I use IBO3 with Delphi 3.

I want to display item IDs and item descriptions in a DBGrid.

This is easily done by constructing a TIB_Query with the following
SQL string:

'select cod_art, des_art from art order by des_art'

A Datasource links the TIB_Query to a DBGrid and voila', ev works.

Now the problem.

I want to display the existing quantity QTY for every item, aside ID
and description.

But QTY is not a table field.

QTY can only be dinamically calculated by a SP (whose name is Q_E)
that accepts an item ID and the final date for the calculation.

This beats me.

How can I do that ?

TIA

Duilio Foschi