Discuss the concepts of authorization and privileges in database systems. What are the key differences between these two concepts?

Describe the process of granting permission to a user for accessing or performing actions within a database. What factors should be considered when assigning permissions?

Explain the importance of implementing a robust database design and normalization. How do these practices contribute to the security and efficiency of a database system?

Discuss the act of explicitly denying a user access or the ability to perform certain actions within a database. When and why would you take such measures?

Outline the process of revoking or reversing a previously granted or denied privilege when a person leaves an organization. What steps should be taken to ensure database security and maintain data integrity?