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Database Tuning (MOSC)

mode_held=None in dba_waiters

Dec 28, 2008 11:50PM edited Jun 12, 2018 3:59PM in Database Tuning (MOSC) 5 commentsAnswered

We are getting the mode_held value 'None' for some session in dba_waiters.

Can any body please clarify the meaning of 'None' and when does this kind of lock occured?

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