Oracle RMAN Reset Database After RESETLOGS Recovery Purpose The RESET DATABASE command in Oracle Recovery Manager (RMAN) notifies the recovery catalog that a new database incarnation has been created after opening the database with the RESETLOGS option. This command is essential for maintaining synchronization between …

How to Register an Oracle Database with RMAN Catalog Purpose The RMAN register database command adds a target database to the recovery catalog so that Recovery Manager can track and maintain backup metadata. This allows RMAN to store backup information, recovery points, and database structure details in a central …

Display Log Destinations Options for Oracle Data Guard Primary Database Purpose This SQL script displays detailed information about all configured archive log destinations on an Oracle Data Guard primary database. The query retrieves critical configuration parameters from the V$ARCHIVE_DEST view, allowing database …

Oracle Logical Standby Apply Stop and Start Commands Purpose The logical standby apply commands control the SQL Apply process in Oracle Data Guard logical standby databases. These commands allow database administrators to stop and start the application of redo log data from the primary database to the logical standby …

List All Standby Redo Logs in Oracle Data Guard Purpose This SQL script helps database administrators quickly identify and list all standby redo logs in an Oracle Data Guard environment. The query retrieves important information about standby redo log groups, including their sequence numbers, sizes in megabytes, and …

How to Stop Oracle Data Guard Broker Using ALTER SYSTEM Command Purpose The command ALTER SYSTEM SET dg_broker_start=false stops the Oracle Data Guard broker by shutting down the Data Guard monitor (DMON) background process. This command is essential when you need to disable broker management temporarily for …

Oracle Enable FAL Tracing on Primary Database Purpose Enabling FAL (Fetch Archive Log) tracing on the primary database helps database administrators monitor and troubleshoot archive log gap resolution between primary and standby databases in Oracle Data Guard environments. This command activates detailed trace logging …

How to Disable and Enable Oracle Archive Log Destinations Purpose The Oracle commands for disabling and enabling archive log destinations allow database administrators to control the availability of archive destinations without removing the configuration. These commands are commonly used in Oracle Data Guard …

Register Missing Log File in Oracle Database The ALTER DATABASE REGISTER PHYSICAL LOGFILE command is used to manually register archived redo log files in an Oracle Data Guard environment, specifically for physical standby databases. This command becomes essential when automatic log registration fails or when gaps occur …

Generate Active Session History ASH Report in Oracle Database The Active Session History (ASH) report is a powerful diagnostic tool that helps database administrators analyze performance issues by capturing detailed snapshots of active database sessions every second. This report provides granular insights into what …