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À
11/04/2008 15:04:52
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Titre:
Versions des environnements
Visual FoxPro:
VFP 9 SP2
Divers
Thread ID:
01309981
Message ID:
01310021
Vues:
28
>>>>Bobby Jones 1
>>>>Jamie Lee 2
>>>>Terry Hatcher 3
>>>>
>>>
>>>If you're creating a VFP cursor, then you effectively get a RECNO() column without needing to have any sort of "IncrementThisValueByOne" column. Can you not just use that?
>>
>>No, it doesn't always start with 1 for each cursor.
>
>Hmm, set-oriented SQL is not always the best choice for row-oriented logic like this. You might be better off sticking with xBASE:
>
>m.lnOffset = < some integer value >
>
>SELECT ;
>  MyColumnOne ;
>  , MyColumnTwo ;
>  , CAST( 0 AS I ) AS IncColumn ;
>  ...
>  INTO CURSOR Output ;
>  ORDER BY ... ;
>  NOFILTER READWRITE
>
>SELECT Output
>REPLACE ALL ;
>  IncColumn WITH RECNO( "Output" ) + m.lnOffset ;
>  IN Output
>
Very simple with derived tables in VFP9 - see my reply to Jay.
If it's not broken, fix it until it is.


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