In the previous article of Automatic deletion of archived redo log, we have seen automatic deletion is enabled by default in the Logical Standby database.

Automatic Deletion of Redo Log Files by SQL Apply

LOG_AUTO_DEL_RETENTION_TARGET parameter is responsible for this. It has default value 1440 minutes. However, we can manage this parameter and set retention for deletion of archive logs as per our requirement.

This parameter is only applicable if ‘LOG_AUTO_DELETE’ of dbms_logstdby.apply_set is set to true.

Oracle Data Guard will keep the remote archived redo log files after apply that to Logical Standby database according to time [minutes] specified in LOG_AUTO_DEL_RETENTION_TARGET  parameter.

To change this parameter’s value :

Note: This parameter is applicable only when you are not using the fast recovery area.

Stay tuned for More articles on Oracle DataGuard

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