How to convert Firebird base from version 2.5 to version 3.0?

Question

firebird

I have a server version 3.0.0 I
connect from IBExpert 2015
The file itself with the database from the DBMS version 2.5, I just copied it from there.
Error message:
wrong or obsolete version. unsupported on-disk structure for file ; found 11.2, support 12.0. IProvider::attachDatabase failed when loading mapping cache.
If I understand correctly, you need to somehow convert from the previous version to the new one. How to do it?

Answer 1

Make a backup with gbak in the old version, and restore in the new one. It is then recommended to recompile all triggers and stored procedures so that they also convert to the new format.