Oracle Training Reuse Scheduler components for similar tasks - mcyla.org

Oracle Database 10g: SQL Fundamentals I

Oracle Training Reuse Scheduler components for similar tasks

When should you create a role? (Choose two)

A. To simplify the process of creating new users using the CREATE USER xxx IDENTIFIED by yyy
statement.
B. To grant a group of related privileges to a user.
C. When the number of people using the database is very high.
D. To simplify the process of granting and revoking privileges.
E. To simplify profile maintenance for a user who is constantly traveling.

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Answer: C, D

Explanation:
You should use roles to grant a group of privileges to a user. You grant the appropriate privileges to the role
and after that grant this role to specific users. By granting to or revoking privileges from the role you can
simplify procedure of users privileges maintainance: you don't need to grant/revoke privileges to/from each
user. It's especially very helpful when you are experiencing a high number of people using the database.
Incorrect Answers
A: Roles have nothing to do with simplifying the process of creating new users.
B: You can use roles to grant a group of privileges to a user, but they can be not related at all.
E: Roles have nothing to do with user who is constantly traveling.
OCP Introduction to Oracle 9i: SQL Exam Guide, Jason Couchman, p. 365-372
Chapter 8: User Control in Oracle