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Selecting the Max
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Information générale
Forum:
Visual FoxPro
Catégorie:
Codage, syntaxe et commandes
Divers
Thread ID:
01132678
Message ID:
01132689
Vues:
12
That did the trick. Thanks,

Richard


>>I feel like I've done this before but for the life of me I can't remember how I did it:
>>
>>Using just SQL Select how can I get the items with the Max count.
>>
>>Source table
>>
>>ColumnCode1  ColumnCode2  ColumnCode3   CodeCount
>>Code1          Code2         code3         3
>>Code1          Code2         Code4         2
>>
>>
>>What I'm trying to get to is for each identical ColumnCode1, ColumnCode2 I want to see only the ColumnCode3 with the most CodeCount.
>>
>>Something like this:
>>
>>ColumnCode1  ColumnCode2  ColumnCode3
>>Code1          Code2         code3
>>
>>
>>Any ideas?
>>
>>Richard
>
>
>SELECT MyTable.ColumnCode1,MyTable.ColumnCode2, MyTable.ColumnCode3, MyTable.CodeCount;
>FROM MyTable;
>INNER JOIN (SELECT ColumnCode1,ColumnCode2, MAX(CodeCount) AS CodeCount FROM MyTable GROUP BY ColumnCode1,ColumnCode2) Tbl1;
>      ON MyTable.ColumnCode1 = Tbl1.ColumnCode1 AND;
>         MyTable.ColumnCode2 = Tbl1.ColumnCode2 AND;
>         MyTable.CodeCount   = Tbl1.CodeCount;
>INTO CURSOR crsTest
>BROW NORMAL
>
>(not tested)
State of Florida, DCF
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