Understanding Oracle DB Character Set (CHARSET)
In Oracle Database, a character set (CHARSET) determines how characters—such as letters, numbers, and symbols—are encoded into bytes for storage and retrieval.…
What is Sudo Access for Oracle DBAs and Why It’s Important
Sudo access is essential for Oracle Database Administrators (DBAs) working in Unix/Linux environments. It allows DBAs to perform critical system tasks, such…
Understanding the oratab File in Oracle: Role and Usage
Understanding the oratab File in Oracle
Script to Track Top 10 CPU-Consuming Oracle Sessions
In Oracle database performance tuning, identifying resource-intensive sessions is crucial. A well-crafted query provides insights into active sessions, highlighting CPU usage, disk…
Kill or Disconnect Oracle Session in Single Instance & RAC
Managing sessions in Oracle databases is essential for database administrators. This guide provides concise commands for both single-instance and RAC (Real Application…
Identify and Terminate Active Statistics Collection Job in Database
Learn how to handle statistics collection jobs that remain active in your Oracle database. This guide provides step-by-step instructions for identifying active…
What is a .PAR File and How It Works
A .PAR file (short for Parameter file) is a text file used to define parameters for Oracle utilities like Data Pump Export…
How to Resolve ORA-01653: Unable to Extend Table in Tablespace
If you’ve worked with Oracle databases, you might have encountered the error: This error indicates that Oracle couldn’t allocate enough space in…
How to Find When a User’s Password Was Last Changed in Oracle
Someone reported a login error: If you suspect a password change has occurred without notification, you can quickly verify the last password…
Backing Up Oracle Directories and Grants
Backing up Oracle directory definitions and associated grants is essential for efficient database management. Here are the concise steps to back up…
How to Fix ORA-01536: Space Quota Exceeded Error in Oracle
The error ORA-01536: space quota exceeded for tablespace occurs in Oracle when a user tries to perform an operation (e.g., insert, update)…
Fixing Index Ownership Issues in Oracle
Index ownership inconsistencies in Oracle databases can cause performance and maintenance challenges, especially when indexes are created under the wrong schema. This…
How to Create an SQL Baseline for a Specific SQL_ID
Learn how to create an SQL baseline for a specific SQL_ID to stabilize execution plans and ensure consistent query performance in Oracle…
How to Get DDL for Oracle Objects
Learn how to retrieve DDL (Data Definition Language) statements for Oracle objects like tables, views, and indexes. This guide provides step-by-step methods…
A Comprehensive Guide to Fast Recovery Area (FRA) in Oracle
The Fast Recovery Area (FRA) in Oracle is a dedicated location for storing recovery-related files such as backups, redo logs, and archived…