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Article View: borland.public.cppbuilder.database.ado
Article #1361

Re: Data Type Mismatch in Criteria Expression

#1361
From: Kim Utley
Date: Mon, 26 Jul 2004 19:30
63 lines
2814 bytes
Am using Microsoft Access with TADOQuery and TADOConnection.

What do you mean by 'use parameter'?

I wish to to SQL statement because if I use TADOTable it wants to read up
all columns when I open the table.

    adoQuery->SQL->Clear();
    adoQuery->SQL->Add( "DELETE FROM EventHistoryTbl WHERE
            DateTimeStamp < '06/26/04 10:17:30'" );

    //    this is where the exception is thrown...
    //
    adoQuery->ExecSQL();


Kindest Regards,


Kim

"Viatcheslav V. Vassiliev" <support@oledbdirect.com> wrote in message
news:41053e2f$1@newsgroups.borland.com...
> It depends on DBMS. General solution that should work with any DBMS is to
> use parameter for dates.
>
> //------------------------------------------
> Regards,
> Vassiliev V. V.
> http://www.managed-vcl.com - using .Net objects in Delphi for Win32 +
> ADO.Net
> http://www.oledbdirect.com - The fastest way to access MS SQL Server,
> MS Jet (Access) and Interbase (through OLEDB)
>
> "Kim Utley" <kim@simsware.com> �������/�������� � �������� ���������:
> news:41052c3f$1@newsgroups.borland.com...
> > Hi All,
> >
> > Am working on BCB 6 with TADO... objects, specifically TADOConnection
and
> > TADOQuery in my example problem. I am attempting to delete all rows in a
> > table that have a date/time stamp older than 'x' amount of days.
> >
> > I am issuing the following SQL statement be am getting "Data type
mismatch
> > in criteria express' exception:
> >
> > DELETE FROM EventHistoryTbl WHERE DateTimeStamp < '06/26/04 10:17:30'
> >
> > I've also tried:
> >
> > DELETE FROM EventHistoryTbl WHERE DateTimeStamp < #06/26/04 10:17:30#
> >
> > Does anyone know why I'm getting this error?
> >
> > Kindest Regards,
> >
> >
> > Kim L. Utley
> >
> >
>
>
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