SQL> create database "file.ext"; -- ok, бд создалась
SQL> show version;
ISQL Version: WI-V3.0.0.32342 Firebird 3.0 Release Candidate 2
Server version:
Firebird/Windows/Intel/i386 (access method), version "WI-V3.0.0.32342 Firebird 3.0 Release Candidate 2"
on disk structure version 12.0
SQL> create database "file..ext";
Commit current transaction (y/n)?y
Committing.
Statement failed, SQLSTATE = 28000
Use of database at location C:\Users\SD\ttt\file..ext is not allowed by server configuration