Question

explain the use of foreign key in htm

Answer 1

Explanation:

A FOREIGN KEY is a key used to link two tables together. A FOREIGN KEY is a field (or collection of fields) in one table that refers to the PRIMARY KEY in another table. The table containing the foreign key is called the child table, and the table containing the candidate key is called the referenced or parent table.

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Answer 2

Explanation:

FOREIGN KEY is a key used to link two tables together. A FOREIGN KEY is a field (or collection of fields) in one table that refers to the PRIMARY KEY in another table. The table containing the foreign key is called the child table, and the table containing the candidate key is called the referenced or parent table.

Primary Keys and Foreign Keys in Microsoft Access. ... The term Foreign Key (FK) in a Relational Database System refers to a field that in a table that stores values from a Primary Key field in another table, to relate the two records to each other.