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SQL where clause for pulling latest date record.
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À
03/04/2006 14:13:34
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Divers
Thread ID:
01110024
Message ID:
01110029
Vues:
23
Try
SELECT * FROM mytable mt1
 WHERE NOT EXISTS (SELECT * FROM mytable mt2 
             WHERE mt2.Empid = mt1.Empid AND mt2.PostDate > mt1.PostDate)
>
>I have data in a file with employee, postdate, and accrued vacation. There is other data in the record that is irrelevent to this query.
>
>The data looks like this:
>Empid      PostDate        Hours
>AAB01      01/02/05          40
>AAB01      02/02/05          40
>AAB01      03/02/05          40
>AAB01      04/02/05          80
>AAB01      05/02/05          80
>BBB01      01/06/05          30
>BBB01      02/06/05          30
>BBB01      03/06/05          40
>BBB01      04/06/05          20
>BBB01      05/06/05          20
>For my query I always need to get the latest postDate for each employee along with the hours.
>
>So the result I'm looking for given this data is:
>
>AAB01 05/02/05 80
>BBB01 05/06/05 20
>
>What would be the best way to handle this type of query?
>
>
>
--sb--
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