Article View: borland.public.vdbase.data.sql
Article #1340Re: LookupSQL and Indexes
From: Joe Yuzamas
Date: Thu, 05 Feb 1998 00:00
Date: Thu, 05 Feb 1998 00:00
33 lines
1659 bytes
1659 bytes
Bob - Although I have never tested that, I suspect that is what would happen. I would never use the order by for an answer set I expected to edit. Use indexes where you anticipate editing. -- Joe < jyuzamas@wrdiss1.robins.af.mil or jyuzamas@sprynet.com > Robert L. Buchanan <47420.1311@compuserve.com> wrote in article <01bd320e$6f333600$83e6afce@bob-buchanan>... > Joe: > > My tests seem to indicate that if no index exists, it sorts the table into > a temp table -- which makes it readOnly. If a tag exists, it uses it -- and > allows editing. What am I missing here? > > Regards, Bob in Sacramento > > Joe Yuzamas <jyuzamas@wrdiss1.robins.af.mil> wrote in article > <01bd3178$d4ad36c0$1030f489@jyuzamas.robins.af.mil>... > > Lane - The ORDER BY creates an internal index and sorts on that index. > The > > SELECT statement will automatically use indexes if available, but SQL > does > > not require them. You will get better response from indexed fields. You > may > > also create indexes from SQL. > > -- > > Joe < jyuzamas@wrdiss1.robins.af.mil or jyuzamas@sprynet.com > > > > >
Technical Details
Message-ID:
<01bd3242$85d68220$1030f489@jyuzamas.robins.af.mil>Path:
arc1-ca.pugleaf.net!unknown!not-for-mailReferences:
<34D7D3FE.91E89A6D@VolSoft.com> <01bd3178$d4ad36c0$1030f489@jyuzamas.robins.af.mil> <01bd320e$6f333600$83e6afce@bob-buchanan>Show Full Headers
Complete Article Headers
X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: ff5a1,ffda3a0d031bab69 X-Google-Attributes: gidff5a1,public From: "Joe Yuzamas" <jyuzamas@wrdiss1.robins.af.mil> Subject: Re: LookupSQL and Indexes Date: 1998/02/05 Message-ID: <01bd3242$85d68220$1030f489@jyuzamas.robins.af.mil> X-Deja-AN: 322311334 References: <34D7D3FE.91E89A6D@VolSoft.com> <01bd3178$d4ad36c0$1030f489@jyuzamas.robins.af.mil> <01bd320e$6f333600$83e6afce@bob-buchanan> Organization: U.S. Air Force Newsgroups: borland.public.vdbase.data.sql