RE: Sql - updating multiple records with a sequential value

Thanks Elvis,
2 questions.
Does qtemp/t1 have to exist? I get a T1 in qtemp not found.

Also, what is PARTITION? Is this a keyword? I couldn't find it in my
sql book. If not what is PARTITION

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Elvis Budimlic
Sent: Wednesday, April 23, 2008 2:20 PM
To: 'Midrange Systems Technical Discussion'
Subject: RE: Sql - updating multiple records with a sequential value


Mike, based on further fleshing out of your requirements, I believe this
ought to work:

UPDATE myFile a SET a.suffix =
CASE flag WHEN 'Y' THEN '00'
ELSE
(SELECT b.suffix
FROM (SELECT master, contract,
RIGHT(DIGITS(ROW_NUMBER()
OVER(PARTITION BY master
ORDER BY contract)),2)
AS suffix
FROM qtemp/t1
WHERE flag = 'N') b
WHERE a.master = b.master AND a.contract = b.contract)
END

Elvis

Celebrating 11-Years of SQL Performance Excellence on IBM i5/OS and
OS/400 www.centerfieldtechnology.com


-----Original Message-----
Subject: Sql - updating multiple records with a sequential value

I am adding some new fields to a file. The file containts a master
contract#, contract# and (new) contract suffix

MASTER CONTRACT MASTER Flag SUFFIX
200300022 Y 00
200300022 200500120 N
200300022 200500121 N
200300022 200600124 N

I want to be able to update the suffix with 01, 02, 03, etc for each
master contract that matches a contract

So if mastflg = 'y', update suffix(incrementing value) where contract =
master

Can I do this with SQL? I'm not sure how to make the suffix field
increment.

Thanks

Mike