precedence graph

  • 1Precedence graph — A precedence graph, also named conflict graph and serializability graph, is used in the context of concurrency control in databases.The precedence graph for a schedule S contains: * A node for each committed transaction in S * An arc from Ti to… …

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  • 2Operator-precedence grammar — An operator precedence grammar is a kind of grammar for formal languages. Technically, an operator precedence grammar is a context free grammar that has the property (among others[1]) that no production has either an empty right hand side or two… …

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  • 3Serializability — In concurrency control of databases,[1][2] transaction processing (transaction management), and various transactional applications (e.g., transactional memory[3] and software transactional memory), both centralized and distributed, a transaction… …

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  • 4Commitment ordering — In concurrency control of databases, transaction processing (transaction management), and related applications, Commitment ordering (or Commit ordering; CO; (Raz 1990, 1992, 1994, 2009)) is a class of interoperable Serializability techniques …

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  • 5Schedule (computer science) — In the fields of databases and transaction processing (transaction management), a schedule (also called history) of a system is an abstract model to describe execution of transactions running in the system. Often it is a list of operations… …

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  • 6Global serializability — In concurrency control of databases, transaction processing (transaction management), and other transactional distributed applications, Global serializability (or Modular serializability) is a property of a global schedule of transactions. A… …

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  • 7Concurrency control — In information technology and computer science, especially in the fields of computer programming (see also concurrent programming, parallel programming), operating systems (see also parallel computing), multiprocessors, and databases, concurrency …

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  • 8Two-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… …

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  • 9C3 linearization — The C3 superclass linearization is an algorithm used primarily to obtain a consistent linearization of a multiple inheritance hierarchy in object oriented programming. This linearization is used to resolve the order in which methods should be… …

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  • 10Граф предшествования — Связать? Граф предшествования (граф cериализации), понятие теории графов. Граф предшествования для последовательности событий S состоит из узла для каждой подтвержденной транзакции в S стрелки из Ti в Tj если …

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