relational-database Magic Quiz

Test your knowledge of relational-database by answering this quiz!
Question 1 of 1

In relational databases, what is a primary key?


  • A primary key is the database column that's created first.
  • A primary key is a special column (or combination of columns) designated to uniquely identify each table record.
  • A primary key is the database row that's created first.
  • A primary key is a secret code that allows you to access the DB.
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