Introduction In Oracle database management, ensuring the integrity and availability of control files is crucial. Multiplexing of control files is a vital step in safeguarding against potential failures. This process involves creating multiple copies of control files and storing them in separate locations, reducing the risk of data loss due to a control file failure….
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ORA-12012: error on auto execute of job SYS.ORA$AT_OS_OPT_SY_
Introduction ORA-12012 error is related to Oracle Database and is part of the Oracle Job Scheduler (DBMS_SCHEDULER). It usually occurs when an automatic task or job execution encounters an issue. The error message you’re seeing, “ORA$AT_OS_OPT_SY_<number>,” is specific to the job causing the problem. During the 12c database creation process , you can see ORA-12012…
Upgrade Oracle Database 12c to 19c (DBUA)
Introduction Upgrade Oracle Database is a crucial step to ensure you’re benefiting from the latest features, performance enhancements, and security updates. In this guide, we’ll walk you through the process of upgrading your Oracle Database 12c to the latest version, 19c. Follow these steps to ensure a smooth and successful upgrade Environment Hostname : prod.infoinflux.com…
Remove MGMTDB Database From RAC
Introduction In Oracle Real Application Clusters (RAC), the MGMTDB database plays a critical role in managing and monitoring the cluster itself. However, there might be situations where you need to remove the MGMTDB database. Whether it’s due to decommissioning, troubleshooting, or other reasons, this guide will walk you through the process of removing the MGMTDB…
Relocate MGMTDB Database To Another Node
Introduction Relocating a Management Database (MGMTDB) database to another node is a critical task in ensuring the smooth operation and management of your database environment. Whether you’re upgrading hardware, optimizing performance, or performing maintenance, this guide will walk you through the process to ensure a seamless transition. Follow these steps to successfully relocate your MGMTDB…
Generate DDL Of Tablespace
Introduction In Oracle databases, understanding how to generate DDL of tablespaces is essential for database administrators and developers. The DDL (Data Definition Language) statements allow you to recreate tablespaces in case of migration or disaster recovery scenarios. In this short blog, we’ll explore the syntax and steps to retrieve the DDL of a tablespace in…
Oracle Users Create & Unlock
Introduction In the world of database management, Oracle stands as one of the most robust and widely-used relational database systems. Managing user accounts efficiently is crucial for maintaining data security and integrity. In this blog post, we’ll walk you through the process of creating new users and unlocking existing ones in Oracle, complete with the…
Creating/Dropping an Undo Tablespace in Oracle Database
Introduction: In the realm of Oracle databases, managing storage and maintaining data integrity are crucial tasks. The Undo tablespace plays a pivotal role in maintaining transaction consistency and enabling data rollback. This SEO-friendly blog post will guide you through the process of creating and dropping an Undo tablespace in an Oracle database, complete with syntax…
Oracle Database Startup Modes
In Oracle, the “startup” command is used to start the Oracle Database instance after it has been shut down. There are different types of oracle database startup modes available, depending on the situation and the level of recovery required. Here are the common types of startup in Oracle: 1. Normal Startup This is the standard…