Which of the Following Relational Operations Extracts Entire Columns from a Relation

question 45

Multiple Choice

Which of the following relational operations extracts entire columns from a relation?

• A) SELECT
• B) PROJECT
• C) JOIN

Understand the differences, advantages, and disadvantages between structured and free-form slides in business presentations.

Appreciate the impact of presentation design on audience engagement and message delivery.

Understand the principles of slide design to avoid cognitive overload and enhance message retention.

Acknowledge the role of technological tools like screencasting in business communication.

---

Definitions:

Exchange

denotes the act of giving one thing and receiving another between parties, often in the context of goods, services, or information.

Compliance

The act of conforming to or following rules, standards, or laws, or the state of being in accordance with established guidelines or specifications.

Cooperation

The process of working together towards the same end or to accomplish a shared goal.

Structuring

The act of organizing or arranging various elements into a systematic or coherent layout or framework.