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How to select first non Null value from multiple fields


How to select first non Null value from multiple fields

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mario17
mario17
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Group: General Forum Members
Points: 1438 Visits: 683
Hi,
what is the best way to select fist non Null value from mutliple fiels K1,.... K3, I heard about case, but still can't figure out how to use single case fro multiple columns?

Appreciate your help.
Mario


select * from T01-- source table::::
PK K1 K2 K3
2 Bravo
3 Charlie
1 Alpha
48 Whiskey

--wanted output:
select PK, case (.....) from T01
PK K
1 Alpha
2 Bravo
3 Charlie
48 Whiskey


Sean Lange
Sean Lange
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Group: General Forum Members
Points: 63705 Visits: 17974
Look at coalesce. That is exactly what it is intended for.

http://msdn.microsoft.com/en-us/library/ms190349.aspx

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