getting values from sp_executesql

HI

It is something similar to this i am trying to do

declare @query nvarchar(500) ,
            @value int

set @query ='select count(*) from table_a'

i want to assign the count to @value  with sp_executesql

How can i do this

Thanks
justin_smithAsked:
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Louis01Commented:
Use the OUTPUT parameter. (Sample from SQL books online below.)
DECLARE @IntVariable int;
DECLARE @SQLString nvarchar(500);
DECLARE @ParmDefinition nvarchar(500);
DECLARE @max_title varchar(30);
 
SET @IntVariable = 197;
SET @SQLString = N'SELECT @max_titleOUT = max(Title) 
   FROM AdventureWorks.HumanResources.Employee
   WHERE ManagerID = @level';
SET @ParmDefinition = N'@level tinyint, @max_titleOUT varchar(30) OUTPUT';
 
EXECUTE sp_executesql @SQLString, @ParmDefinition, @level = @IntVariable, @max_titleOUT=@max_title OUTPUT;
SELECT @max_title;

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justin_smithAuthor Commented:
This is the best solution i got through EE ever.. it was so quick and spot on.. i really appreciate that
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
remarks: if you don't need dynamic sql, don't use dynamic sql!
but I guess that you simplified your example in that regards :)
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Query Syntax

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