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- Optimistic_concurrency_control abstract "Optimistic concurrency control (OCC) is a concurrency control method applied to transactional systems such as relational database management systems and software transactional memory. OCC assumes that multiple transactions can frequently complete without interfering with each other. While running, transactions use data resources without acquiring locks on those resources. Before committing, each transaction verifies that no other transaction has modified the data it has read. If the check reveals conflicting modifications, the committing transaction rolls back and can be restarted. Optimistic concurrency control was first proposed by H.T. Kung.OCC is generally used in environments with low data contention. When conflicts are rare, transactions can complete without the expense of managing locks and without having transactions wait for other transactions' locks to clear, leading to higher throughput than other concurrency control methods. However, if contention for data resources is frequent, the cost of repeatedly restarting transactions hurts performance significantly; it is commonly thought that other concurrency control methods have better performance under these conditions. However, locking-based ("pessimistic") methods also can deliver poor performance because locking can drastically limit effective concurrency even when deadlocks are avoided.".
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- Optimistic_concurrency_control wikiPageWikiLink GT.M.
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- Optimistic_concurrency_control wikiPageWikiLink Grails_(framework).
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- Optimistic_concurrency_control wikiPageWikiLink Time_of_check_to_time_of_use.
- Optimistic_concurrency_control wikiPageWikiLinkText "Optimistic concurrency control".
- Optimistic_concurrency_control wikiPageWikiLinkText "Optimistic".
- Optimistic_concurrency_control wikiPageWikiLinkText "optimistic concurrency control".
- Optimistic_concurrency_control wikiPageWikiLinkText "optimistic concurrency mechanism".
- Optimistic_concurrency_control wikiPageWikiLinkText "optimistic concurrency".
- Optimistic_concurrency_control wikiPageWikiLinkText "optimistic protocol".
- Optimistic_concurrency_control wikiPageWikiLinkText "optimistic".
- Optimistic_concurrency_control wikiPageWikiLinkText "optimistically".
- Optimistic_concurrency_control hasPhotoCollection Optimistic_concurrency_control.
- Optimistic_concurrency_control wikiPageUsesTemplate Template:Cite_conference.
- Optimistic_concurrency_control wikiPageUsesTemplate Template:Cite_journal.
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- Optimistic_concurrency_control wikiPageUsesTemplate Template:Reflist.
- Optimistic_concurrency_control wikiPageUsesTemplate Template:Unreferenced_section.
- Optimistic_concurrency_control subject Category:Concurrency_control.
- Optimistic_concurrency_control hypernym Method.
- Optimistic_concurrency_control type Article.
- Optimistic_concurrency_control type Software.
- Optimistic_concurrency_control type Article.
- Optimistic_concurrency_control comment "Optimistic concurrency control (OCC) is a concurrency control method applied to transactional systems such as relational database management systems and software transactional memory. OCC assumes that multiple transactions can frequently complete without interfering with each other. While running, transactions use data resources without acquiring locks on those resources. Before committing, each transaction verifies that no other transaction has modified the data it has read.".
- Optimistic_concurrency_control label "Optimistic concurrency control".
- Optimistic_concurrency_control sameAs Optimistic_Concurrency.
- Optimistic_concurrency_control sameAs Control_de_concurrencia_optimista.
- Optimistic_concurrency_control sameAs کنترل_همروندی_خوشبینانه.
- Optimistic_concurrency_control sameAs בקרת_מקביליות_אופטימית.
- Optimistic_concurrency_control sameAs 楽観的並行性制御.
- Optimistic_concurrency_control sameAs m.01hwbw.
- Optimistic_concurrency_control sameAs Q1779327.
- Optimistic_concurrency_control sameAs Q1779327.
- Optimistic_concurrency_control sameAs 乐观并发控制.
- Optimistic_concurrency_control wasDerivedFrom Optimistic_concurrency_control?oldid=655011024.
- Optimistic_concurrency_control isPrimaryTopicOf Optimistic_concurrency_control.