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What to use instead of _tally for SUM() SQL Select?
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À
29/11/2005 10:55:37
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 9
Divers
Thread ID:
01072776
Message ID:
01072866
Vues:
18
>
>because SUM() doesn't count records match the WHERE clause:
>
>CREATE CURSOR test (item I NULL DEFAULT NULL)
>APPEND BLANK
>SELECT	SUM(ITEM) AS SUM;
>	,	COUNT(*) AS MATCH_COUNT;
>	,	COUNT(ITEM) AS NOT_NULL_ITEM;
>FROM TEST WHERE .T.
>
Thank you for illustrating the point.
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham
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