SQL> SQL> SQL> CREATE SEQUENCE test_seq; Sequence created. SQL> SQL> SELECT test_seq.nextval FROM DUAL; NEXTVAL ---------- 1 SQL> SELECT test_seq.nextval FROM DUAL; NEXTVAL ---------- 2 SQL> SELECT test_seq.nextval FROM DUAL; NEXTVAL ---------- 3 SQL> SQL> SQL> ALTER SEQUENCE test_seq MAXVALUE 10; Sequence altered. SQL> SQL> SELECT test_seq.nextval FROM DUAL; NEXTVAL ---------- 4 SQL> SELECT test_seq.nextval FROM DUAL; NEXTVAL ---------- 5 SQL> SELECT test_seq.nextval FROM DUAL; NEXTVAL ---------- 6 SQL> SELECT test_seq.nextval FROM DUAL; NEXTVAL ---------- 7 SQL> SELECT test_seq.nextval FROM DUAL; NEXTVAL ---------- 8 SQL> SELECT test_seq.nextval FROM DUAL; NEXTVAL ---------- 9 SQL> SQL> SQL> SQL> DROP SEQUENCE test_seq; Sequence dropped. SQL>