Oracle Dba

Oracle RMAN Crosscheck Archivelog - Fix RMAN-06059 Error Purpose The change archivelog all crosscheck command is an Oracle Recovery Manager (RMAN) utility that synchronizes the RMAN repository metadata with the physical reality of archived redo log files. This command specifically resolves the RMAN-06059 error, which …

Delete Archive Log Older Than 5 Days in Oracle RMAN Purpose The DELETE NOPROMPT ARCHIVELOG UNTIL TIME command removes old archive log files from your Oracle database to free up disk space and maintain storage efficiency. This RMAN (Recovery Manager) command automatically deletes archive logs that are older than a …

Oracle RMAN Crosscheck Backup Command - Verify Backup Availability Purpose The CROSSCHECK BACKUP command is an essential Oracle RMAN (Recovery Manager) tool that verifies whether backup files recorded in the RMAN repository still physically exist on storage media. This command synchronizes the logical records in your …

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 …

How to Change Oracle AWR Retention Period to 14 Days using dbms_workload_repository.modify_snapshot_settings Purpose The Oracle code changes the Automatic Workload Repository (AWR) retention period from the default 8 days to 14 days (two weeks). This allows database administrators to store performance snapshots for a …

How to Uninstall Oracle Statspack Using the spdrop Script - Complete Guide Oracle Statspack uninstallation is accomplished using the @?/rdbms/admin/spdrop command, which completely removes the Statspack performance monitoring framework from your Oracle database. This command removes all associated objects including the …

Oracle SQL Performance Analysis Query - Monitor SQL Execution Statistics Purpose This Oracle SQL query is designed to analyze the performance characteristics of a specific SQL statement by examining key execution metrics stored in the v$sqlarea dynamic performance view. Database administrators and performance analysts …