C# OdbcDataReader storedproc call with params returns no data

Question

I think there is something trivial that I am overlooking where with this issue, I am calling a stored proc, I know the call is made as I can see it in profiler, and when I run the stored proc from query analyzer it does return records as intended. Problem is when I call it from C# code, execution is happening but no results are retrieved.

What my debugging has revealed that if I have a code such as if OBJECT_ID ('tempdb..##base') IS NOT NULL drop table ##base in the stored procedure, it would not return any data using OdbcDataReader, otherwise it would return data, Can some one tell me why this is?

Thanks

Answer 1

Please keep in mind that the results returned to .NET are those of the LAST statement that issued a SELECT in the procedure. If the OBJECT_ID query is AFTER the SELECT statement you want returning data then you're probably not going to get results.

However, I would need to see your stored procedures to tell you for sure.

SET QUOTED_IDENTIFIER ON 
GO

SET ANSI_NULLS ON 
GO

ALTER         PROCEDURE dbo.proc_myStoredProc
AS

if OBJECT_ID ('tempdb..##base') IS NOT NULL drop table ##base
SELECT * FROM mytable
GO

SET QUOTED_IDENTIFIER OFF 
GO

SET ANSI_NULLS ON 
GO

If I remove the drop table statement above I get the data otherwise no

HOW TO CHECK FOR AND DROP A TEMP TABLE

http://blog.sqlauthority.com/2009/05/17/sql-server-how-to-drop-temp-table-check-existence-of-temp-table/