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Count null value
Message
 
 
À
27/01/2009 08:49:21
Information générale
Forum:
Visual FoxPro
Catégorie:
Base de données, Tables, Vues, Index et syntaxe SQL
Versions des environnements
Visual FoxPro:
VFP 9 SP2
OS:
Windows XP SP2
Network:
Windows XP
Database:
Visual FoxPro
Application:
Desktop
Divers
Thread ID:
01377290
Message ID:
01377395
Vues:
12
>>Hi all,
>>How can I count the fields with .NULL value?
>>Im using an sql with "'count" but always getting the result 0.
>>thanks
>
>
>SELECT COUNT(*) as countnotnull
>,   COUNT(NVL(NULLABLEFIELD,.T.)) as countnullalso;
>,   COUNT(ICASE(ISNULL(NULLABLEFIELD),.T.)) AS countnullonly     FROM ...
>
Incorrect.

>
>SELECT COUNT(*) as countAll
>,   COUNT(NVL(NULLABLEFIELD,.T.)) as countnullalso;
>,   COUNT(ICASE(ISNULL(NULLABLEFIELD),.T.)) AS countnullonly     FROM ...
>
See http://forums.asp.net/p/1374351/2890690.aspx#2890690
If it's not broken, fix it until it is.


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