Which of the Following Relational Algebra Commands or Combination of Commands

question 19

Multiple Choice

Which of the following relational algebra commands or combination of commands is capable of retrieving one or more columns of a relation?

• A) Select.
• B) Project.
• C) Join.
• D) Select and Project.
• E) Select, Project, and Join.

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Definitions:

Interacting

The act of communicating or working together with others which can influence thoughts, feelings, and behaviors.

Disturbance Handler

A role identified in Mintzberg's managerial roles, where a manager addresses unexpected issues and crises that arise, taking corrective action when necessary.

Resource Allocator

A role within management responsible for deciding how best to distribute resources to achieve organizational goals.

Decisional Roles

Refers to the specific responsibilities and duties of managers in making choices and decisions that affect the organization and its stakeholders.