为自己加油

Choose two.
You are managing this configuration:
1-. CDB1 is a container database.
2-. PDB1 and PDB2 are two pluggable databases in CDB1.
3-. USER1.EMP is a table in PDB1 and USER2.DEPT is a table in PDB2 .
CDB1 user SYS executes these commands after connecting successfully to PDB2:
SQL> ALTER SESSION SET CONTAINER=pdb1;
Session altered.
SQL> INSERT INTO user1.emp VALUES (100, 'Alan' ,1) ;
1 row created.
SQL> INSERT INTO user1.emp VALUES (101, 'Ben' ,1) ;
1 row created.
SQL> ALTER SESSION SET CONTAINER=pdb2;
Session altered.
SQL> INSERT INTO user2.dept VALUES(1, 'IT');
Which two are true?
Which two are true? (Choose two.)

A.The inserts on USER1.EMP remain uncommitted when the session connected to PDB2.
B.The inserts on USER1.EMP were committed when the session inserted a row into USER2. DEPT.
C.The insert on USER2.DEPT fails because of the active transaction in the parent container.
D.The insert on USER2.DEPT is a recursive autonomous transaction by the child session and is committed.
E.The inserts on USER1.EMP were rolled back when the session connected to PDB2.
F.The insert on USER2.DEPT is uncommitted.
G.The inserts on USER1.EMP were committed when the session connected to PDB2.