[Oracle] Who is locking what???

select * from (
SELECT s.schemaname, p.username, s.sid, p.pid, p.spid, s.username ora,
DECODE(l2.type, 'TX','TRANSACTION ROW-LEVEL', 'TS','TEMPORARY SEGMENT ', 'TD','TABLE LOCK',
'TM','ROW LOCK', l2.type ) vlock,
DECODE(l2.type, 'TX','DML LOCK', 'TS','TEMPORARY SEGMENT', 'TD',DECODE(l2.lmode+l2.request,
4,'PARSE ' || u.name || '.' || o.name, 6,'DDL', l2.lmode+l2.request), 'TM','DML ' || u.name ||
'.' || o.name, l2.type ) type,
DECODE(l2.lmode+l2.request, 2,'RS', 3 ,'RX', 4 ,'S', 5 ,'SRX', 6 ,'X', l2.lmode+l2.request ) lmode ,
DECODE(l2.request, 0,NULL, 'WAIT') wait
FROM v$process p, v$_lock l1, v$lock l2, v$resource r, sys.obj$ o, sys.user$ u, v$session s
WHERE s.paddr = p.addr
AND s.saddr = l1.saddr
AND l1.raddr = r.addr
AND l2.addr = l1.laddr
AND l2.type <> 'MR'
AND l2.type <> 'RT'
AND r.id1 = o.obj# (+)
AND o.owner# = u.user# (+)
)