Web Reference: Dec 6, 2025 · Multi-Version Concurrency Control (MVCC) is a technique used in databases to allow many users to read and update data at the same time without blocking each other. Feb 26, 2026 · Internally, data consistency is maintained by using a multiversion model (Multiversion Concurrency Control, MVCC). This means that each SQL statement sees a snapshot of data (a database version) as it was some time ago, regardless of the current state of the underlying data. Multiversion concurrency control (MCC or MVCC), is a non-locking concurrency control method commonly used by database management systems to provide concurrent access to the database and in programming languages to implement transactional memory.
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