SQL>
SQL> CREATE TABLE emp (
2 id NUMBER PRIMARY KEY,
3 fname VARCHAR2(50),
4 lname VARCHAR2(50)
5 );
Table created.
SQL>
SQL> SELECT dbl.lock_type, dbl.mode_held, dbl.blocking_others,
2 dbo.object_name object_locked, dbo.object_type
3 FROM dba_locks dbl, v$session v, dba_objects dbo
4 WHERE v.username = 'PLSQL'
5 AND dbl.session_id = v.sid
6 AND dbo.object_id = dbl.lock_id1;
no rows selected
SQL>
SQL> drop table emp;
Table dropped.
SQL>