To insert an extra query:
||Use the Windows Designer catalog to open the appropriate
||In the design view, select the Info Box into which you want to
insert an extra query.
||From the menu bar, choose Insert, Extra Query.
A dummy Extra Query and its
resulting field are inserted.
||Select the Extra Query in the Object Tree for the
window/dialog, and open the Property Inspector.
Do NOT specify the underlying
query by selecting the dummy field and setting its Values property.
This does not produce the desired result.
||In the Property Inspector, select the Underlying Query property
and press the upper Edit (...) button.
The SQL Definer opens,
enabling you to specify the query.
||Specify the Underlying Query statement. On the Query Tree tab
page, select Save from the right mouse-menu. Close the SQL
One or more extra column
controls are added to the current info box to display the extra
query result. Use the Property Inspector to change their location
and display properties. Prompts are taken from the select list of
the extra query's SQL statement.
Example: Adding a Computed