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 Can I pass a list of values as a parameter?
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Yak Posting Veteran

89 Posts

Posted - 12/13/2012 :  11:57:05  Show Profile  Reply with Quote
Is it possible to do something like this:

exec sp_executesql N'select age from person where

age IN @agelist',

N'@agelist nvarchar(25),',@agelist=N'(40,41,42,43)'

Flowing Fount of Yak Knowledge

5155 Posts

Posted - 12/13/2012 :  12:24:24  Show Profile  Reply with Quote
No, it is not possible to do that except in the trivial case where you have just one entry in the comma-separated list.

Within the stored proc, you should split the comma-separated string into a virtual table and join to that table. There are string splitter functions available - an especially good one is here in Fig. 21: http://www.sqlservercentral.com/articles/Tally+Table/72993/ Copy that function, run it to install it and use it like in the examples on that page.

An alterative approach is to do something like the following:
   ','+@agelist+',' LIKE '%,'+CAST(age AS VARCHAR(8))+',%'
Splitting the comma-separated list is a better approach from a performance perspective.

There are other ways of passing arrays to a stored procedure - see Sommarskog's article here: http://www.sommarskog.se/arrays-in-sql.html
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