RE: Oracle Text index question, somewhat urgent

From: Lord, David - CSG <David.Lord_at_hayscsg.com>
Date: Thu, 13 Jun 2002 00:58:35 -0800
Message-ID: <F001.0047CB97.20020613005835@fatcity.com>

I'm no expert, but yes - by default, text indexes are case-insensitive (in english at least). I believe its something to do with the Lexer preferences. The default value of the mixed_case attribute of the basic lexer object is NO.

HTH
David Lord

> -----Original Message-----
> From: Jonathan Gennick [mailto:listmail_at_gennick.com]
> Sent: 13 June 2002 05:33
> To: Multiple recipients of list ORACLE-L
> Subject: Oracle Text index question, somewhat urgent
>
>
> I need to ask a question of someone who understands Oracle Text
> indexes. So if you know Oracle Text, please read on.
>
> I was told that if I had a query such as the following:
>
> SELECT falls_name
> FROM waterfalls
> WHERE INSTR(UPPER(falls_directions),
> 'MACKINAC BRIDGE') <> 0;
>
> where falls_directions is a CLOB, that I can define a case-insensitive
> index using Oracle Text and then use CONTAINS to execute the query
> more efficiently:
>
> SELECT falls_name
> FROM waterfalls
> WHERE
> CONTAINS(falls_directions,'mackinac bridge') > 0;
>
> Is this correct? Is there such a thing as a case-insensitive index in
> Oracle Text? I did take a quick look at the Oracle Text manual, but
> this capability didn't leap out at me. Is "case-insensitive" the term
> Oracle Text uses? In any case, I need to verify whether what I've been
> told is correct.
>
> Jonathan Gennick --- Brighten the corner where you are
> mailto:jonathan_at_gennick.com * 906.387.1698
> http://Gennick.com * http://MichiganWaterfalls.com *
> http://ValleySpur.com
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: Jonathan Gennick
> INET: listmail_at_gennick.com
>
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---

-- 
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-- 
Author: Lord, David - CSG
  INET: David.Lord_at_hayscsg.com

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Received on Thu Jun 13 2002 - 03:58:35 CDT