Question

what are the two integrity rules used in DBMS?

Answer 1

The following three integrity constraints are used in a relational database structure to achieve data integrity: Entity Integrity: This is concerned with the concept of primary keys. The rule states that every table must have its own primary key and that each has to be unique and not null.

Answer 2

Answer:

$\huge\mathbb\fcolorbox{purple}{lavenderblush}{✰Answer}$

Types of Integrity Constraint

• Domain constraints. Domain constraints can be defined as the definition of a valid set of values for an attribute. ...
• Entity integrity constraints. The entity integrity constraint states that primary key value can't be null. ...
• Referential Integrity Constraints. ...
• Key constraints.