Article View: comp.lang.pascal.delphi.misc
Article #87Re: Stupid BUG in SQL LINKS ORACLE driver/Delphi
From: Christoph Gehrke
Date: Wed, 18 Aug 1999 00:00
Date: Wed, 18 Aug 1999 00:00
42 lines
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3136 bytes
I remember there were some problems with Delphi 3 and Oracle. I`m not sure but I think you need capital letters for Table- and Columnnames and single- and doublequotas... something like this: select COLUMN from "TABLE" where COLUMN like '''value''' Christoph Deja User schrieb in Nachricht <7pehog$1ar$1@nnrp1.deja.com>... >I am using Delphi 3.01 C/S so I am not sure if it has been fixed in >future versions. I am not even sure if it's a bug or a feature but my >trace into the behaviour have all the tell tale signs of a bug. > >Place a TQuery component on a form. The database property should point >to an Oracle alias. I am not sure how it will react to other SQL >servers (or more accurately, how other SQL servers will react to it). >Set the SQL property to a simple statment and qualify the table name >will the schema name as well. For example: select * from schema.table >Turn the Request Live property to TRUE and now try to set the Active >property of TQuery to True. You will get an error message from Oracle >that Table or View does not exist. Your first reaction may be that Live >Queries are not supported on remote SQL servers. Well, that may be true >but that is not what causing the error. You are getting the error from >Oracle and not Delphi....hmmm.... >Time to dig in a little: Start SQL Monitor and then run the form >containing your TQuery. You will see that after a bunch of (seemingly >useless) conversation with Oracle, the Delphi sends (Select * from >"schema"."table") to the Oracle server---notice double quotes around >schema and table names. If you take the SQL statement as is, i.e. with >double quotes around the schema and table names and run it any SQL tool >(e.g. SQL WorkSheet from Oracle), you will get the same "Table or View >does not exist" error message. So, it is the quotes which are causing >this error. FOLKS AT INPRISE SHOULD HAVE KNOWN BETTER.....!!!! > >Regards, > > >Sent via Deja.com http://www.deja.com/ >Share what you know. Learn what you don't.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: ff75c,dcaa479e61387f7d X-Google-Attributes: gidff75c,public X-Google-Thread: 10baee,dcaa479e61387f7d X-Google-Attributes: gid10baee,public X-Google-Thread: 10de66,dcaa479e61387f7d X-Google-Attributes: gid10de66,public X-Google-Thread: fd817,dcaa479e61387f7d X-Google-Attributes: gidfd817,public From: "Christoph Gehrke" <christoph.gehrke@gmx.de> Subject: Re: Stupid BUG in SQL LINKS ORACLE driver/Delphi Date: 1999/08/18 Message-ID: <7pejmj$4ot$1@news05.btx.dtag.de> X-Deja-AN: 514245235 Content-Transfer-Encoding: 8bit References: <7pehog$1ar$1@nnrp1.deja.com> X-Sender: 320043133419-0001@t-online.de Content-Type: text/plain; charset=ISO-8859-1 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 X-Complaints-To: abuse@t-online.de X-Trace: news05.btx.dtag.de 934990355 4893 320043133419-0001 990818 15:32:35 Organization: T-Online Mime-Version: 1.0 Newsgroups: comp.lang.pascal.delphi.misc,borland.public.delphi.database.sqlservers,borland.public.delphi.database.desktop,alt.comp.lang.borland-delphi