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What is the primary purpose of a foreign key in a database?

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Question: What is the primary purpose of a foreign key in a database?

Options:

  1. To uniquely identify a record
  2. To create a relationship between tables
  3. To enforce data types
  4. To index a table

Correct Answer: To create a relationship between tables

Solution: 

The primary purpose of a foreign key is to create a relationship between tables.

What is the primary purpose of a foreign key in a database?

Practice Questions

Q1
What is the primary purpose of a foreign key in a database?
  1. To uniquely identify a record
  2. To create a relationship between tables
  3. To enforce data types
  4. To index a table

Questions & Step-by-Step Solutions

What is the primary purpose of a foreign key in a database?
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