RMAN

Oracle 23ai New Backup & Recovery Features

In this article I will give a short overview of some Backup & Recovery features in the new Oracle 23ai database. Meanwhile there are more than 300 new features in Oracle 23ai most of them reflecting artificial intelligence. I will(…)

Considerations when backing up from the Oracle Standby Database (Data Guard) with rman to shared storage (NFS)

To reduce load on the Primary DB in a Data Guard configuration you may decide to do your rman backups from the Standby site. A very common approach today is to use NFS as the backup location, especially when using(…)

Active Duplicate from standby database

By Mouhamadou Diaw Generally we do active duplicate from primary database, but I think it should be fine to see what happen if we do active duplicate a database from a standby database. So, I do some tests and I(…)

5 things that aren’t true about RMAN

Introduction RMAN backups are not a hot topic today. This is because it didn’t evolve that much in 12c/18c/19c, and most of the databases are now protected by a good backup strategy since years, and no changes are needed. Furthermore,(…)

Migrating Oracle database from windows to ODA

Nowadays I have been working on an interesting customer project where I had to migrate windows oracle standard databases to ODA. The ODAs are X7-2M Models, running version 18.5. This version is coming with Red Hat Enterprise Linx 6.10 (Santiago).

Oracle 19c : Point-In-Time Recovery in a PDB

By Mouhamadou Diaw Point-In-Time Recovery is also possible in a multitenant environment. As in Non-CDB, a recovery catalog can be used or not. In this blog we will see how to recover a dropped tablespace in a PDB. We will(…)

RMAN in a Multitenant Environment

By Mouhamadou Diaw The Oracle Multitenant architecture came with Oracle 12c a few years ago. For people usually working with traditional Non-CDB database it might be confusing the first time to do Backup and Recovery with pluggable databases (PDBs)(…)

Useful Linux commands for an Oracle DBA

Introduction Oracle & Linux is a great duet. Very powerfull, very scriptable. Here are several commands that make my life easier. These tools seems to be widespread on most of the Linux distributions. watch with diff It’s my favorite tool(…)

RMAN PITR recover table Oracle 12c

At one client’s site, I had to restore a table someone had partially deleted one week before. Before Oracle 12c, we had to duplicate the target database to another server, and then to export and import data to the(…)

RMAN catalog upgrade, why, when and how

One of our customer has been initially creating a RMAN catalog on an Oracle database release 12.1.0.2.0 and was now intending to register new Oracle 12.2.0.1.0 databases. Registering the databases will be failing with errors : PL/SQL package RCAT.DBMS_RCVCAT version 12.01.00.02(…)