If the AS OF TIMESTAMP clause cannot retrieve the required data due to insufficient undo retention, you can restore a single table from a backup using Oracle RMAN. This guide provides a complete step-by-step approach to restore a single table effectively. Preparation for Table Restoration Before starting the restoration process, [...]
Database consolidation is a process of combining multiple databases into a single, unified database system. This approach has been increasingly popular among organizations in recent years, particularly those leveraging Oracle Database. Today, we will delve into the benefits, challenges, and best practices associated with Oracle Database consolidation. By the end [...]
An In-Depth Look at the ORA-00604 Error in Oracle Databases The Oracle Database is a powerful and feature-rich relational database management system that is widely used in many industries. However, as with any complex system, errors can and do occur. One such error that can be particularly frustrating to troubleshoot [...]
In Oracle databases, there are times when you need to view data as it was at a specific point in the past. The AS OF TIMESTAMP clause allows you to achieve this by leveraging Oracle’s Flashback Query feature. This guide will show you how to use AS OF TIMESTAMP [...]
If you’re encountering issues with your Oracle Pluggable Database (PDB) opening in restricted mode, you’re not alone.This situation can hinder your database operations, but fortunately, there are structured solutions to address it. In this article, we’ll walk you through the common causes and provide step-by-step instructions to resolve the ORA-01035 [...]
When working with Oracle Database, particularly in environments utilizing Pluggable Databases (PDBs), you may encounter the ORA-65177 error when trying to open a PDB. This article explains the common causes of this error and provides practical solutions to resolve it. Understanding ORA-65177 Error The ORA-65177 error typically occurs due to [...]
Efficient resource management is crucial in environments where multiple Oracle databases share the same hardware resources. Oracle Instance Caging is a feature that enables you to control CPU usage at the database instance level, ensuring that each database gets its fair share of CPU resources. In this guide, we will [...]
Maintaining a synchronized standby database is essential for disaster recovery and high availability in Oracle Database environments. A standby database acts as a replica of the primary database, ready to take over operations in case of failure, ensuring minimal downtime and data loss. In this comprehensive guide, we outline the [...]
When dealing with Oracle databases, administrators often encounter various error codes, and one of the more frustrating ones is the ORA-24247 error. This error typically occurs when there is an issue with the Oracle XML DB repository or with the Oracle Database registry. In this article, we will delve into [...]
In this comprehensive guide, we’ll walk you through the process of installing and configuring a two-node Oracle Real Application Clusters (RAC) environment using Oracle Database 21c on the latest version of Oracle Linux. We’ll cover everything from hardware requirements and kernel parameters to installing binaries and configuring Automatic Storage Management [...]