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1. 发明授权

US07257605B2 System for heterogeneous distributed transaction management in database systems 有权
标题翻译：数据库系统中异构分布式事务管理系统
公开(公告)号：US07257605B2
公开(公告)日：2007-08-14
申请号：US10775739
申请日：2004-02-09
申请人： Raghupathi Keshava Murthy
发明人： Raghupathi Keshava Murthy
IPC分类号： G06F17/30
CPC分类号： G06F17/30575
摘要： Disclosed is a mechanism that can be implemented in database systems to support distributed transactions in heterogeneous systems. Once the transaction manager of a database system implements this mechanism, application developers and vendors can integrate new datasources into the transaction manager of the database system. This would simplify the application design and ensure the integrity of data and interactions. The interface and interactions between the transaction manager and external datasources (both structured and non-structured) conform to X/Open XA standards. Also disclosed is a technique to design the system catalogs for organizing the datasources and instances of the new datasources.
摘要翻译：公开了可以在数据库系统中实现以支持异构系统中的分布式事务的机制。一旦数据库系统的事务管理器实现此机制，应用程序开发人员和供应商就可以将新的数据源集成到数据库系统的事务管理器中。这将简化应用程序设计并确保数据和交互的完整性。事务管理器和外部数据源（结构化和非结构化）之间的接口和交互符合X / Open XA标准。还公开了一种设计用于组织新数据源的数据源和实例的系统目录的技术。

2. 发明授权

US07685103B2 Method, system, and program for predicate processing by iterator functions 失效
标题翻译：迭代器函数进行谓词处理的方法，系统和程序
公开(公告)号：US07685103B2
公开(公告)日：2010-03-23
申请号：US10675265
申请日：2003-09-29
申请人： Kevin Brown , Raghupathi Keshava Murthy
发明人： Kevin Brown , Raghupathi Keshava Murthy
IPC分类号： G06F17/30
CPC分类号： G06F17/30705 , G06F17/30707 , G06F17/30896 , Y10S707/99933
摘要： Disclosed is a technique for processing predicates in an iterator function. When an iterator function included in a statement is invoked, one or more predicates included in the statement are obtained. The one or more predicates are applied to a row of data. If applying the one or more predicates results in a match, the row of data is returned. If applying the one or more predicates does not result in a match, a search is performed for another row of data for which application of the one or more predicates results in a match. Also disclosed is a technique for processing predicates in which a statement including an iterator function and one or more predicates is received. A qualification descriptor that describes the one or more predicates and one or more functions that are to be used to evaluate the one or more predicates is created. Then, the iterator function is invoked one or more times, until receiving a done indicator from the iterator function.
摘要翻译：公开了一种在迭代器函数中处理谓词的技术。当一个语句中包含的迭代器函数被调用时，会获得语句中包含的一个或多个谓词。一个或多个谓词被应用于一行数据。如果应用一个或多个谓词导致匹配，则返回数据行。如果应用一个或多个谓词不会导致匹配，则对另一行数据执行搜索，为一个或多个谓词的应用导致匹配。还公开了一种用于处理谓词的技术，其中包括迭代器函数和一个或多个谓词的语句被接收。创建描述一个或多个谓词和用于评估一个或多个谓词的一个或多个函数的限定描述符。然后，迭代器函数被调用一次或多次，直到从迭代器函数接收完成的指示符。

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