/*查看锁(lock)情况*/ SELECT ls.osuser os_user_name, ls.username user_name, decode(ls.type, 'RW', 'Row wait enqueue lock', 'TM', 'DML enqueue lock', 'TX', 'Transaction enqueue lock', 'UL', 'User supplied lock') lock_type, o.object_name OBJECT, decode(ls.lm