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Query SYSFUNCTIONS to see if the function is defined...

HTH,
Charles

On Wed, Dec 14, 2011 at 2:39 PM, Charles Wilt <charles.wilt@xxxxxxxxx> wrote:
Upgrade to 7.1 and use CREATE OR REPLACE FUNCTION....  :)

Charles

On Wed, Dec 14, 2011 at 2:20 PM, James Lampert <jamesl@xxxxxxxxxxxxxxxxx> wrote:
In connection with several SQL VIEWs added to our CRM product as the
"New Data Access Layer" (mainly for BIRT at this point), we create
user-defined functions, by generating (from an RPG program) and
executing (via RUNSQLSTM) an SQL script.

At present, the RPG program decides whether or not to begin the script
with a DROP FUNCTION, by checking whether the function's *SRVPGM exists.

Unfortunately, if function was already created, and the *SRVPGM for the
function has been deleted without doing a DROP FUNCTION, no DROP
FUNCTION is generated, and the CREATE FUNCTION fails.

Can somebody who's more familiar with SQL suggest a less fragile way of
unconditionally creating (or re-creating) the function and its
underlying *SRVPGM, one that won't break under the described conditions?

--
JHHL
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