Multi-Version Concurrency Control - definizione. Che cos'è Multi-Version Concurrency Control
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Cosa (chi) è Multi-Version Concurrency Control - definizione

CONCURRENCY CONTROL METHOD COMMONLY USED BY DATABASE MANAGEMENT SYSTEMS
Multi-Version Concurrency Control

Multi-Version Concurrency Control         
<database> (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)
Multiversion concurrency control         
Multiversion concurrency control (MCC or MVCC), is a concurrency control method commonly used by database management systems to provide concurrent access to the database and in programming languages to implement transactional memory.
Version control         
  • Example history graph of a revision-controlled project; trunk is in green, branches in yellow, and graph is not a tree due to presence of merges (the red arrows).
ACTIVITY OF MANAGING THE VERSIONS OF ONE OR MORE FILES
Version control system; Source Code Management; Revision control system; Versioncontrol; Revision control software; Versioning system; Version Control; Revision Control; Version control systems; Code management system; Revision level; Version management; Revision management; Source code management; Versioning systems; Source+Control+Management; Source Control Management; Reverse Integration; Version Control System; Revision number; Collaborative versioning system; Tree Conflict; Version control software; Discontinued development branch; Revision tracking; Source configuration management; Source-control management; Change List (Revision Control); Revision control; Source control management; Version-control; Source control; Version Control Systems; Blame (version control); Blame (source control); Blame (git)
In software engineering, version control (also known as revision control, source control, or source code management) is a class of systems responsible for managing changes to computer programs, documents, large web sites, or other collections of information. Version control is a component of software configuration management.

Wikipedia

Multiversion concurrency control

Multiversion concurrency control (MCC or MVCC), is a concurrency control method commonly used by database management systems to provide concurrent access to the database and in programming languages to implement transactional memory.