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

Isabella Hall | 2023-05-05 12:03:24 | page views：1521
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Harper Johnson

Studied at the University of Edinburgh, Lives in Edinburgh, Scotland.
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.
2023-05-11 12:03:24
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Benjamin Davis

QuesHub.com delivers expert answers and knowledge to you.
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.
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