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Null Problem

Author

Topic

mike1973
Starting Member

46 Posts

Posted - 2011-11-15 : 05:06:43

Hello friends,

i have this query it should return the max value for the billnumber

SELECT MAX(BillNUmber) as MAXNUBMR
FROM Bills
WHERE ClientID=@ClientID and Hidden=0

the problem is how to i replace the returned NULL value with a 0?

Thanks

madhivanan
Premature Yak Congratulator

22864 Posts

Posted - 2011-11-15 : 05:12:48

SELECT ISNULL(MAX(BillNUmber),0) as MAXNUBMR
FROM Bills
WHERE ClientID=@ClientID and Hidden=0

Madhivanan

Failing to plan is Planning to fail

Lamprey
Master Smack Fu Yak Hacker

4614 Posts

Posted - 2011-11-15 : 10:54:13

As Madhivanan has shown you can use the ISNULL function. There is also the COALESCE function, which I beleive is ANSI 99 compliant, if that matters:

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

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2011-11-15 : 11:02:43

see the comparison details here

http://beyondrelational.com/blogs/madhivanan/archive/2007/10/04/isnull-or-coalesce.aspx

------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/

DonAtWork
Master Smack Fu Yak Hacker

2167 Posts

Posted - 2011-11-15 : 14:22:02

You can
SELECT ISNULL(MAX(BillNUmber),0) as MAXNUBMR
FROM Bills
WHERE ClientID=@ClientID and Hidden=0

or you can
As Madhivanan has shown you can use the ISNULL function. There is also the COALESCE function, which I beleive is ANSI 99 compliant, if that matters:

please mark this answer as accepted if it helped you!

(yea, i miss the guy, just picking up the slack

)

http://weblogs.sqlteam.com/jeffs/archive/2008/05/13/question-needed-not-answer.aspx
How to ask: http://weblogs.sqlteam.com/brettk/archive/2005/05/25/5276.aspx
For ultra basic questions, follow these links.
http://www.sql-tutorial.net/
http://www.firstsql.com/tutor.htm
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