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@@ -185,3 +185,13 @@ Following are some of the most commonly used constraints available in SQL −
− Used to create and retrieve data from the database very quickly.
# Data Integrity 🚧
- The following categories of data integrity exist with each RDBMS −
**Entity Integrity − There are no duplicate rows in a table.**
**Domain Integrity − Enforces valid entries for a given column by restricting the type, the format, or the range of values.**
**Referential integrity − Rows cannot be deleted, which are used by other records.**
**User-Defined Integrity − Enforces some specific business rules that do not fall into entity, domain or referential integrity.**