RE: CREATE INDEX and name only some columns -- MIDRANGE-L

Tommy,

I didn't have any errors during my test.

I was using an internal DS on v5r2.

The system happily ignored the additional column.

Rob mentions that at leats for external DSs, the system used to happily ignores the additional columns
with an external DS also. But used to was the keyword.

Perhaps internal DS behavior was changed also?

Charles

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of
Tommy.Holden@xxxxxxxxxxxxxxxxxxxxx
Sent: Wednesday, September 12, 2007 10:42 AM
To: Midrange Systems Technical Discussion
Subject: RE: CREATE INDEX and name only some columns

if you are using select * and the file changes(column
addition, etc.) you'll like have to recompile...especially if
you are using internal DSes.
with external DS based on the file you are selecting from a
recompile is all that is necessary. with internal DS you'll
have to add the new column to the DS or you'll get some SQL
errors....

Thanks,
Tommy Holden

"Walden H. Leverich" <WaldenL@xxxxxxxxxxxxxxx> Sent by:
midrange-l-bounces@xxxxxxxxxxxx
09/12/2007 09:19 AM
Please respond to
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>

To
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Subject
RE: CREATE INDEX and name only some columns

So I've learned that SELECT * doesn't have to mean a

recompile, but I
think I'll still continue

specifying specific columns names in most cases.

I agree it's good practice to select only the columns you need, just
wanted to make sure I'd not missed something else. Thanks for testing
it.

-Walden

--
Walden H Leverich III
Tech Software
(516) 627-3800 x3051
WaldenL@xxxxxxxxxxxxxxx
http://www.TechSoftInc.com

Quiquid latine dictum sit altum viditur.
(Whatever is said in Latin seems profound.)

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