optimistic locking

optimistic locking
"оптимистическое блокирование" (стратегия блокирования набора данных, при которой страница, содержащая изменяемую запись, блокируется только на время внесения изменений в запись программой, но не пользователем, см. pessimistic locking)

English-Russian dictionary of computer science and programming. 2013.

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  • Optimistic concurrency control — In the field of relational database management systems, optimistic concurrency control (OCC) is a concurrency control method that assumes that multiple transactions can complete without affecting each other, and that therefore transactions can… …   Wikipedia

  • Optimistic Concurrency — (auch: Optimistisches Locking genannt) ist ein Verfahren, um beispielsweise in Warenwirtschaftssystemen den parallelen Zugriff von mehreren Benutzern auf denselben Datensatz konfliktarm und ohne Inkonsistenzen zu regeln. Bei der Optimistic… …   Deutsch Wikipedia

  • Two-phase locking — This article is about concurrency control. For commit consensus within a distributed transaction, see Two phase commit protocol. In databases and transaction processing two phase locking, (2PL) is a concurrency control method that guarantees… …   Wikipedia

  • Opportunistic Locking — In the SMB protocol, Opportunistic Locking (also referred to as OpLocks) is a file locking mechanism designed to improve performance by controlling caching of files on the client. Contrary to traditional locking, OpLocks are not used in order to… …   Wikipedia

  • Lock (computer science) — In computer science, a lock is a synchronization mechanism for enforcing limits on access to a resource in an environment where there are many threads of execution. Locks are one way of enforcing concurrency control policies. Contents 1 Types 2… …   Wikipedia

  • Microsoft Jet Database Engine — This article is about JET Red used in Microsoft Access. For the JET Blue ISAM implementation, see Extensible Storage Engine. The Microsoft Jet Database Engine is a database engine on which several Microsoft products have been built. A database… …   Wikipedia

  • Lock (database) — A lock is used when multiple users need to access a database concurrently. This prevents data from being corrupted or invalidated when multiple users try to write to the database. Any single user can only modify those database records (that is,… …   Wikipedia

  • NConstruct — is a rapid software development environment for the .NET framework, featuring automatic code generation.Starting point for developing applications with NConstruct is database model. Users run NConstruct Builder wizard on your database which… …   Wikipedia

  • Versant — es un Sistema Gestor de Base de Datos Orientada a Objetos (SGBDOO) desarrollado por Versant Corporation. Contenido 1 Requerimientos del Sistema 2 Objetos 2.1 Tipos de Objetos 2.2 Tipos Predefinidos …   Wikipedia Español

  • Buffer Manager — DB2 ist ein kommerzielles relationales Datenbank Management System (RDBMS) der Firma IBM, dessen Ursprünge auf das System R und die Grundlagen von E. F. Codd vom IBM Research aus dem Jahr 1970 zurückgeht. Inhaltsverzeichnis 1 Eigenschaften 1.1… …   Deutsch Wikipedia

  • Buffer Pool — DB2 ist ein kommerzielles relationales Datenbank Management System (RDBMS) der Firma IBM, dessen Ursprünge auf das System R und die Grundlagen von E. F. Codd vom IBM Research aus dem Jahr 1970 zurückgeht. Inhaltsverzeichnis 1 Eigenschaften 1.1… …   Deutsch Wikipedia


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