चुनमुन ने मम्मी को क्या सुझाव दिया?
Answers
Answer:
Referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
Image result for what is referential integrity
View all
Referential integrity is a property of data stating that all its references are valid. In the context of relational databases, it requires that if a value of one attribute of a relation references a value of another attribute, then the referenced value must exist.