CBSE Class 12 Computer Science Question 9 of 22

Relational Databases — Question 13

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13
Question

Question 6(ii)

Define foreign key.

Answer

A non-key attribute, whose values are derived from the primary key of some other table, is known as foreign key in its current table.


Source: This question is from Relational Databases, Computer Science — Class 12, CBSE Board.

Key Concepts Covered

This question tests your understanding of the following concepts from the chapter Relational Databases: Question, Foreign, Key, Relational Databases, Computer Science. These are fundamental topics in Computer Science that students are expected to master as part of the CBSE Class 12 curriculum.

A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Science papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.

How to Approach This Question

Read the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.

Key Points to Remember

  • Write programs with proper indentation and comments.
  • Trace through your code with sample inputs to verify correctness.
  • Explain the logic behind each step of your solution.
  • Familiarise yourself with common library functions and methods.

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