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Trouble with "IN"

Author

Topic

dave.bodenheimer
Starting Member

5 Posts

Posted - 2013-05-04 : 13:08:20

I am creating a script where I am querying a table using the IN keyword.
When I type the data inside the IN clause, the query performs as i should. But when I create a variable with the exact same data in it and use the variable inside the IN clause, it does not. Any Ideas???

Here is the query that works
SELECT * FROM scpcommandeventlog WHERE MESSAGEid = 3 AND PARAM1 IN('11416407','11416410','11416413','11416417','11416419','11416421','11416423','11416427','11416432','11416433','11416434','11416435','11416438','11416443','11416446','11416448','11416451','11416454','11416458','11416462')

here is the query that doesn't
SELECT * FROM scpcommandeventlog WHERE MESSAGEid = 3 AND PARAM1 IN(@list)

Here is the query that populates the @list variable

DECLARE @List varchar(max)

SELECT @List = isnull(@List + ',', '') + '''' + cast(itemid as varchar) + ''''
FROM dbo.ItemList
WHERE sortid LIKE @sortid

chadmat
The Chadinator

1974 Posts

Posted - 2013-05-04 : 13:56:39

Because you can't do that. You would need to create the entire query as a string and execute it.

-Chad

dave.bodenheimer
Starting Member

5 Posts

Posted - 2013-05-04 : 14:10:38

Thanks Chad, while waiting for an answer i did that and it works great.

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2013-05-06 : 02:09:16

you can do this though but it may not perform well for large datasets


SELECT * FROM scpcommandeventlog WHERE MESSAGEid = 3 AND ',' + @list + ',' LIKE '%,' + CAST(PARAM1  AS varchar(10)) + ',%'

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Bustaz Kool
Master Smack Fu Yak Hacker

1834 Posts

Posted - 2013-05-10 : 18:05:42

You could also split the data in your variable and return it as a table as part of your IN clause. There are a variety of split functions to be found but the best I'[ve run across is Jeff Moden's. It can be found here: http://www.sqlservercentral.com/articles/Tally+Table/72993/

HTH

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