ca.portal.admin

Re:question about set pointers

Discussion created by ca.portal.admin on Dec 15, 2009
If a record is defined as a member of an optional set with next and prior pointers, but does not belong to the set, should the record's pointers contain:
a) Zeroes.
b) The db-key of the record itself.
c) Other?

Kay Rozeboom
State of Iowa
Information Technology Enterprise
Department of Administrative Services
Telephone: 515.281.6139 Fax: 515.281.6137
Email: Kay.Rozeboom@Iowa.Gov

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Re: question about set pointers
"I believe its High values as stated below. You can validate that by
printing a page.
Paul Wood
IBM Global Services
Mainframe Databases, Modeling, Repository Tech. Lead

Home Office: (714) 633-4039
pawood@us.ibm.com



From:
Don Casey <donjcasey@COMCAST.NET>
To:
IDMS-L@LISTSERV.IUASSN.COM
Date:
12/15/2009 06:33 AM
Subject:
Re: question about set pointers
Sent by:
IDMS Public Discussion Forum <IDMS-L@LISTSERV.IUASSN.COM>



I vote 'c'; X'FFFFFFFF' (defined as a null pointer value).

Only the OWNER of an empty set has pointers that point to himself.

Zeroes, to my knowledge, is not a legal set pointer value, but may occur
in
certain weird cases of currency values (I dimly recall).

Don Casey
Principal Consultant
Run Right, LLC

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