Multi-Version Concurrency Control

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(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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No references found			Multi-Version Concurrency Control -- improves performance of highly concurrent, mixed read/write systems by giving each user their own "snapshot" of the database and managing concurrent changes by many users. ORACLE BERKELEY DB RELEASE 4.5 LAUNCHED by Worldwide Databases Some of the topics covered are: Cache Friendly Web, The Apache Toolbox, MySQL Best Practices, Internationalization and Localization with PHP, Choosing a Templating System, PostgreSQL's Multi-Version Concurrency Control, Embedded and Linux. "The Linux Web server CD bookshelf, version 2.0" by Software World 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. solidDB for MySQL Sets Performance Record in Public Benchmark by Business Wire			Multanovskii, Boris Pompeevich Multatuli multi- Multi-BinProlog multi-blade damper Multi-channel Memorandum Distribution Facility multi-config multi-drop multi-element prestressing Multi-Garnet multi-GPU multi-mirror telescope multi-monitor multi-outlet assembly multi-part key Multi-Pascal multi-ply construction multi-tapping Multi-tasking Program for Microcomputers multi-timbral multi-unit wall multi-user Multi-User Dimension Multi-User Dungeon Multi-User Shared Hallucination Multi-Version Concurrency Control multi-way branch multiaccess computer multiaccess network multiaddress Multiaddress Communications Service Multiaddress Telegraph Transmission multianode tube multiaperture reluctance switch multiaspect Multiaxle Motor Vehicle Multiaxle Trailer multibag packer Multiband Aerial Photography Multiband Photography multiboot Multibucket Excavator MULTIBUS multiC MultiCal System multicast multicast addressing multicast backbone multicast routing protocol multicavity klystron multicavity magnetron			Multi-Vantage Point Tree Multi-Variable Control Unit Multi-Variable Decision-Feedback Equalizer Multi-Variable Instrument Cost Model Multi-Variable Optimal Interpolation Multi-Variable Testing Multi-Variage Strictly Polar Quantization Multi-Variant Execution Environment Multi-Variate Analysis Multi-Variate Block Polar Quantization Multi-Variate Data Analysis Multi-Variate Rank Sum Statistical Test Multi-Variate Rectangular Quantization Multi-Variate Unrestricted Polar Quantization Multi-Variate Weibull Multi-Variate Weight Enumeration Function Multi-Vector Advanced Escort Multi-Vector Vision Multi-Vehicle Communication System Multi-Vendor Diagnostic Imaging Multi-Vendor Import Multi-Vendor Integration Protocol Multi-Vendor Interacting Forum Multi-Vendor Manager Multi-Version Concurrency Control Multi-Vessel Small Thoracotomy Multi-View Design Environments Multi-View Soft Shadows Multi-View Video Multi-Virulence-Locus Sequence Typing Multi-Virus Cleaner Multi-Visit Multi-Visit Pass Multi-Vitamin Injection multi-voxel pattern analysis Multi-WAIS Engine for Searching Commercial Hosts Multi-Walled Carbon Nanotube Multi-Walled Nanotube Multi-warfare Analysis and Research System Multi-warfare Assessment and Research Simulation Multi-warfare Assessment and Research System Multi-Wavelength Detection Multi-Wavelength Laser Source Multi-Wavelength Optical Code Division Multiple Access Multi-Wavelength Optical Network Multi-wavelength Optical Repeater Multi-Wavelength Spectral Reflectance Multi-Wavelength System Multi-Wavelength Transport Network

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