View data table lock table and unlock

1、SELECT p.spid, a.serial#, c.object_name, b.session_id, b.oracle_username, b.os_user_name FROM v$process p, v$session a, v$locked_object b, all_objects c WHERE p.addr = a.paddr AND a.process = b.process AND c.object_id = b.object_id; 

2. SELECT sid, serial#, username, osuser FROM v$session where osuser ='chmap'; Explanation: osuser='chmap' chmap is your current database user.   
 3. alter system kill session '1359,31245'; --sid, serial# 
        alter system kill session '1464,4898'; --sid, serial#