Monitoring PGA Usage by Username in Oracle Database Effective memory management is critical for Oracle Database administrators (DBAs) when diagnosing performance issues. Oracle uses the Program Global Area (PGA) for managing session memory, including operations like sorting, hashing, and storing session context. …

Oracle Database SGA Breakdown Script for Performance Monitoring Monitoring memory usage in an Oracle Database is one of the most important tasks for a DBA. The System Global Area (SGA) plays a crucial role in the performance of the database, as it stores data and control information used by Oracle processes. In this …

Oracle Database: Find Query Hash Value Using V$SQLAREA Finding specific SQL queries in Oracle Database can be challenging when dealing with large systems running thousands of statements. This guide demonstrates how to efficiently locate query hash values using the V$SQLAREA system view by searching for unique text …

Oracle Database Query: Find Tables with Outdated Statistics Purpose This Oracle Database query helps database administrators monitor the progress of table statistics collection by identifying tables that have analyze dates older than the current date. It's particularly useful when running large-scale ANALYZE operations …

Oracle Performance Tuning: Analyzing Latch Contention with "Time Waited for Latches" using Using Oracle Tables v$system_event and v$sysstat Purpose In the world of Oracle database performance tuning, identifying and resolving latch contention is critical for maintaining a responsive system. Latches are low-level …

Oracle Undo: A Deep Dive into DBA_UNDO_EXTENTS Unlock the secrets of Oracle's undo mechanism with this in-depth guide to the DBA_UNDO_EXTENTS view. Learn how to analyze undo tablespace usage, interpret extent statuses (ACTIVE, UNEXPIRED, EXPIRED), and gain valuable insights for proactive database management. Avoid …