Multiversion Concurrency Control (MVCC)

Multiversion Concurrency Control (MVCC) is a database management technique that allows multiple users to access and modify data simultaneously without conflicts. It works by keeping different "versions" of data entries: when a user reads data, they see a consistent snapshot, and when writing, changes are made to a new version. This method prevents users from interfering with each other’s work, ensuring smooth, efficient transactions while maintaining data integrity and consistency. MVCC is widely used in modern databases to optimize performance and concurrency, enabling many users to work with the database at the same time seamlessly.