Answer / vani

it is a primary key which is referenced to another table

Answer / manoj pandey

Foreign Key is used to establish Referential Integrity/Constraint between 2 tables. Mainly it is a column in a table that uniquely identifies every record in another table. A table can have 1 or more than 1 FKs.

~Manoj (sqlwithmanoj.wordpress.com)

Answer / pravati

foreign key of one table points to a primary key of another table.

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