This guide outlines step‑by‑step procedures for diagnosing Oracle database performance problems, covering how to collect ADDM, AWR, and ASH reports, capture high‑CPU error stacks, obtain 10046 trace files for single or multiple sessions, and use Oracle hang‑analysis documents to differentiate true hangs from CPU spinning.
This article walks through using ADDM to pinpoint problematic SQL statements in Oracle, creating and executing a SQL Tuning Advisor task, evaluating profile and index recommendations, and applying parallel execution to dramatically improve performance and resource usage.
This article provides a comprehensive guide to Oracle performance tools—including AWR, ASH, ADDM, AWRDD, and AWRSQRPT—explaining how to obtain and interpret their reports, key metrics to monitor, and real‑world case studies that illustrate effective database optimization for both simple and complex scenarios.
This article explains Oracle database performance tuning by introducing the five key performance reports—AWR, ASH, ADDM, AWRDD, and AWRSQRPT—detailing how to obtain them, what metrics to focus on, and how to apply them in real‑world case studies for both simple and complex optimization scenarios.
This article explains how Oracle wait events, especially latch contention such as cache buffers chains and LRU chain latches, reveal performance bottlenecks, and provides step‑by‑step methods, diagnostic tools, SQL examples, and tuning recommendations to locate and resolve database hotspots.
