Technical Definitions: What is Multi-Version Concurrency Control? Multi-Version Concurrency Control Definition.

Free Definitions: Software: Databases

Multi-Version Concurrency Control Definition

(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}. (1999-06-18)

Definition Provided By Denis Howe