为自己加油

Choose the best answer. Examine this configuration:

 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 

CON_ID CON_NAME

OPEN MODE RESTRICTED

------------------------------------------------------

2 PDB$SEED  migrate  yes

3 PDB1 mounted  yes

4 PDB2 MOUNTED YES

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?

A.
It fails because PDB$SEED is in MIGRATE state.
B.
Only CDB$ROOT, PDB$SEED, and PDB1 are upgraded.
C.
Only CDB$ROOT, PDB$SEED, and PDB2 are upgraded.
D.
It fails because PDB2 is not in UPGRADE state.
E.CDB$ROOT, PDB$SEED, PDB1, and PDB2 are upgraded.
F.Only CDB$ROOT and PDB$SEED are upgraded.