[ http://issues.apache.org/jira/browse/DERBY-272?page=all ]
Jean T. Anderson resolved DERBY-272:
------------------------------------
Resolution: Fixed
Committed Jeff's patch that provides more information about NULLIF in the Derby
documentation. Revision 170690.
> The description of the NULLIF function is incomplete.
> -----------------------------------------------------
>
> Key: DERBY-272
> URL: http://issues.apache.org/jira/browse/DERBY-272
> Project: Derby
> Type: Improvement
> Components: Documentation
> Versions: 10.0.2.1
> Reporter: Mamta A. Satoor
> Assignee: Jeff Levitt
> Priority: Trivial
> Attachments: derby272.zip
>
> I was just trying to go through JIRA entry Derby-7 - a bug about NULLIF and
> looked up Derby documentation on NULLIF and basically, there is not much.
> Came across Christian d'Heureuse's following posting on the same
> documentation issue and I thought I would enter a JIRA entry so we can fix
> the docs.
> http://mail-archives.apache.org/mod_mbox/db-derby-dev/200408.mbox/[EMAIL
> PROTECTED]
> NULLIF Function
> http://incubator.apache.org/derby/manuals/reference/sqlj66.html
> ("NULLIF and CASE expressions")
> The Description of the NULLIF function is incomplete.
> The definition in ISO 9075-2 could be used:
> NULLIF(V1,V2) is equivalent to the following:
> CASE WHEN V1=V2 THEN NULL ELSE V1 END
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