Article View: borland.public.vdbase.data.sql
Article #497Using a variable replacement in SQL
From: Bob Knapp
Date: Wed, 02 Sep 1998 00:00
Date: Wed, 02 Sep 1998 00:00
39 lines
1598 bytes
1598 bytes
Hello
I am trying to perform the UPDATE function with SQL in dbase 7.01. What
I would like to do is replace all values in a field when a match is
made.
My understanding is that the update command works as follows UPDATE
<table name> SET <colum name> = <expression> WHERE <search condition>.
This command works fine from dbase :
UPDATE DATA1.DBF SET VALUE1 = '1000' WHERE VALUE2 = 'TEST'
All VALUE1 occurances are changed to 1000 when VALUE2 is equal to TEST.
The problem is this: In the real world '1000' and 'TEST' are being sent
in as variables and changed all the time.
If I set these values to variables it won't work . ie. TEMP1 = '1000'
, TEMP2 = 'TEST'
UPDATE DATA1.DBF SET VALUE1=TEMP1 WHERE VALUE2=TEMP2
I even tried to use &TEMP1 and &TEMP2 as well as '&TEMP1' and '&TEMP2'.
Nothing seems to work and there is little or no information on how to
use SQL with a variable replacement.
What is the secret syntax, or does visual dbase not support common SQL
language.
This seems to be a simple problem but the syntax eludes me.
Thanks for help in this area,
Bob Knapp
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: ff5a1,3529dd9d0cb9d0ba,start X-Google-Attributes: gidff5a1,public From: Bob Knapp <nectel@erols.com> Subject: Using a variable replacement in SQL Date: 1998/09/02 Message-ID: <35ED6C73.CA7B92E@erols.com> X-Deja-AN: 387170518 Content-Transfer-Encoding: 7bit Organization: NecTel Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 Newsgroups: borland.public.vdbase.data.sql