In modern DBA practices, backup performance and efficiency are critical underpinnings of reliability and recovery SLAs. Oracle’s Block Change Tracking (BCT) feature exists to accelerate RMAN incremental backups by avoiding full datafile scans. In Oracle 19c, BCT continues to deliver value—and knowing how to enable, monitor, and disable it becomes essential for any serious DBA. […]
Database block corruption is one of the most dreaded issues for any DBA. Whether caused by storage faults, memory glitches, or human error, corruption can lead to data loss or application downtime if not handled carefully. Oracle provides multiple tools and techniques to detect, validate, and repair corruptions, both in non-CDB and multitenant (CDB/PDB) environments. […]
What is Point-in-Time Recovery? Point-in-Time Recovery is a technique to restore a database to a specific moment in the past. Unlike complete recovery (which applies all redo/archived logs until the most recent commit), PITR deliberately stops recovery at a chosen point. Demo Scenario Let’s simulate a common situation: Step 1: Setup and Insert Data At […]