OCP 1Z0 051 QUESTION NO: 56

QUESTION NO: 56

Examine these statements:

CREATE ROLE registrar;

GRANT UPDATE ON student_grades TO registrar;

GRANT registrar to user1, user2, user3;

What does this set of SQL statements do?

A. The set of statements contains an error and does not work.

B. It creates a role called REGISTRAR, adds the MODIFY
privilege on the STUDENT_GRADES

object to the role, and gives the REGISTRAR role to three users.

C. It creates a role called REGISTRAR, adds the UPDATE privilege on the STUDENT_GRADES

object to the role, and gives the REGISTRAR role to three users.

D. It creates a role called REGISTRAR, adds the UPDATE privilege on the STUDENT_GRADES

object to the role, and creates three users with the role.

E. It creates a role called REGISTRAR, adds the UPDATE privilege on three users, and gives the

REGISTRAR role to the STUDENT_GRADES object.

F. It creates a role called STUDENT_GRADES, adds the UPDATE privilege on three users, and

gives the UPDATE role to the registrar.

创建的角色名是registrar

SQL> CREATE ROLE registrar;
Role created

SQL> SELECT ROLE FROM dba_roles WHERE ROLE = UPPER('registrar');
ROLE
------------------------------
REGISTRAR
1 row selected

SQL> GRANT UPDATE ON student_grades TO registrar;
Grant succeeded

SQL> select * from role_tab_privs WHERE ROLE = UPPER('registrar');
ROLE                           OWNER                          TABLE_NAME                     COLUMN_NAME                    PRIVILEGE                                GRANTABLE
------------------------------ ------------------------------ ------------------------------ ------------------------------ ---------------------------------------- ---------
REGISTRAR                      TEST                           STUDENT_GRADES                                                UPDATE                                   NO
1 row selected

把该角色赋三个用户

SQL> select * from sys.dba_role_privs where granted_role='REGISTRAR';
GRANTEE                        GRANTED_ROLE                   ADMIN_OPTION DEFAULT_ROLE
------------------------------ ------------------------------ ------------ ------------
TEST                           REGISTRAR                      YES          YES
SH                             REGISTRAR                      NO           YES
SCOTT                          REGISTRAR                      NO           YES
HR                             REGISTRAR                      NO           YES
4 rows selected

Answer: C