db"orq"

1. CDB1 is an Oracle Database 12c Release 2 container database (CDB).

2. PDB1 and PDB2 are two pluggable databases (PDBs) in CDB1.

After successfully performing all the preupgrade tasks, you execute these commands from the Oracle Database 18c environment:

$$ export ORACLE_SID=cdb1

$$ sqlplus/ as sysdba

SQL> STARTUP UPGRADE;

SQL> SHOW pdbs

（含图）

SQL> ALTER PLUGGABLE DATABASE pdb1 OPEN UPGRADE;

Pluggable database altered.

SQL> exit

$$ $$ORACLE_HOME/perl/bin/perl catctl.pl -C 'PDB2'

What is the outcome?

No application PDBS and no application seed have yet been created in HR_ROOT

An application PDB, PDB1, must be created so that the HR App applications common objects are

accessible to it.

Which two methods can be used?

sqlplus system/ oracle

...

SQL> col name for a10

SQL> select name, open_mode from v$pdbs;

（含图）

SQL> exit

Next you execute:

expdp system/oracle full=y

What is the outcome?

Manager(RMAN)?

standard output?

RMAN> BACKUP RECOVERY AREA FORCE

Which three are true?

and the Manageability Monitor(MMON) background process?