Em 17/5/2013 18:24, Ted Miglautsch escreveu:

> I frequently make changes to system tables and started using Interbase
> and then Firebird because I could do that. Mostly I extent the size of
> char and varchar fields. It just requires knowing what you are doing.
> You have to consider whether the change you are making could cause the
> problem that you encountered.
>

The correct way of doing this is using a DDL command ALTER TABLE

In future versions of FB directly system table updates will be denied.

see you !