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    • 5. 发明授权
    • Referentially-complete data subsetting using relational databases
    • 使用关系数据库进行完整的数据子集
    • US08935234B2
    • 2015-01-13
    • US13603126
    • 2012-09-04
    • Ravi PattabhiBalasubrahmanyam Kuchibhotla
    • Ravi PattabhiBalasubrahmanyam Kuchibhotla
    • G06F17/30
    • G06F17/30463
    • A method, system, and computer program product for relational database management. The method constructs a referentially-complete target subset database from a source database by first estimating the expected size of the target subset database based on application of one or more subsetting rules. If the estimated size needs reduction, the user can modify the subsetting rules, and then modules are invoked to receive the modified subset rules. The method continues by generating a subsetting execution plan by applying the user-modified subset rules to the source database, and then modules process the generated execution plan, which processing results in storage of a referentially-complete target subset database. The user can influence the construction of the execution plan by suggesting an execution model to use during processing of the subsetting execution plan. Techniques estimate the expected size by constructing a directed graph wherein edges in the directed graph represent relationships between database tables.
    • 用于关系数据库管理的方法,系统和计算机程序产品。 该方法通过首先基于一个或多个子集规则的应用来估计目标子集数据库的预期大小,从源数据库构建完全完整的目标子集数据库。 如果估计的大小需要减少,用户可以修改子集规则,然后调用模块来接收修改的子集规则。 该方法通过将用户修改的子集规则应用于源数据库来生成子集执行计划,然后模块处理所生成的执行计划,该处理导​​致存储完全目标子集数据库。 用户可以通过建议在子集执行计划的处理期间使用的执行模型来影响执行计划的构建。 技术通过构建有向图来估计预期大小,其中有向图中的边表示数据库表之间的关系。
    • 6. 发明申请
    • REFERENTIALLY-COMPLETE DATA SUBSETTING USING RELATIONAL DATABASES
    • 使用关系数据库参考完整的数据访问
    • US20140067867A1
    • 2014-03-06
    • US13603126
    • 2012-09-04
    • Ravi PattabhiBalasubrahmanyam Kuchibhotla
    • Ravi PattabhiBalasubrahmanyam Kuchibhotla
    • G06F17/30
    • G06F17/30463
    • A method, system, and computer program product for relational database management. The method constructs a referentially-complete target subset database from a source database by first estimating the expected size of the target subset database based on application of one or more subsetting rules. If the estimated size needs reduction, the user can modify the subsetting rules, and then modules are invoked to receive the modified subset rules. The method continues by generating a subsetting execution plan by applying the user-modified subset rules to the source database, and then modules process the generated execution plan, which processing results in storage of a referentially-complete target subset database. The user can influence the construction of the execution plan by suggesting an execution model to use during processing of the subsetting execution plan. Techniques estimate the expected size by constructing a directed graph wherein edges in the directed graph represent relationships between database tables.
    • 用于关系数据库管理的方法,系统和计算机程序产品。 该方法通过首先基于一个或多个子集规则的应用来估计目标子集数据库的预期大小,从源数据库构建完全完整的目标子集数据库。 如果估计的大小需要减少,用户可以修改子集规则,然后调用模块来接收修改的子集规则。 该方法通过将用户修改的子集规则应用于源数据库来生成子集执行计划,然后模块处理所生成的执行计划,该处理导​​致存储完全目标子集数据库。 用户可以通过建议在子集执行计划的处理期间使用的执行模型来影响执行计划的构建。 技术通过构建有向图来估计预期大小,其中有向图中的边表示数据库表之间的关系。