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kemi2299
Starting Member

United Kingdom
41 Posts
Posted - 05/13/2008 :  07:35:04  Show Profile  Reply with Quote
hi,

just a quick question, can null values be count?

SwePeso
Patron Saint of Lost Yaks

Sweden
29138 Posts
Posted - 05/13/2008 :  07:36:55  Show Profile  Visit SwePeso's Homepage  Reply with Quote
Yes.

1) COUNT(*)
2) SUM(CASE WHEN Col1 IS NULL THEN 1 ELSE 0 END)


E 12°55'05.25"
N 56°04'39.16"
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kemi2299
Starting Member

United Kingdom
41 Posts
Posted - 05/13/2008 :  07:53:47  Show Profile  Reply with Quote
hi,

what if i want to exclude the null values
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soorajtnpki
Posting Yak Master

India
231 Posts
Posted - 05/13/2008 :  07:58:21  Show Profile  Reply with Quote
HI
JUST USE
SELECT * FROM TABLE_NAME WHERE FIELD_NAME IS NOT NULL


OK tanx...
Edited by - soorajtnpki on 05/13/2008 07:59:31
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visakh16
Very Important crosS Applying yaK Herder

India
47189 Posts
Posted - 05/13/2008 :  11:15:25  Show Profile  Reply with Quote
quote:
Originally posted by kemi2299

hi,

what if i want to exclude the null values

if you want count of non null values:-
SUM(CASE WHEN Col1 IS NOT NULL THEN 1 ELSE 0 END)

or

COUNT(Col1)
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