | 1 | aaajdfie34343 | 000002 | ws1 | 2012-02-08 17:27:30 | | 2 | aaajdfie34343 | 000002 | ws2 | 2012-02-09 17:27:30 | | 3 | aaajdfie34343 | 000002 | ws3 | 2012-02-10 17:27:30 | | 4 | bbbjdfie34343 | 000002 | ws4 | 2012-02-11 17:27:30 | | 5 | bbbjdfie34343 | 000002 | ws5 | 2012-02-12 17:27:30 | | 6 | bbbjdfie34343 | 000002 | ws6 | 2012-02-13 17:27:30 | | 7 | bbbjdfie34343 | 000002 | ws7 | 2012-02-14 17:27:30 | | 8 | cccjdfie34343 | 000002 | ws8 | 2012-02-15 17:27:30 | | 9 | cccjdfie34343 | 000002 | ws9 | 2012-02-16 17:27:30 | +-----------------------------------------------------------------------+ </code></pre> <p>Now, I want a result:</p> <pre><code>+-----------------------------------------------------------------------+ | id | generated_id | company_id | title | created | +-----------------------------------------------------------------------+ | 3 | aaajdfie34343 | 000002 | ws3 | 2012-02-10 17:27:30 | | 7 | bbbjdfie34343 | 000002 | ws7 | 2012-02-14 17:27:30 | | 9 | cccjdfie34343 | 000002 | ws9 | 2012-02-16 17:27:30 | +-----------------------------------------------------------------------+ </code></pre>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USMosty Mostacho
    1. USMiD
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. CORemove the group by.
      singulars
      1. POGet title of the latest record on a group
      1. USNaveen Kumar
    2. CO@MiD It would be easier to understand the problem if you post your current data and your expected result in a tabular format.
      singulars
      1. POGet title of the latest record on a group
      1. USMosty Mostacho
    3. COshare your table data, then we can further help you
      singulars
      1. POGet title of the latest record on a group
      1. USAnkit Sharma
 

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