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What is FOREIGN key? How do …

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What is FOREIGN key? How do you define foreign key in your table?

Posted by S. K 3 years, 6 months ago

CBSE > Class 12 > Computer Science

1 answers

Sia ? 3 years, 5 months ago

A FOREIGN KEY is a field (or collection of fields) in one table, that refers to the PRIMARY KEY in another table. The table with the foreign key is called the child table, and the table with the primary key is called the referenced or parent table.

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CBSE > Class 12 > Computer Science