Question: What is the difference between cardinality rules and data integrity rules? Cardinality rules define the quantity of each entity instance that can participate in a

What is the difference between cardinality rules and data integrity rules?
Cardinality rules define the quantity of each entity instance that can participate in a relationship between two entities and data integrity rules ensure valid values.
Referential integrity rules define the quantity of elth entity instance that can participate in a relationship between two entities and cardinality rules ensure valid values.
Referential integrity rules only appear on a relational data model and cardinality rules only appear on a dimensional data model.
There is no difference. Cardinality rules and Referential integrity rules are synonyms.
What is the difference between cardinality rules

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