V$transaction

Identify Locked Objects in Oracle Database using v$locked_object, dba_objects, v$lock and v$session Purpose A developer reports that an INSERT that should finish in seconds is still running after ten minutes. No error has come back to the application, no timeout has fired, and nothing is moving. In the vast majority of …

Real-Time Oracle Rollback Detection: Is Your Database Undoing Changes? This SQL query monitors real-time rollbacks in Oracle databases. It identifies which sessions are actively undoing changes and tracks their progress by observing the used_ublk value (the number of undo blocks in use). When used_ublk reaches zero, …