Data IntegrityThere are the following categories of data integrity exist with each RDBMS:Entity integrity: It specifies that there should be no duplicate rows in a table.Domain integrity: It enforces valid entries for a given column by restricting the type, the format, or the range of values.Referential integrity: It specifies that rows cannot be deleted, which are used by other records.User-defined integrity: It enforces some specific business rules that are defined by users. These rules are different from entity, domain or referential integrity.

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trilok sharma · Accepted Answer

Data IntegrityThere are the following categories of data integrity exist with each RDBMS:Entity integrity: It specifies that there should be no duplicate rows in a table.Domain integrity: It enforces valid entries for a given column by restricting the type, the format, or the range of values.Referential integrity: It specifies that rows cannot be deleted, which are used by other records.User-defined integrity: It enforces some specific business rules that are defined by users. These rules are different from entity, domain or referential integrity.

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