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. …
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$AT_OS_OPT_SY_<number>,” is specific to the job causing the problem. During the 12c database creation process , you can see ORA-12012 …
ORA-12012: error on auto execute of job SYS.ORA$AT_OS_OPT_SY_ Read More »
Introduction When it comes to managing an Oracle Real Application Clusters (RAC) database, proper shutdown procedures are crucial to maintain data integrity and prevent potential issues. In this short blog post, we’ll guide you through the step-by-step process of shutting down an Oracle RAC DB in sequence using commands, ensuring a smooth and safe shutdown. …
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 …
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 …
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 …
Creating/Dropping an Undo Tablespace in Oracle Database Read More »
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 …
