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  • What is the difference between a primary key and foreign key in a database 2024?

    databases foreign key foreign key

    Questioner：Julian Morris 2023-05-05 12:03:24
The most authoritative answer in 2024

  • Oliver Cooper——Works at IBM, Lives in Austin. Graduated from University of Texas at Austin with a degree in Computer Science.

    In the context of relational databases, a foreign key is a field (or collection of fields) in one table that uniquely identifies a row of another table or the same table. In simpler words, the foreign key is defined in a second table, but it refers to the primary key or a unique key in the first table.read more >>
    +119962023-05-15 12:03:24

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