From: "Paul Vinkenoog"

> > * I design a database and grant access to a user other than SYSDBA
> > e.g. MASTERUSER
>
> If you want MASTERUSER to be the owner of the new database, you:
>
> - Connect to the Firebird server as MASTERUSER.
> - Create the database.

In fact it is just one-step process, you do not make any "dummy" connection:

- Create the database and specify the owner among other parameters

>
> If you create the db as SYSDBA, you can grant any rights you want to
> MASTERUSER but that's more work.

But ownership of database can't be granted.
Only SYSDBA and database owner have rights to
-backup database
-shutdown database
-drop database
-set some parameters, like sweep interval, etc.

Ivan