Which of the Following Relational Algebra Commands or Combination of Commands

question 3

Multiple Choice

Which of the following relational algebra commands or combination of commands is capable of retrieving a single cell value from the integrated result of two relations?

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

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Definitions:

Developing Norms

Rules or standards of behavior that are evolving or being established within a group or society.

Immediate Family

Consists of one's closest relatives, such as parents, siblings, and children, often considered the first social unit an individual belongs to.

Subjective Validity

The perception that a belief or opinion is true based on personal experiences and emotions.

Social Norms

Rules that a group uses for appropriate and inappropriate values, beliefs, attitudes, and behaviors.