All the database users are presently connected to the database instance and working. The
HR user has opened three database sessions and executed the following command in one
of his sessions: SQL> UPDATE persons SET ccode=’U031′ WHERE ccode=’U029′; 123
rows updated. SQL> DELETE FROM persons WHERE exp=’Y’; 3 rows deleted. The SYS
user opens a new session after HR executed the above commands. Which sessions can
see the effect of the UPDATE and DELETE commands?
A.
All sessions of the HR user only
B.
All sessions of the HR user and the SYS user
C.
The session of the HR user that executed the commands
D.
All the sessions for which the database users have access privilege to the PERSONS
table