What is Consistency in Database?
Consistency refers to the correctness & presence of the most recently updated data at any given moment in the database. The idea of having all-time access to purely consistent data is at the core of every relational database, it helps in maintaining the data integrity & accuracy as well.
Consistency implies that any changes made in the database must adhere to the rules specified in the beginning depending on the constraints, cascades, triggers, etc. It also means that consistency will enforce a mechanism where any changes made in any replica of the database, will be mirrored in all other replicas to ensure the correctness and accuracy of the database even if it’s accessed in any region of the world.
What is Database Consistency?
Database consistency governs the most crucial aspects of the database, availability of correct information at the right time by the validation rules specified in the beginning is what decides the data integrity, and accuracy of the data stored.
In this article, we’ll be exploring consistency in the context of a relational database, why it’s crucial to be maintained, its real-world examples, and what features of an RDBMS help maintain a consistent database.
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