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Sql stored procedure help

Posted on 2008-06-26
3
Medium Priority
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Last Modified: 2010-03-20
hello experts,
I have the following stored procedure;-

SELECT *
FROM Records
WHERE
groupid = (@groupid)
and functionid LIKE (@functionid)

The thing is that sometimes, the query may not require to filter by groupid and functionid and will just need to do a sraight search like so;-

SELECT *
FROM Records

What's the best way to implement this...(and why?)

Many thanks
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Question by:claracruz
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3 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 200 total points
ID: 21874864
for @functionid, passing '%' as value would do it.
for @groupid, the sql would need to be changed, for example:
SELECT *
FROM Records
WHERE ( groupid = @groupid or @groupid is null) 
and functionid LIKE @functionid 

and pass @functionid = '%' and @groupid = NULL to return all records.

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LVL 4

Author Comment

by:claracruz
ID: 21875263
hi angellll,

Sorry, both are integer values so can't take null (well as far as I know anyways). what would be the replacement for this line;-
WHERE ( groupid = @groupid or @groupid is null)

where groupid is an integer
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LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 21875416
integer variables and column CAN take nulls.
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