RE: BIRT apparently doesn't like UDTFs, but likes stored procedures that return a result set. But how?

["Richard Casey" <casey_r@xxxxxxxxxxxxxxxx>]

James,

To return a result set from a SQL stored procedure, you need to:

1) Define your procedure as returning a result set
2) Declare a cursor with the desired SELECT statement
3) Open that cursor
4) Set result sets and return

Here is a quick example:
----------------------------------
CREATE PROCEDURE myproc
RESULT SETS 1
LANGUAGE SQL

BEGIN

DECLARE report CURSOR FOR
SELECT field1, field2, ...
FROM   file
WHERE  <desired conditions>
ORDER BY <desired key fields>;

OPEN report;

SET RESULT SETS CURSOR report;

END;

----------------------------------

It has been a while since I've worked with BIRT, but I do have java programs
using JDBC and JT400 to deal with results sets returned from similar stored 
procedures and they work just fine. You can also define the procedure to
accept
parameters and use those parameters in your SELECT statement.

Hope this helps!

Richard



-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx [mailto:java400-l-bounces@xxxxxxxxxxxx]
On Behalf Of James Lampert
Sent: Tuesday, April 19, 2011 1:19 PM
To: Java Programming on and around the IBM i
Subject: BIRT apparently doesn't like UDTFs, but likes stored procedures
that return a result set. But how?

BIRT (which uses JDBC and JT400) doesn't appear to like UDTFs. But it 
seems to like Stored Procedures that return a result set.

Most of the examples I've seen simply have a SELECT (without an INTO 
clause) in the stored procedure. But DB2/400 doesn't seem to like 
SELECTS without INTO clauses in stored procedures.

Then there is at least one example I've seen that uses a cursor as a 
parameter, but that doesn't look very promising for DB2/400, either.

Can somebody point me in the right direction here?

--
JHHL