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What Is An Integrity Constraints? What Are Different Types Of Integrity Constraints?

Answer»

An integrity constraint is nothing but a specific requirement that the data in the database has to MEET. It is nothing but a business RULE for a particular COLUMN in a table. In the data WAREHOUSE concept, they are 5 integrity constraints.

The following are the integrity constraints:

  1. Null
  2. Unique key
  3. PRIMARY key
  4. Foreign key
  5. Check

An integrity constraint is nothing but a specific requirement that the data in the database has to meet. It is nothing but a business rule for a particular column in a table. In the data warehouse concept, they are 5 integrity constraints.

The following are the integrity constraints:


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