Oracle 21C

How to Setup Dataguard on PDB Level (DGPDB)

Introduction One of the long requested features in case of Multitenant was the possibility to create and manage a data guard configuration on pdb level. Now with the Release Update 21.6 this was finaly implemented and the name(…)

Configure DB System Oracle 21c in a ODA 19.14

By Mouhamadou Diaw One question we may ask is that if it is possible to deploy an Oracle 21c database in an ODA as the latest version for ODA is actually 19.x The answer is Yes. Since ODA release(…)

Oracle Data Guard : Where to Host The Master Observer

By Mouhamadou Diaw An observer is an OCI client that connects to the primary and target standby databases using the same SYS credentials you used when you connected to the Oracle Data Guard configuration with DGMGRL. The observer is(…)

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(…)

PDB Snapshot Carousel with Oracle 21c

By Mouhamadou Diaw In a previous blog , I talked about refreshable PDB technology which can be used to refresh a target PDB. We have seen here how the target refreshable PDB(…)

Pluggable Database Snapshots with Oracle 21c

By Mouhamadou Diaw In a previous blog , I talked about refreshable PDB technology which can be used to refresh a target PDB. The target PDB can be in mounted state (mandatory to be refreshed) or(…)

Managing Refreshable Clone Pluggable Databases with Oracle 21c

By Mouhamadou Diaw A refreshable clone PDB is a way to refresh a single PDB instead of refreshing all PDBs in a container as in a Data Guard environment. It consists to make a clone of a source PDB and(…)

Character Sets and Oracle 21c PDBs : How It Works

By Mouhamadou Diaw When creating a database in a multitenant environment we must understand how character set works for CDB and PDBS. In Oracle documentation we can find following lines -When the character set of(…)

Clone Oracle 21c Home

By Mouhamadou Diaw When deploying new Oracle Home on the same server or on a new server, you may use the downloaded Oracle binaries and do an install from scratch as usual. You may then apply any patch you have(…)

Oracle 21C Security : diagnostics_control and enable diagnostics

By Mouhamadou Diaw Some debug-events and debug-actions are not safe and should be exposed to users with caution. In previous releases, privilege control for the usage of these diagnostics was not sufficient. With Oracle 21c, regular users can be blocked(…)