How to detect apps users holding locks

Question

Dear all
Finding out users holding locks is easy for database and then killing them using alter statement
But when the Sid is revealed, how can i link them to apps users and find who the user actually was

Answer 1

Sawwan,
On my test server, i logged in from a user farid and held a lock on MTL_SYSTEMS_ITEMS_B table through the item master form
Then i did as follows just to analyze how to find apps username holding the lock
SQL> select object_id from dba_objects where object_name='MTL_SYSTEM_ITEMS_B';
OBJECT_ID
38489
38715
SQL> select * from v$lock where id2=38489 or id2=38715;
no rows selected
SQL> select * from v$lock where id1=38489 or id1=38715;
ADDR KADDR SID TY ID1 ID2 LMODE
REQUEST CTIME BLOCK
000000009D869FE8 000000009D86A010 347 TM 38489 0 3
0 165 0
SQL> select paddr from v$session where sid=347;
PADDR
000000009F912AE0
SQL> select addr,pid from v$process where addr='000000009F912AE0';
ADDR PID
000000009F912AE0 57
SQL> select
2 d.user_name "User Name",
3 b.sid SID,b.serial# "Serial#", c.spid "srvPID", a.SPID "ClPID",
4 to_char(START_TIME,'DD-MON-YY HH:MM:SS') "STime"
5 from
6 fnd_logins a, v$session b, v$process c, fnd_user d
7 where
8 b.paddr = c.addr
9 and a.pid=c.pid
10 and a.spid = b.process
11 and d.user_id = a.user_id
12 and a.SPID = &PID;
Enter value for pid: 57
old 12: and a.SPID = &PID
new 12: and a.SPID = 57
no rows selected
Now can you plz tell me if all i did was right and the query doesnt work or something i did was wrong in the above action plan