1z0-497 Exam Dumps : Oracle Database 12c Essentials

There is only one SYSTEM tablespace per CDB.

There is only one instance per PDB.

There is a set of redo log files per PDB.

There is only one UNDO tablespace per CDB.

There is one SYSAUXtablespace per PDB.

create local role l_hr;

create role c##_hr container=current;

create role l_hr container=current;

create role l_hr container=all;

a solution that provides zero-data-loss protection at any distance without impacting database performance

a solution for disaster protection and database rolling upgrades for a mission-critical OLTP database, where you also want to extract data from a data guard primary database for ETL update o' an enterprise data warehouse

a solution requiring minimal planned downtime and risk, using standby first patching, database rolling upgrades, and select platform migrations

a solution that helps with integrated automatic database and client failover between source and target, where you also need to establish advanced replication (such as multi master and bidirectional replication and data transformations)