Database Monitoring

Oracle Database Log Destinations Monitoring Script for Data Guard Purpose This Oracle SQL script monitors all log destinations in a Data Guard configuration from the primary database. The query provides real-time information about archive log destinations, their status, operational modes, and standby redo log activity. …

Check Oracle Data Guard Standby Synchronization Status Purpose Is the physical standby caught up with the primary? The fastest first answer is a pair of numbers: the log sequence the primary is writing now, and the newest log sequence the standby has applied. If the two are close, redo is flowing and being applied. If …

Generate Active Session History ASH Report in Oracle Database Users say the application froze for four minutes at 10:42 and then recovered. An hourly AWR report will average that spike away. An Active Session History (ASH) report built for 10:40 to 10:50 shows which sessions, SQL statements and wait events were active …

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 …

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 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 …

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 Database Statspack spreport.sql Script: Complete Performance Tuning Guide The Oracle Database @?/rdbms/admin/spreport.sql script is a comprehensive performance reporting tool that generates detailed Statspack reports for database analysis and optimization. This essential script provides database administrators …

How to Monitor Oracle Shared Pool Usage with V$SGASTAT Database Administrators (DBAs) frequently need to track memory allocation inside Oracle’s SGA (System Global Area), especially within the Shared Pool. Monitoring the shared pool helps identify memory fragmentation, excessive parsing, and potential memory-related …