Thanks for your help, everyone.
This is a summary of replies.
1. Calculated fields in table definitions . eg.
Create table test (
the_sum As (A+B),
This functionality can be achieved through the use of views.
Implementing the create table syntax may not be too hard,
but not in 7.1...
2 Parameterised Triggers
Functionality is there, just that the documentation gave the wrong implication.
An user manual example of using parameterised triggers to implement referential
would be welcome.
3. Stored Procedures returning a record set.
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