> >>Violation of PRIMARY or UNIQUE KEY constraints "INTEG_94" on table
> >>"MATCONTI"

I've got it working now!
I have never worked with ExecSQL before...

Normaly I use folowing:
- close dataset
- prepare sql
- open dataset

So I did it here:
- close dataset
- prepare sql
- open dataset
- call ExecSQL

sql statement executed twice.

Is this so, that ExecSQL does not need opened dataset ?

Regards
Primoz