Article View: borland.public.interbase.sql
Article #819Re: performance
From: Tiberiu Horvath
Date: Sat, 12 May 2007 06:31
Date: Sat, 12 May 2007 06:31
25 lines
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1593 bytes
Thank you very much ! Tiberiu "Svein Erling Tysv�r" <svein.erling.tysvaer@kreftregisteret.no> wrote in message news:4644a2fb$1@newsgroups.borland.com... > Tiberiu Horvath wrote: >> One more thing. >> >> To avoid using the index, if the field is of Char() type, can I use >> >> where >> produse.name_of_product='Something'+''? > > Yes Tiberiu... well, close at least - '+' isn't used for concatenation and > you have to concatenate it to the field where you don't want the index to > be used, not the other side of the expression (and certainly not with a > constant): > > where produse.name_of_product||'' = 'Something' > > Set
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X-Google-Thread: 114a0e,65a795d106dce3a2 X-Google-Attributes: gid114a0e,public X-Google-Language: ENGLISH,ASCII From: "Tiberiu Horvath" <exact@exactonly.ro> Newsgroups: borland.public.interbase.sql References: <464355cc@newsgroups.borland.com> <46439619$1@newsgroups.borland.com> <46449a74@newsgroups.borland.com> <4644a2fb$1@newsgroups.borland.com> Subject: Re: performance Date: Sat, 12 May 2007 09:31:27 +0300 Lines: 27 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2900.3028 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-RFC2646: Format=Flowed; Response NNTP-Posting-Host: 86.122.211.180 Message-ID: <46455f3d$1@newsgroups.borland.com> X-Trace: newsgroups.borland.com 1178951485 86.122.211.180 (11 May 2007 23:31:25 -0700) Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!news.glorb.com!newsfeeds.ihug.co.nz!ihug.co.nz!newsgroups.borland.com!not-for-mail