V$active_session_history

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 …

Oracle Time Model Queries: System and Session Performance Monitoring Purpose Oracle time model queries provide database administrators with powerful tools to measure and analyze where time is spent within the database system. These queries use two essential dynamic performance views that track accumulated time for …