Category: Database

Master SQL, PostgreSQL, MySQL, MongoDB, and trending open-source databases. Learn optimization, design patterns, and best practices for modern data management.

Oracle Database Patching: Common Steps

4 min read · December 28, 2024

Introduction This document outlines the essential steps for Oracle Database patching. It includes pre-checks, patch installation instructions, and post-patching validation steps. Always…

How to Find Oracle Database Size

2 min read · December 27, 2024

This post provides SQL queries to find the size of an Oracle database, including the total database size, data size, used and…

How to Resolve a Hung AWR Process in Oracle

2 min read · December 27, 2024

If you encounter a hung AWR (Automatic Workload Repository) process in Oracle, you may need to identify and terminate the associated session.…

Generate AWR, ASH, ADDM Reports from SQL Prompt

2 min read · December 27, 2024

In Oracle databases, performance reports like AWR (Automatic Workload Repository), AWRDD (AWR Daily), ASH (Active Session History), and ADDM (Automatic Database Diagnostic…

Understanding the Find Command

2 min read · December 27, 2024

Learn how to efficiently search and manage files with the find command. This post covers essential examples for finding, deleting, and compressing…

How to Check Hidden Parameters in Oracle

4 min read · December 27, 2024

In Oracle databases, many parameters are designed to be hidden from users to ensure that they don’t accidentally modify critical settings. These…