Try fpc-2.0.4(rc3)
On Tue, 2006-08-22 at 18:57 +0200, Zlatko Matić wrote:
> Hi!
>
> I tried to do what you suggested. I set the parameter value first and then
> set the property "Active" to true:
>
> procedure TForm1.FormCreate(Sender: TObject);
> var
> begin
> SQLQuery1.Params.ParamByName('parameter').AsString:='NESTERILNE MASTI, KREME
> I GELOVI';
> SQLQuery1.Active:=True;
> end;
>
> I compile it, but when I start my compiled exe, the following error apears:
> "PQConnection1: Preparation of query failed (PostgreSQL: ERROR: current
> transaction is aborted, commands ignored until end of transaction block).
> Press OK to ignore and risk data corruption, press Cancel to kill the
> program."
>
> If I comment the second row (//SQLQuery1.Active:=True;) then there is no
> such run-time error...
>
> Thanks for any help.
>
> Zlatko
>
> ----- Original Message -----
> From: "Joost van der Sluis" <[EMAIL PROTECTED]>
> To: <lazarus@miraclec.com>
> Sent: Monday, August 21, 2006 10:53 PM
> Subject: Re: [lazarus] parameterized queries
>
>
> Look in the examples in fcl/db/sqldb/examples
>
> (You have to set the value of the parameterer before you can make it
> active)
>
>
> On Mon, 2006-08-21 at 18:16 +0200, Zlatko Matić wrote:
> > Is there any article explaining how to use parameterized queries in
> > TSQLQuery ?
> >
> > ----- Original Message -----
> > From: Zlatko Matić
> > To: lazarus@miraclec.com
> > Sent: Sunday, August 20, 2006 2:24 PM
> > Subject: [lazarus] parameterized queries
> >
> >
> > Hello.
> >
> > I just tried to put some parameterized query on a form and
> > pass the parameter's value through code.
> > The query is the following:
> >
> > select distinct sampling_types.sampling_type,
> > plants.plant,
> > plants.department
> > from ((sampling_types join batches_microbs on
> > (((sampling_types.sampling_type)=
> > (batches_microbs.sampling_type)))) join plants
> > on (((batches_microbs.plant) =
> > (plants.plant))))
> > where batches_microbs.sampling_type is not null and
> > plants.plant_active = true and
> > plants.plant = :parameter
> > group by sampling_types.sampling_type,
> > plants.plant,
> > plants.user,
> > plants.plant_active,
> > plants.plant_report,
> > plants.department
> > order by sampling_types.sampling_type,
> > plants.plant,
> > plants.department;
> >
> > In the query above, ":parameter" should be the
> > actual parameter. I wanted to pass the parameter's value
> > through code, in the FormCreate event procedure, something
> > like this:
> > SQLQuery1.Params.ParamByName
> > ('parameter').AsString:='NESTERILNE MASTI, KREME I GELOVI';
> >
> > Well, when I try to set the query to be "Active", the
> > following error occurs:
> > "Error. PQConnection1: Unknown fieldtype for parameter
> > "parameter"."
> >
> > What shoudl I do?
> >
> > Thanks,
> >
> > Zlatko
--
Met vriendelijke groeten,
Joost van der Sluis
CNOC Informatiesystemen en Netwerken
http://www.cnoc.nl
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