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    • 7. 发明授权
    • Invocation of web services from a database
    • 从数据库调用Web服务
    • US08166006B2
    • 2012-04-24
    • US09968353
    • 2001-09-28
    • Larry BrownJames C. KleeweinBerthold ReinwaldPeter M. SchwarzCharles Daniel Wolfson
    • Larry BrownJames C. KleeweinBerthold ReinwaldPeter M. SchwarzCharles Daniel Wolfson
    • G06F17/30
    • G06F17/30483
    • The present invention provides a method, system and program product for integrating a service external to a database into a database such that the service may be easily invoked from the database. Preferably, the service is a web service available over the internet The service may be invoked from any of a number of invoking mechanisms of the database. In a first specific embodiment, the mechanism comprises a user-defined function within an SQL statement. In a second specific embodiment, the mechanism comprises a virtual table. In a third specific embodiment, the mechanism comprises a stored procedure. In a fourth specific embodiment, the mechanism comprises a trigger. In a fifth specific embodiment, the mechanism comprises a federated table accessed via a nickname and implemented using a wrapper.
    • 本发明提供了一种用于将数据库外部的服务集成到数据库中的方法,系统和程序产品,使得可以容易地从数据库调用该服务。 优选地,该服务是通过互联网可用的web服务。可以从数据库的多个调用机制中的任何一个调用该服务。 在第一具体实施例中,该机制包括SQL语句内的用户定义的函数。 在第二具体实施例中,机构包括虚拟表。 在第三具体实施例中,机构包括存储过程。 在第四具体实施例中,该机构包括触发器。 在第五具体实施例中,该机制包括通过昵称访问并且使用包装器实现的联合表。
    • 9. 发明授权
    • Dynamic and selective data source binding through a metawrapper
    • 动态和选择性的数据源绑定通过metawrapper
    • US07853576B2
    • 2010-12-14
    • US11848304
    • 2007-08-31
    • Inderpal S. NarangVijayshankar RamanPeter M. Schwarz
    • Inderpal S. NarangVijayshankar RamanPeter M. Schwarz
    • G06F7/00G06F17/30
    • G06F17/30575Y10S707/99933Y10S707/99955
    • A system, method, and program storage device implementing the method, for integrating data in a database management system, wherein the method comprises grouping data sources and replicas of the data sources that provide analogous data into a common logical domain; writing application queries against the common logical domain; selecting a correct set of replicas of the data sources and a query-execution strategy for combining a content of the correct set of replicas of the data sources in order to answer the application queries according to query-cost-based optimization; selecting a correct set of data sources according to run-time constraints; shielding the application queries from changes to the data sources by dynamically binding the application queries against the correct sets of data sources and replicas of the data sources; and processing the application queries by generating an optimum query result based on the steps of grouping and shielding.
    • 实现该方法的系统,方法和程序存储设备,用于将数据集成在数据库管理系统中,其中该方法包括将提供类似数据的数据源的数据源和副本分组到公共逻辑域中; 针对公共逻辑域编写应用程序查询; 选择正确的数据源副本和用于组合数据源的正确的副本集合的内容的查询执行策略,以便根据基于查询成本的优化来应答应用查询; 根据运行时限制选择正确的数据源集合; 通过将应用程序查询与数据源的正确数据源和副本集合动态绑定来屏蔽应用程序查询对数据源的更改; 并通过基于分组和屏蔽的步骤产生最佳查询结果来处理应用查询。