@all,
thanks for your quick and helpful contribution. I'm very pleased about
the high quality and fast support offered on thist list. Thanks to all
people active here.

@Hans,
indeed a stored proc or derived field is also a solution, but not in my
case, as it's a larger case-of construct with additional tests on other
fieldvalues. And the logic is already implemented on the client side in
delphi as a function and used in several places within my app.

@Helen, @Kevin
Bingo! That good-old BDE fields was something I hadn't considered.
Of course, that's the solution and it's working quite well.

Regards
Gunther


Am 5 Oct 2005 um 12:06 hat Helen Borrie geschrieben:

> No, you're not right. TIBOQuery is a TDataset descendant so you just
> create calc fields for it the same as you do with TQuery. If you don't
> know how to do that, look up the Delphi VCL help. (The same rule applies
> to all class members inherited from the VCL components, that are not
> overridden. This is Delphi!!)
>
> As Hans has pointed out, if these are not complex calculations, it is far
> simpler (and uses fewer resources) if you retrieve the calculated values as
> derived fields, also sometimes called "expression fields".
>

___________________________________________________________
Gesendet von Yahoo! Mail - Jetzt mit 1GB Speicher kostenlos - Hier anmelden: http://mail.yahoo.de