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 …

Check Missing Archive Logs in Oracle Data Guard Standby Database Purpose This SQL query helps database administrators identify missing archive logs on an Oracle Data Guard standby database. When archive logs fail to transfer from the primary to the standby database, it creates gaps that prevent proper synchronization. …

Troubleshooting Oracle Data Guard FAL and Physical Logfile Registration Issues Oracle Data Guard environments sometimes encounter issues when the Fetch Archive Log (FAL) process fails to automatically transfer missing archive logs to standby databases. When FAL reports that a log is already registered or cannot …

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 …

How to Cancel Oracle Data Guard Managed Recovery Overview The ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL command stops the Managed Recovery Process (MRP) on an Oracle Data Guard physical standby database. This command is essential when you need to perform maintenance operations, open the database in …

Removing Standby Database Apply Delay in Oracle Data Guard Purpose This script removes the apply delay from an Oracle Data Guard physical standby database. Apply delays are safety features that create a time lag between when redo data arrives at the standby database and when it is applied, protecting against corrupted …

Oracle Data Guard Standby Database Startup Commands Oracle Data Guard standby database startup commands enable database administrators to initialize and maintain physical standby databases that provide disaster recovery and high availability for production systems. These three essential commands work together to bring …

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 …