On which of the following database objects may the Select Privilege be controlled?

  1. Sequence

  2. Schema

  3. Group

  4. View


Correct Option: D

AI Explanation

To answer this question, we need to understand the concept of privileges in a database.

In a database system, privileges are permissions that control the access and actions that users can perform on database objects. The Select Privilege specifically controls whether a user can retrieve data from a database object.

Let's go through each option to understand why it is correct or incorrect:

Option A) Sequence - Sequences in a database are used to generate unique numeric values. However, the Select Privilege does not apply to sequences as they do not store data that can be retrieved using the SELECT statement.

Option B) Schema - A schema is a logical container for database objects. It does not store data itself, but rather organizes and provides a namespace for objects. The Select Privilege does not apply to schemas because they do not store data to be retrieved.

Option C) Group - A group in a database is a logical collection of users. The Select Privilege cannot be controlled at the group level. Privileges are typically granted to individual users or roles, not groups.

Option D) View - A view is a virtual table that is derived from one or more tables or other views. It presents a subset of the data stored in the underlying tables. The Select Privilege can be controlled on a view because it determines whether a user can retrieve data from the view using the SELECT statement. This makes Option D the correct answer.

Therefore, the correct answer is Option D) View. The Select Privilege can be controlled on views to determine whether users can retrieve data from them.

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