Question

____________ refers to matching primary key value in parent table. *​

Answer 1

Answer:

Foreign Key

Explanation:

Referential integrity is the state of a database in which all values of all foreign keys are valid. A foreign key is a column or a set of columns in a table whose values are required to match at least one primary key or unique key value of a row in its parent table.

Answer 2

Answer:

forigen key..................