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Multi-Version Concurrency Control

   Also found in: Wikipedia 0.01 sec.
(database)Multi-Version Concurrency Control - (MVCC) An advanced technique for improving multi-user database performance.

The main difference between multiversion and lock models is that in MVCC locks acquired for querying (reading) data don't conflict with locks acquired for writing data and so reading never blocks writing and writing never blocks reading.

This technique is used in the free software database PostgreSQL.


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solidDB for MySQL is designed for transactional applications and supports full ACID compliance with configurable transaction isolation levels, both optimistic and pessimistic concurrency control, Multi-Version Concurrency Control (MVCC) with non-blocking reads and writes, row-level locking, and support for foreign keys and referential integrity.
Key features of the solidDB Storage Engine include multi-version concurrency control, full transactional integrity with robust ACID support, online backup capabilities, fast performance for mixed workloads and robust security with database roles.
Multi-Version Concurrency Control (MVCC) -- ObjectStore 4.
 
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