You could always consider something like OracleText to
assist with these kind of searches, but thats a big
step..
hth
connor
- "Carle, William T (Bill), ALCAS" <wcarle_at_att.com>
wrote: > Howdy,
>
> I have a table that has almost 2 million rows
> called eventqueueentry. The layout looks like this:
>
> Name Null?
> Type
> ----------------------------------------- --------
> ----------------------------
> EVENTID NOT NULL
> NUMBER(10)
> VER NOT NULL
> NUMBER(10)
> QUEUETYPE NOT NULL
> CHAR(16)
> PUBLISHER NOT NULL
> CHAR(16)
> CREATETIME NOT NULL
> DATE
> LASTREADTIME
> DATE
> REMOVETIME
> DATE
> CONTENTS NOT NULL
> VARCHAR2(4000)
>
> The users do a query that looks like this:
>
> SELECT EventId, QueueType, Publisher, CreateTime,
> LastReadTime, RemoveTime,
> Contents, Ver
> from
> EventQueueEntry where QueueType = 'CodeUpdate' AND
> Contents LIKE
> '%TrackingEventId=27668677%' ORDER BY EventId
>
> The queuetype field has only 3 different values. The
> value in the contents field is close to being unique
> (high cardinality) but, as you can see, they are
> picking off a value somewhere in the middle of a
> varchar2(4000) field. Understandably, their query is
> slow. Is there anything I can do with an index to
> speed this up?
>
>
> Bill Carle
> AT&T
> Database Administrator
> 816-995-3922
> wcarle_at_att.com
>
> --
> Please see the official ORACLE-L FAQ:
> http://www.orafaq.com
> --
> Author: Carle, William T (Bill), ALCAS
> INET: wcarle_at_att.com
>
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Received on Wed Oct 16 2002 - 04:23:31 CDT
