Dynamic sql

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SET @SQL='select @parm1= COUNT(*) from '+@Database+'.dbo.FactPersonSnapshot f group by f.EnrollmentMonthDateKey order by f.EnrollmentMonthDateKey '

exec sp_executesql @SQL, @params = N'@parm1 int OUTPUT', @parm1=@parm1 OUTPUT
select @parm1

This query has to return multiple rows. Instead it is just outputting the first row. Could anyone pls help.

Thanks vs0523

Answer 1

0

It looks like you are after a count for each month. Because @parm1 is an int, it can't hold multiple counts. You'll need to store your results in a table that can hold the rows.

Try something like this (I've used sys.all_objects so anybody can run the example, but you can just put your query back in there):

DECLARE @sql NVARCHAR(4000)

CREATE TABLE #enrollmentCounts (enrollmentCount int, enrollmentDateKey sysname)

SET @sql = 'insert into #enrollmentCounts select COUNT(*), type from sys.all_objects group by type'
exec sp_executesql @sql

SELECT * FROM #enrollmentCounts

DROP TABLE #enrollmentCounts

answered Jul 09 '12 at 07:07 PM

KenJ
12.4k ● 2 ● 10

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Answer 2

0

The query is returning the count of rows from the table - this is a one row, one column output. Plus you are then setting the value to an integer valued output parameter.

What multiple rows are you expecting?

answered Jul 09 '12 at 06:55 PM

Kev Riley ♦♦
46.1k ● 39 ● 43 ● 69

The query returns count of rows for each month(it is a group by month).This is the query that I tried to modify as above:

SET @SQL='select EnrollmentMonthDateKey,COUNT(*) as MemberCount from '+@Database+'.dbo.FactPersonSnapshot f group by f.EnrollmentMonthDateKey order by f.EnrollmentMonthDateKey '

EXEC (@SQL)

I was able to get multiple rows with this. But when I am assigning this to variable it is just returning the first row.

Jul 09 '12 at 07:07 PM vs0523

Sorry - was speed reading on my phone! The reason still stands regarding the single variable though. Ken has shown a way of getting multiple records out.

Jul 09 '12 at 08:06 PM Kev Riley ♦♦

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