Question

____ are some rules that help and ensure the validity of the data while entering it in a table​

Answer 1

Answer:

 A referential integrity rule is a rule defined on a key (a column or set of columns) in one table that guarantees that the values in that key match the values in a key in a related table (the referenced value).

Explanation:

This is your answer please give me a point please make me brainless I hope I can help you