RE: Update the first 1500 records that need updating

I think SJL's solution is correct - it would select the first 1500 rows
where the value of fielda = 'X', my statement would update the records
in the first 1500 rows where fielda = 'X' thus giving you fewer than
1500 updates.


John Arnold
(301) 354-2939


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of SJL
Sent: Tuesday, December 04, 2007 5:07 PM
To: RPG programming on the AS400 / iSeries
Subject: Re: Update the first 1500 records that need updating

This should work:

UPDATE FILEA F
SET FIELDA = 'N' where RRN(F) in

(
SELECT RRN(F) from FILEA F where FIELDA='X'
Fetch first 1500 rows only
)

- sjl

----- Original Message -----
From: "Alan Shore" <AlanShore@xxxxxxxx>
To: "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
Sent: Tuesday, December 04, 2007 3:23 PM
Subject: Update the first 1500 records that need updating

Hi everyone
(Hopefully) A quick sql question.
I have a simple SQL update
UPDATE FILEA SET FIELDA = 'N' WHERE FIELDA = 'X'

However there are thousands of records that will be updated. I only

need to

update the first 1500 of these records (no other selection criteria,

just

the first 1500)

Is this possible?
If so, how?

Thanks in advance



Alan Shore

NBTY, Inc
(631) 244-2000 ext. 5019
AShore@xxxxxxxx
"If you're going through Hell, keep going" - Winston Churchill
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