SQL> create sequence s1 start with 100 increment 2;
SQL> show sequences;
Generator S1, current value: 100, initial value: 100, increment: 2
SQL> alter sequence s1 restart with 5 increment 3;
SQL> show sequences;
Generator S1, current value: 5, initial value: 100, increment: 3
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