Alex, Thanks for the help. Just wanted to understand what could be the reason for such issues? I tried setting the parameter as suggested to failed to keep track of the lock as the duration is too less. On Fri, Oct 16, 2009 at 12:56 AM, Alex Fatkulin <afatkulin@xxxxxxxxx> wrote: > What you can do it set ddl_lock_timeout to a non-zero value, that > would make the session to be blocked for the time specified instead of > immediately failing with ora-54. While it remains blocked take a look > at v$lock at the "offending" other transaction that holds you up. That > may give you some clues. > > On Thu, Oct 15, 2009 at 2:29 PM, DBA Deepak <oracle.tutorials@xxxxxxxxx> > wrote: > > The application uses "alter table ... add partition..." to add the > > partitions > > > > -- > Alex Fatkulin, > http://afatkulin.blogspot.com > http://www.linkedin.com/in/alexfatkulin > -- Regards, Deepak Oracle DBA