Keyword Analysis & Research: define data integrity in dbms


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Frequently Asked Questions

What is data integrity in databases?

The term data integrity refers to the accuracy and consistency of data. When creating databases, attention needs to be given to data integrity and how to maintain it. A good database will enforce data integrity whenever possible.

What are the data integrity constraints that the DBMS maintains?

Integrity constraints that the DBMS maintains are the business rules that are defined by the enterprise. The DBMS should have the capability to enforce data integrity for all the applications that use the data. Data integrity rules defined centrally in the database is independent of the applications that use the database.

What is entity integrity in SQL?

Entity integrity defines each row to be unique within its table. No two rows can be the same. To achieve this, a primary key can be defined. The primary key field contains a unique identifier – no two rows can contain the same unique identifier.


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