Compiling Stored Procedure hangs Oracle SQL Developer

Question

I am facing an unusual problem in Oracle SQL Developer. When I try to compile a store procedure it hangs up the Oracle SQL DEveloper Screen and I can't do any activity, except to kill the SQL developer instance and start again.

But the same issue. Anybody faced such problem? I am new to oracle.

Here some additions to the problem I waited for 5 to 10 mins and got this error

ORA-04021 timeout occurred while waiting to lock object

But I am the only person working on this instance of Oracle

Answer 1

One of your previous attempts to create the procedure, which you killed, is still stuck and active. You need to kill that Oracle session using http://www.oracle-base.com/articles/misc/KillingOracleSessions.php

The other source of this error is another process in your database is running the procedure while you are trying to compile it. Use this query to figure out which process is running it:

select sess.sid, sess.username, sql_text
from v$sqlarea sqlarea, v$session sess
where sess.sql_hash_value = sqlarea.hash_value
and   sess.sql_address    = sqlarea.address
and   sess.username is not null;