RE: Indexing a CLOB
- From: "Ben Wittmeier" <Ben.Wittmeier@xxxxxxxxx>
- To: "Niall Litchfield" <niall.litchfield@xxxxxxxxx>
- Date: Thu, 12 Feb 2009 11:08:55 -0700
I was passing this question on from someone else, so I'm not sure where
the performance problem is or what the developer is doing with the clob.
I'll pass back all comments and questions and see where it goes.
Thanks for the response.
________________________________
From: Niall Litchfield [mailto:niall.litchfield@xxxxxxxxx]
Sent: Thursday, February 12, 2009 10:38 AM
To: Ben Wittmeier
Cc: oracle-l@xxxxxxxxxxxxx
Subject: Re: Indexing a CLOB
what's he doing to this that is slow? insert/update/select ?
On Thu, Feb 12, 2009 at 4:40 PM, Ben Wittmeier <Ben.Wittmeier@xxxxxxxxx>
wrote:
We need to increase the size of a data field beyond its
varchar2(4000)
definition because 4000 characters isn't large enough. The
field is
currently not indexed. The developer has done some initial
testing with
CLOB's but found the performance with the CLOB seemed slow so
he's
wondering about an index on the field. Though he also said the
slow
performance may be a result of the way he's doing things with
the CLOB
(as this is new to him). Are there any options available to
index the
CLOB field to improve performance? Oracle mentions using a
CONTEXT
index....
Does anyone have any thoughts on indexing CLOB fields?
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