What is data integrity and consistency in a distributed database?

Distributed Databases Questions



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What is data integrity and consistency in a distributed database?

Data integrity refers to the accuracy, completeness, and reliability of data stored in a distributed database. It ensures that the data remains consistent and valid throughout the database system. Data integrity is maintained through various mechanisms such as data validation rules, constraints, and error detection and correction techniques.

Consistency, on the other hand, refers to the state where all copies of data in a distributed database are synchronized and reflect the same value. It ensures that all transactions in the database follow a set of predefined rules and constraints, maintaining the correctness and validity of the data. Consistency is achieved through techniques like distributed concurrency control and distributed transaction management protocols.