Which type of key uniquely defines each table row in a relational database?

IT Exam Items RepositoryCategory: Data Analytics EssentialsWhich type of key uniquely defines each table row in a relational database?

Which type of key uniquely defines each table row in a relational database?

  • foreign key
  • primary key
  • principal key
  • JOIN key

Explanation: The primary key uniquely identifies a row (record) in a table. The primary key can be a single attribute (column) or a combination of multiple attributes.

Related exam: Module 7.5.2 Quiz - Introduction to Structured Queries