Database Administration (MOSC)

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Database Locking (dml lock)

edited Jul 8, 2011 4:47AM in Database Administration (MOSC) 4 commentsAnswered
 Dear all,

we are using application server 10g verison 10.1.2.3 and database 10g version 10.2.0.4.

in our environment users are updating data through applicaton to the database tables, in some scenarios more than one user updating data and one user terminate his session abnoramlly but its session in on inactive stage in the database while other user login and update that same row locking occured and these locks are held long period of time which shows like a hang stage.

the problem occured when a user application server session gets abnormally disconnected due to which that user session stays in database but don't perform any task. due to this locking in database occured.

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