Data Consistency and Integrity: Relational databases enforce data integrity through constraints such as primary keys, foreign keys, and data types. These constraints ensure that data is accurate, valid, and consistent across tables. For example, a foreign key constraint can prevent the creation of orphaned records by ensuring that a record in one table refers to an existing record in another table.
Data Consistency and Integrity: Relational databases enforce data integrity through constraints such as primary keys, foreign keys, and data types. These constraints ensure that data is accurate, valid, and consistent across tables. For example, a foreign key constraint can prevent the creation of orphaned records by ensuring that a record in one table refers to an existing record in another table.
Principles of Information Systems (MindTap Course List)
13th Edition
ISBN:9781305971776
Author:Ralph Stair, George Reynolds
Publisher:Ralph Stair, George Reynolds
Chapter5: Database Systems And Big Data
Section: Chapter Questions
Problem 2SAT
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