SQL Update Performance

I have an update that I am trying to do on V5R2:



UPDATE ADDRINP ad1

SET ad1.Addr1 = 'this is a test'

WHERE exists(

select * from contrcp ctr where

ctr.cinact = 'CC01' and

ctr.ctradr = ad1.akey)



This statement takes forever to run because of the join order the optimizer is choosing. ADDRINP is
in Join position 1 and CONTRCP is in join position 2. This is most likely because I am updating
ADDRINP. Only problem is that there are 3,000,000 records in ADDRINP, and putting it in join position
1 forces the whole file to be read in order to pick out 6 records to be processed. Can anyone think
of a way to force CONTRCP to join position 1?



Mark Murphy

Star Base Consulting, Inc.

e: murphym@xxxxxxxxxx




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