How to identify the locks in oracle db objects? i dont have access to check

Question

How to identify the locks in oracle db objects? i dont have access to check the v$lock or v$ objects. i dont have dba access. what are the symptoms for table, row or objects lock? how v guess it would be lock?
Thanks in advance friends..

Answer 1

I believe you will have to call your DBA on the phone in that case.
You can query something with a select ... for update nowait.
If it raises an exception you can handle it within a when section.
-- Running in one session
SQL> create table t1 as select 1 col1 from dual;
Table created
SQL> select * from t1 for update nowait;
      COL1
         1
SQL>
-- now running in a different session
SQL> select * from t1 for update nowait;
select * from t1 for update nowait
ORA-00054: resource busy and acquire with NOWAIT specified
SQL> set serveroutput on
SQL>
SQL> DECLARE
  2    CURSOR cur1 IS
  3      SELECT col1 FROM t1 FOR UPDATE NOWAIT;
  4    v_col1 NUMBER;
  5    locking_error EXCEPTION;
  6    PRAGMA EXCEPTION_INIT(locking_error, -00054);
  7  BEGIN
  8    OPEN cur1;
  9  EXCEPTION
10    WHEN locking_error THEN
11      dbms_output.put_line('Busted locking my rows!');
12  END;
13  /
Busted locking my rows!
PL/SQL procedure successfully completed
SQL> Now, surely you won't be able to tell anything else other than there was something locked there.
But none of the details you would find in the views.