Oracle Database Query to Find Tables with Outdated Statistics - Monitor Analyze Progress
Jul 1, 2025 · 3 min read · dba_tables oracle database dba statistics performance monitoring sql tuning ·Oracle Database Query: Find Tables with Outdated Statistics Purpose This Oracle Database query helps database administrators monitor the progress of table statistics collection by identifying tables that have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 …
Read MoreShow a Count of Analyzed Tables Broken Down by Schema in Oracle Database Purpose: This post explains how to use Oracle SQL to report the total number of tables and the number of analyzed tables for each schema in your Oracle Database. This is crucial for database administrators who want to monitor the health and …
Read MoreOracle PLAN_TABLE Setup and EXPLAIN PLAN Usage Guide
Jun 29, 2025 / · 4 min read · oracle database sql performance optimization explain-plan query-tuning dba ·What is the Oracle PLAN_TABLE and how do you use it? Oracle's PLAN_TABLE is a fundamental component for SQL performance analysis and query optimization. This comprehensive guide explores the setup, usage, and best practices for leveraging Oracle's execution plan functionality to optimize database performance. SQL Code …
Read MoreOracle Database: Mastering DBMS_STATS.DELETE_STATS Procedures
Jan 16, 2025 / · 2 min read · Oracle Database Performance Tuning SQL Database Administration Statistics Management DBMS_STATS ·Oracle Database: Deleting Statistics with DBMS_STATS Package The Oracle Database DBMS_STATS package provides powerful procedures for managing database statistics. This post explores the delete_stats procedures, which are crucial for maintaining accurate query optimization. Understanding DBMS_STATS.DELETE_STATS …
Read MoreOptimizing Oracle Database Performance with GATHER_SYSTEM_STATS
Jan 15, 2025 / · 2 min read · Oracle Database Performance Tuning SQL Database Administration Query Optimization GATHER_SYSTEM_STATS DBMS_STATS ·Optimizing Oracle Database Performance with GATHER_SYSTEM_STATS Oracle Database's DBMS_STATS package is a powerful tool for gathering and managing database statistics. This post focuses on the GATHER_SYSTEM_STATS procedure, which is crucial for optimizing query performance by collecting system-level statistics. …
Read MoreIdentifying Oracle Database Hot Blocks using Oracle table v$system_event A Comprehensive Guide
Oct 1, 2024 / · 2 min read · oracle-database performance-tuning sql troubleshooting optimization v$system_event ·Identifying Oracle Database Hot Blocks using Oracle Table v$system_event: A Comprehensive Guide Purpose Understanding Hot Blocks In an Oracle database, a "hot block" refers to a data block in the buffer cache that experiences a disproportionately high volume of concurrent requests. This contention can lead to …
Read MoreAnalyzing Oracle 'Data Block' Waits with v$waitstat
Sep 30, 2024 / · 2 min read · oracle database performance tuning sql troubleshooting optimization v$waitstat ·Oracle "Data Block" Waits using Oracle table v$waitstat to identify disk Contention Purpose In Oracle databases, waiting for "data blocks" signifies contention for specific data blocks in memory. This contention can lead to performance bottlenecks and slowdowns. Understanding the root cause of these waits is crucial to …
Read MoreAnalyzing Oracle 'Buffer Busy Waits' with v$session_wait
Sep 29, 2024 / · 2 min read · oracle database performance tuning sql troubleshooting optimization v$session_wait ·Unmasking Buffer Busy Waits in Oracle: A Deep Dive with v$session_wait Purpose "Buffer busy waits" are a common performance bottleneck in Oracle databases, occurring when multiple sessions try to access the same data block concurrently. Identifying the specific blocks and understanding the reasons behind these waits is …
Read MoreAnalyzing Oracle Performance Statistics with v$statname and v$sysstat
Sep 28, 2024 / · 2 min read · v$statname v$sysstat Oracle Database Performance Tuning SQL Monitoring Optimization ·Analyzing Oracle Performance Statistics with v$statname and v$sysstat Purpose Monitoring and understanding your Oracle database instance's performance is crucial for maintaining optimal efficiency. Oracle provides dynamic performance views, such as v$statname and v$sysstat, to access a wealth of performance statistics. …
Read MoreOracle Segment Waits In-Depth Code Analysis and Insights using v$segment_statistics
Demystifying Oracle Segment Waits: In-Depth Code Analysis and Insights Using Oracle Table v$segment_statistics Purpose In the realm of Oracle database performance tuning, understanding segment waits is crucial. Waits indicate areas where processes are contending for resources, potentially leading to bottlenecks. The …
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