Generate Active Session History ASH Report in Oracle Database
Oct 3, 2025 / · 6 min read · Oracle Database Performance Tuning ASH Reports Database Monitoring SQL Scripts Diagnostics AWR Session Analysis 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 …
Read MoreOracle Time Model Queries: System and Session Performance Monitoring
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 …
Read MoreEnable or Disable Oracle GATHER_STATS_JOB for Automatic Statistics Collection using dbms_scheduler
Oct 1, 2025 / · 4 min read · oracle database dbms scheduler statistics gathering performance tuning database administration pl/sql optimizer statistics maintenance tasks dbms_scheduler ·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 …
Read MoreHow to Remove an Oracle AWR Baseline Using DROP_BASELINE
Sep 30, 2025 / · 4 min read · Oracle AWR Database Performance DBA PL/SQL Performance Tuning Baseline Management Workload Repository ·How to Remove an Oracle AWR Baseline Using DROP_BASELINE Purpose The DROP_BASELINE procedure removes a previously-defined AWR (Automatic Workload Repository) baseline from an Oracle database. This command is essential for database administrators who need to conserve storage space by deleting unused or outdated …
Read MoreOracle AWR Create Baseline for Performance Monitoring DBMS_WORKLOAD_REPOSITORY.CREATE_BASELINE
Sep 29, 2025 / · 6 min read · Oracle Database AWR Performance Tuning Database Monitoring PL/SQL DBA Scripts Baseline Management Performance Analysis DBMS_WORKLOAD_REPOSITORY ·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 …
Read MoreList All Oracle AWR Baselines Using DBA_HIST_BASELINE
Sep 28, 2025 / · 5 min read · Oracle AWR Performance Tuning Database Administration SQL Scripts Baseline Management Performance Monitoring DBA DBA_HIST_BASELINE ·List All Oracle AWR Baselines Using DBA_HIST_BASELINE This SQL script retrieves all AWR baselines stored in an Oracle Database, displaying critical information about each baseline including its identifier, name, and associated snapshot range. AWR baselines preserve specific periods of database performance statistics …
Read MoreHow to Manually Take an AWR Snapshot in Oracle Database with dbms_workload_repository.create_snapshot
Sep 27, 2025 / · 5 min read · Oracle Database AWR Performance Tuning Database Administration PL/SQL Monitoring Troubleshooting Database Optimization dbms_workload_repository ·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 …
Read MoreHow to Change Oracle AWR Retention Period to 14 Days using dbms_workload_repository
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 …
Read MoreHow to Change Oracle AWR Snapshot Interval to 30 Minutes using dbms_workload_repository.modify_snapshot_settings
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 …
Read MoreHow to Check Oracle AWR Snapshot Interval and Retention Settings using table dba_hist_wr_control
Sep 24, 2025 / · 6 min read · Oracle Database AWR Performance Tuning Database Administration SQL Scripts Monitoring Workload Repository DBA dba_hist_wr_control ·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 …
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