Error with sequence containers and global temp variables

Question

I have a process which does the following -
1. Inside a sequence container an execute sql task has a stored proc which inserts result set into a global temp table.
2. DFT after the execute sql uses that global temp as a source and the final destinatoion is a oledb destination.
I have done the following also -
1. Set the connection manager property RetainSameConnection  = true
2. Delay validation of dft to true
3. Validatexternalmetadata of source inside dft to false.
The first task inside the sequence container works fine(execute sql task),but it fails in the dft with errors as -
[DST xyz[576]] Error: SSIS Error Code DTS_E_OLEDBERROR.  An OLE DB error has occurred. Error code: 0x80040E37.
An OLE DB record is available.  Source: "Microsoft SQL Server Native Client 10.0"  Hresult: 0x80040E37  Description: "Invalid object name 'abcd'.".
[DST xyz[576]] Error: Failed to open a fastload rowset for "[abcd]". Check that the object exists in the database.
[SSIS.Pipeline] Error: component "DST xyz" (576) failed the pre-execute phase and returned error code 0xC0202040.Could anyone guide me with what i am doing wrong or ignorinf some property.Thanks

Answer 1

Hi app087,
Based on your description, I create a sample package in my environment, and I can reproduce the issue. The following steps are for your references:
Create a stored procedure with the query below in my environment:
create procedure PTitles
as
DROP TABLE ##T123;
select * INTO ##T123 from [table];
Drag a Execute SQL Task and a Data Flow Task to a Sequence Container.
In the Execute SQL Task, select the database of [table] table as the Connection and type the query below as SQLStatement:
EXEC PTitles
In the Data Flow Task, select servername.tempdb as the connection manager for the OLE DB Source.
Map columns correctly in OLE DB Destination.
Execute the Execute SQL Task at the first time, it works fine. Then execute the Data Flow Task, it fails. Then execute the Execute SQL Task again, it also fails with the error below:
Execute SQL Task: Executing the query "EXEC PTitles" failed with the following error: "Cannot drop the table '##T123', because it does not exist or you do not have permission.".
Please execute the Execute SQL Task again to check whether your issue is the same scenario. As per my understanding, it seems that the query “EXEC PTitles” in Execute SQL Task doesn’t create the global temp table ##T123. To fix this issue, I modify the stored
procedure to like below, then the package can works very well.
ALTER procedure PTitles
as
IF OBJECT_ID('TEMPDB.DBO.##T123') IS NULL
SELECT * INTO ##T123 FROM [table];
TRUNCATE TABLE ##t123;
INSERT INTO ##T123 select * from [table];
Besides, as you finally did, we can modify the stored procedure as below, then directly use single Data Flow task that with the “EXEC PTitles” as SQL Command query in Source, then load the data to destination table to simplify the package.
ALTER procedure PTitles
as
SELECT * FROM [table];
If there are any other questions, please post the stored procedure you are using.
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support