How would you add a foreign key constraint on the dept_no column in the EMP table, referring to the id column in the DEPT table?

Question

How would you add a foreign key constraint on the dept_no column in the EMP table, referring to the id column in the DEPT table?
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Solution 1

To add a foreign key constraint on the dept_no column in the EMP table, referring to the id column in the DEPT table, you would use the ALTER TABLE statement in SQL. Here are the steps:

  1. First, ensure that the DEPT table has a primary key on the id column. If it doesn't, you can add Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob
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Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
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