Question

Conditional Where Clause - SQL

Asked by: DEWebWorks

Hi, in my stored procedure, I am passing a boolean as a parameter. When the boolean is true, I need to return all rows for which one field HAS a value (is not null). When false, it should just return all (and ignore the field). The snippet below is what I have so far.

This here actually got me results when the boolean was true, but then doesn't return any results when false:
and ( CASE @hasSRIAUM
WHEN 1 THEN tblSalesDesk_Institution.SRIAUM
END is not null)

Am I missing something?

...
@hasSRIAUM bit = null,
...
SELECT
...
FROM tblSalesDesk_Institution
...
WHERE tblSalesDesk_Institution.institutionID IS NOT NULL
and (tblSalesDesk_Institution.Institution LIKE '%' + @Institution + '%' OR @institution IS NULL)
...
and (tblSalesDesk_Institution.CBIS = @CBIS OR @CBIS IS NULL)
and (tblSalesDesk_Institution.SRIAUM is
CASE WHEN @hasSRIAUM = 1 THEN
	not null
END
)
                                  
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Asked On
2009-10-16 at 07:07:59ID24818102
Tags

SQL T-SQL

Topics

Quickbooks Financial Software

,

SQL Query Syntax

,

SQL Server 2005

Participating Experts
2
Points
500
Comments
4

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Answers

 

by: pcelbaPosted on 2009-10-16 at 07:11:03ID: 25589721

Simply test the variable value and use OR operator:

and (@hasSRIAUM = 0 OR tblSalesDesk_Institution.SRIAUM is NOT NULL)
                                              
1:

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by: QuinnDesterPosted on 2009-10-16 at 07:13:15ID: 25589740

as its only a true flase query wouldnt it be easier and more efficient to use an if else statment on the boolean value.

 

by: DEWebWorksPosted on 2009-10-16 at 07:18:10ID: 31642104

Man I hate it when I overlook the obvious solution! Thanks a bunch!

 

by: pcelbaPosted on 2009-10-16 at 07:21:13ID: 25589813

You are welcome.

Even the CASE would work after adding ELSE part containing any not null value:

and ( CASE @hasSRIAUM
WHEN 1 THEN tblSalesDesk_Institution.SRIAUM ELSE 1
END is not null)

20120131-EE-VQP-002

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