Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Usenet -> c.d.o.server -> Re: compressing primary key indexes

Re: compressing primary key indexes

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Fri, 7 Sep 2001 18:57:33 +0100
Message-ID: <999885509.9980.0.nnrp-08.9e984b29@news.demon.co.uk>

I haven't seen that behaviour at all,
and I have built primary keys on partitioned tables in this way - although not in on that specific version on that specific platform.

Were there any other special circumstances, and is this registered as a bug yet ?

(NB I recall there was a bug at some stage showing this behaviour, but that related to PKs that had been built with the reverse option).

--
Jonathan Lewis
http://www.jlcomp.demon.co.uk

Host to The Co-Operative Oracle Users' FAQ
http://www.jlcomp.demon.co.uk/faq/ind_faq.html

Author of:
Practical Oracle 8i: Building Efficient Databases

Screen saver or Life saver: http://www.ud.com
Use spare CPU to assist in cancer research.

Matthias Gresz wrote in message ...

>In article <999811332.14741.0.nnrp-08.9e984b29_at_news.demon.co.uk>, Jonathan
Lewis
>says...
>>
>>
>>When all else fails, create the index, then
>>add the constraint. There is no inherent
>>reason why you can't do what you want
>>to do - probably some minor detail of
>>irritating syntax.
>>
>>BTW Given that this is a very large table,
>>you may want to create the index 'unusable'
>>then rebuild it partition by partition.
>>
>>--
>
>You sure that this works? With 8.1.6.3.1 on NT I encountered that creating
a PK
>over fields where an index already exists leads to the following behaviour:
>
>When chekcing FK consistency, the server uses the prebuild index. When
>inserting a new row the prebuild index isn't updated. The result is that
for all
>newly inserted items, oracle refuses to let you insert chield records in a
>chield table.
>
>
>Matthias
>
>
Received on Fri Sep 07 2001 - 12:57:33 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US