× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.



It would appear (to me) that the SQL auto-increment soulution is by far the
best solution.  Management of the field, and its values, is handled by the
DBMS with less potential for error. Performance will far exceed that of a
trigger-based solution.

Eric DeLong
Sally Beauty Company
MIS-Project Manager (BSG)
940-898-7863 or ext. 1863



-----Original Message-----
From: Booth Martin [mailto:Booth@xxxxxxxxxxxx]
Sent: Friday, March 28, 2003 2:32 PM
To: rpg400-l@xxxxxxxxxxxx
Subject: RE: "Reference #"


mainly because if you use a sequential number you have to maintain it, back
it up, restore it, view it, etc.  Why bother?
   
---------------------------------------------------------
Booth Martin   http://www.MartinVT.com
Booth@xxxxxxxxxxxx
---------------------------------------------------------
 
-------Original Message-------
 
From: RPG programming on the AS400 / iSeries
Date: Friday, March 28, 2003 14:46:44
To: RPG programming on the AS400 / iSeries
Subject: RE: "Reference #"
 
What's the advantage of using a random number? It seems to me that a
sequential number will always be unique, and will certainly be faster to
generate.
 
Why the random number? Are you trying to prevent the user from being
able to guess what the number will be?
 
I agree with you about timestamps... they are not a good idea.
 
On Fri, 28 Mar 2003, Booth Martin wrote:
 
> There's no purpose served by using a sequential number except uniqueness.
> If you want uniqueness just go for a random number. The chances of a
random
> number duplicating are slim, and the delay to renumber in those few
> instances is a small delay indeed. Forget about using the timestamp for
> uniqueness. Its troublesone and buys you nothing.

_______________________________________________
This is the RPG programming on the AS400 / iSeries (RPG400-L) mailing list
To post a message email: RPG400-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/rpg400-l
or email: RPG400-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/rpg400-l.



As an Amazon Associate we earn from qualifying purchases.

This thread ...

Follow-Ups:

Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.