concurrency control


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concurrency control

In a database management system (DBMS), concurrency control manages simultaneous access to a database. It prevents two users from editing the same record at the same time and also serializes transactions for backup and recovery.
References in periodicals archive ?
Adopting technologies such as multi-process, multi-thread, multi-version data concurrency control and storage virtualization, K-DB ensures strong product performance and stability.
While managing large increments and simultaneously running analyses can result in long wait times, Fujitsu has adopted a solution in the form of MultiVersion Concurrency Control (MVCC (3)), which allows analyses to run at the same time that data domains are managed.
As part of its plan strategisme heritage society Auvergne considering habitat treated by negotiated procedure with publication and implementation of concurrency control of the market work for rehabilitation operation 60 pre housing judge in Clermont-Ferrand 63100.
Using SAND's massively parallel processing (MPP), generation based concurrency control (GBCC) and workload manager, dozens of individual SAND databases with multiple terabytes of data, spread across hundreds of processing cores, allow for truly elastic, scalable, and private cloud environments.
amp;bull; The Google Wave protocol is the underlying format for storing and the means of sharing waves, and includes the "live" concurrency control, which allows edits to be reflected instantly across users and services.
Other topics include concurrency control mechanisms in data service layers, compositional verification of UML dynamic models, checking distributed programs with partially ordered atoms, and aspect mining for Linux.
5 now supports multi-version concurrency control, non-stop upgrades for replicated environments and a pre-built replication framework to simplify development of highly available applications.
Examples of concerns range from non-functional notions such as security, reliability, and manageability to precise implementation techniques such as concurrency control, caching, and error recovery.
Then key technologies, such as concurrency control mechanism, shared whiteboard collaborative control strategy, are analyzed in detail.
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.
While the SPUs in the second tier respond to requests from the hosts in the first tier, they are highly autonomous, performing their own scheduling, storage management, transaction management, concurrency control and replication.
It is advanced capabilities, such as distributed data management and multiwriter concurrency control, only achievable through a solid technology foundation that deliver the greatest opportunities for sustainable improvements in quality of care and customer service.