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You have to condition the update statement with the same parameters as
the selection value.
Update drvrmstrpf a
Set a.status=
(select 'C' from locnmstrpf b
Where a.locn = b.locn and b.prdend=20100211)
Where a.locn in(select locn from locnmstrpf where prdend=20100211)
-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Tom
Sent: Thursday, February 18, 2010 10:46 AM
To: 'Midrange Systems Technical Discussion'
Subject: SQL question:
I have 2 tables: DRVRMSTRPF, LOCNMSTRPF.
DRVRMSTRPF fields: LOCN, DRVR, STATUS
LOCNMSTRPF fields: LOCN, PRDEND, STATUS
All drvrmstrpf.locn values are found in locnmstrpf, but there may be
some
locnmstrpf entries for which there are no corresponding entries in
drvrmstrpf.
I have a request from a user: update the drvrmstrpf status code to 'C'
for
all locnmstrpf records with PRDEND value of 20100211.
I've tried the following SQL, but getting an error ("Null values not
allowed
in column or variable STATUS"):
Update drvrmstrpf a
Set a.status=
(select 'C' from locnmstrpf b
Where a.locn = b.locn and b.prdend=20100211)
What am I missing?
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