Store result from exec (@sqlquery)

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SQL-Server-2008R2

Hello friends...

I have following query.

SQL

declare @query varchar(500)
set @query='select * from openquery(abc,''select Avg(value) from ihrawdata'')'

declare @result varchar(20)
exec (@query)

this code is working perfectly. but when i tried following

SQL

set @result=exec(@query)

it issued an error as follows
invalid syntax near exec.
plz help

Posted 3-Sep-14 0:20am

TAUSEEF KALDANE

Updated 3-Sep-14 0:23am

Kornfeld Eliyahu Peter

v3

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Kornfeld Eliyahu Peter 3-Sep-14 6:27am

You should use sp_executesql - http://msdn.microsoft.com/en-us/library/ms188001.aspx

TAUSEEF KALDANE 3-Sep-14 6:29am

i had used sp_executesql but it didn't work.

Rich.Edwards 3-Sep-14 6:29am

You can't stored the results returned from the query in a varchar(20)

What were you planning on using @result for?

TAUSEEF KALDANE 3-Sep-14 6:38am

i want the value for further calculations.

3 solutions

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OriginalGriff · Answer 1 · 2014-09-03T00:33:00

Solution 2

EXEC does not return a value: so you cannot use it to "fetch" a value and store it for later.
You would need to use sp_executesql instead: http://stackoverflow.com/questions/5439005/set-var-exec-storedprocedure[^]

Posted 3-Sep-14 0:33am

OriginalGriff

Comments

TAUSEEF KALDANE 3-Sep-14 6:44am

sir,
i can't use sp_executesql due to open query. it started throwing errors

sankarsan parida · Answer 2 · 2014-09-03T02:29:00

See if you want to set the exec value to your declare variable then you have to use sp_executesql on the following way

declare @query nvarchar(500)
declare @result  varchar(20) 
set @query=' select  @cnt=Avg(value) from ihrawdata' 
--Set the exec value to your declare variable
EXECUTE sp_executesql @query, N'@avg varchar(20) OUTPUT', @avg=@result OUTPUT
Select @result

**Dnyaneshwar**@Pune · Answer 3 · 2014-09-03T01:17:00

Solution 3

exec does not return a single value , it returns a tabular format data , so you can not store it into the varchar type variable

Posted 3-Sep-14 1:17am

Dnyaneshwar@Pune