--- In firebird-support@yahoogroups.com, ales <ales@c...> wrote:

> Helo!
>
> I have 3 conected tables (master/detail) like A -> B A-> C
>
> I want to drop all tables. When I try to drop table B it returns me

an

> error (actualy it is not an error but I don't know what to do :)))
> "These operation is not defined for system tables. Unsuccesfully
> metadata update. Cannot delete. COLUMN PRD2_ID. There are 1

delendences."

This mean PRD2_ID is used in some stored procedure or trigger not on
table B. Find it and change code before dropping table.

> I am using IB Expert Personal Edition!!

I did'nt seen this, but in commercial IBExpert you can see
dependencies just selecting appropriate tab when exploring table. If
Personal have'nt this ability, take a look on rdb$dependencies table
description in Language Reference, it is very easy to write query to
find dependent object.

Best regards,
Alexander.