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SQL Statement help

Posted on 2004-08-10
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Last Modified: 2010-04-17
Please review this previous question for further info:
http://www.experts-exchange.com/Programming/Q_21071172.html

That worked great.  The problem now is some of my results are a little off.  The AvgAmt, MaxAmt, and MinAmt are off.  They should not include in the records in the average that the "Num" field is 0.  Currently they do.  

I tried adding this to the statement for the AvgAmt field but it is not right even though it executes fine:

Avg(Case WHEN Bids > 0 THEN Amt Else 0 End) as 'TestAmt'

I get $17.59 when it should be $138.37

PLEASE HELP!!!  Thanks in advance.


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Question by:tw_chase
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Expert Comment

by:Jaime Olivares
ID: 11764883
Why not to use where clause?
Avg(Amt) as 'TestAmt' where Bids<>0
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Author Comment

by:tw_chase
ID: 11764930
Doesn't work in SQL Server 2000.  Thanks for the try though
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Accepted Solution

by:
brandonh6k earned 500 total points
ID: 11766110
Replace your zero with a null.  Average doesn't count null values.

So you should have this...

Avg(Case WHEN Bids > 0 THEN Amt Else null End) as 'TestAmt'

Same thing applies to the Min and Max functions.

HTH,

Brandon
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Author Comment

by:tw_chase
ID: 11766722
Brandon,

Worked great!

Thanks
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