Oracle has announced around 200 new innovations in Oracle Database 21c on 13th Jan, 2021. This database version is readily available in Oracle Cloud....
While exporting a LOB table, we often face issue of undo_retention as follows.
ORA-31693: Table data object ""."" failed to load/unload and is being...
Data Dictionary Architecture in CDB and PDB
From the user and application perspective, the data dictionary in each container in a CDB is separate, as...
Oracle introduced the multitenant architecture in 2013 with Oracle Database 12c version release. It consists of CDB(Container Database) and PDB (Pluggable Database). Only one...
Database monitoring is an integral part of Database Administrator's everyday work. We all execute many queries to check health status of the database instances....
