Referntial Integrity Constraints

Practice Referntial Integrity Constraints – The number of attributes in relation is called as its …………………

Practice Referntial Integrity Constraints –

………………. is a preferred method for enforcing data integrity.

Practice Referntial Integrity Constraints – Three SQL, DDL, CREATE commands are ________ .

Practice Referntial Integrity Constraints –

The rule that a value of a foreign key must appear as a value of some specific table is called a 

Practice Referntial Integrity Constraints –

If an entity can belong to only one lower level entity then the constraint is 

Practice Referntial Integrity Constraints –

What is a disjoint less constraint?