ca.portal.admin

Re:QSAM or PREFETCH - pros and cons

Discussion created by ca.portal.admin on Feb 7, 2008
Hi gang,

Your posts on the topic ""Local mode update and fastaccess"" leads me to
another question:

When to use IDMSQSAM vs. when to use PREFETCH.

I've used both in a limited way, and years ago, at another company,
switched to PREFETCH because QSAM didn't seem to do much for me while
PREFETCH did (after it came out.)

Lutz's comment that QSAM only works on one file (the first file in a
multi-file area?) kind of strikes me as why I wasn't overly impressed
like most of you are with QSAM.

In this shop, we have numerous huge areas (95% of all areas are 1
rec/area) and a home-grown program that unloads records via full track
reads. As a result, the only place QSAM is used is in UNLOAD/RELOAD
jobs.

Dick

Richard Pierce
(617) 973-8911
richard.pierce@state.ma.us

Remember, the answer to all questions is a reply, but a reply is not
necessarily an answer.
"
IDMS Public Discussion Forum
IDMS-L@LISTSERV.IUASSN.COM
SMTP
IDMS-L@LISTSERV.IUASSN.COM
IDMS-L@LISTSERV.IUASSN.COM
SMTP








Normal

Normal
Re: Writing to a queue from a COBOL subprogram
"I stand corrected - I would not be game to argue with either Pete or the
manual ;-) Cheers - Gary

Gary Cherlet
Justice Technology Services
Department of Justice, SA Government
Telephone +61 (0)8 8226 5199
Facsimile +61 (0)8 8226 5311
Mobile +61 (0)41 333 1613
MailTo:cherlet.gary@saugov.sa.gov.au

This e-mail message and any attachments are qualified as follows:
Addressing: If you have received this e-mail in error, please advise by
reply e-mail to the sender. Please also destroy the original
transmission and its contents. Confidentiality: This e-mail may contain
confidential information which also may be legally privileged. Only the
intended recipient(s) may access, use, distribute or copy this e-mail.
Individual Views: Unless otherwise indicated, the views expressed are
those of the sender, not Justice Technology Services. Computer Viruses:
It is the recipient's responsibility to check the e-mail and any
attached files for viruses.

Outcomes