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" <[EMAIL PROTECTED]> 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 > [EMAIL PROTECTED] > > -- > Please see the official ORACLE-L FAQ: > http://www.orafaq.com > -- > Author: Carle, William T (Bill), ALCAS > INET: [EMAIL PROTECTED] > > Fat City Network Services -- 858-538-5051 > http://www.fatcity.com > San Diego, California -- Mailing list and web > hosting services > --------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an > E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of > 'ListGuru') and in > the message BODY, include a line containing: UNSUB > ORACLE-L > (or the name of mailing list you want to be removed > from). You may > also send the HELP command for other information > (like subscribing). ===== Connor McDonald http://www.oracledba.co.uk http://www.oaktable.net "Remember amateurs built the ark - Professionals built the Titanic" __________________________________________________ Do You Yahoo!? Everything you'll ever need on one web page from News and Sport to Email and Music Charts http://uk.my.yahoo.com -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: =?iso-8859-1?q?Connor=20McDonald?= INET: [EMAIL PROTECTED] Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
