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pazzy11
Posting Yak Master
145 Posts |
 Posted - 2007-12-12 : 06:11:55
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| If i want to use the sum function but some of the fields are NULLthe sum returns as NULL ..how can I avoid this ? |
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madhivanan
Premature Yak Congratulator
22864 Posts |
Posted - 2007-12-12 : 06:14:09
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| sum(coalesce(col1,0))+sum(coalesce(col2,0))+...MadhivananFailing to plan is Planning to fail |
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SwePeso
Patron Saint of Lost Yaks
30421 Posts |
Posted - 2007-12-12 : 06:20:22
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sum(coalesce(col1, 0) + coalesce(col2, 0) + ... )
E 12°55'05.25"N 56°04'39.16" |
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pazzy11
Posting Yak Master
145 Posts |
Posted - 2007-12-12 : 06:21:29
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| So [CODE]select a ,b,sum(c) as 'TOTAL'[/CODE]becomes [CODE]select a ,b,sum(coalesce(c,0)) as 'TOTAL'[/CODE]? |
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madhivanan
Premature Yak Congratulator
22864 Posts |
Posted - 2007-12-12 : 06:22:18
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shortcut of mine?  MadhivananFailing to plan is Planning to fail |
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pazzy11
Posting Yak Master
145 Posts |
Posted - 2007-12-12 : 06:23:53
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| yes but i was checking that is correct yes ? sum(coalesce(c,0)) as 'TOTAL' ?? |
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madhivanan
Premature Yak Congratulator
22864 Posts |
Posted - 2007-12-12 : 06:24:02
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quote:
Originally posted by pazzy11
So [CODE]select a ,b,sum(c) as 'TOTAL'[/CODE]becomes [CODE]select a ,b,sum(coalesce(c,0)) as 'TOTAL'[/CODE]?
If you sum only one column, by default NULL values are omittedMadhivananFailing to plan is Planning to fail |
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sum function ansd NULLS