SQL> SQL> CREATE TABLE myTable ( 2 id INTEGER, 3 duration INTERVAL YEAR(3) TO MONTH 4 ); Table created. SQL> SQL> INSERT INTO myTable (id, duration)VALUES (2, INTERVAL '11' MONTH); 1 row created. SQL> SQL> SQL> select * from myTable; ID DURATION ---------- --------------------------------------------------------------------------- 2 +000-11 SQL> SQL> drop table myTable; Table dropped. SQL>