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 …

Enable or Disable Oracle GATHER_STATS_JOB for Automatic Statistics Collection The GATHER_STATS_JOB is a critical Oracle Database scheduled job that automatically collects optimizer statistics to ensure the database query optimizer generates efficient execution plans. This job is enabled by default when creating a new …

Oracle AWR Create Baseline for Performance Monitoring DBMS_WORKLOAD_REPOSITORY.CREATE_BASELINE What is Oracle AWR Create Baseline The DBMS_WORKLOAD_REPOSITORY.CREATE_BASELINE procedure creates a baseline by preserving a specific range of AWR snapshots for future performance comparisons. A baseline protects performance …

How to Manually Take an AWR Snapshot in Oracle Database with dbms_workload_repository.create_snapshot What is Oracle AWR Snapshot Creation? Creating a manual AWR snapshot in Oracle Database allows database administrators to capture performance statistics at specific points in time, providing precise data 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 Change Oracle AWR Snapshot Interval to 30 Minutes using dbms_workload_repository.modify_snapshot_settings Purpose The Oracle Database Automatic Workload Repository (AWR) collects and stores performance statistics to help database administrators monitor and analyze database performance over time. The code …

How to Check Oracle AWR Snapshot Interval and Retention Settings using table dba_hist_wr_control Purpose The Oracle Database Automatic Workload Repository (AWR) is a critical component for performance monitoring and database tuning that automatically collects and stores performance statistics at regular intervals. This …

Understanding Oracle AWR Snapshot Display The Oracle Automatic Workload Repository (AWR) is a performance diagnostic tool that collects, processes, and stores database statistics automatically. Displaying a list of available snapshots is essential for database administrators who need to generate AWR reports, analyze …

Oracle Statspack Automation: Scheduling Hourly Database Performance Snapshots Oracle Statspack automation provides database administrators with continuous performance monitoring capabilities through scheduled snapshot collection. The spauto.sql script enables automated hourly snapshots that capture essential database …