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    • 7. 发明申请
    • Dynamic statement processing in database systems
    • 数据库系统中的动态语句处理
    • US20070219973A1
    • 2007-09-20
    • US11377328
    • 2006-03-15
    • Baoqiu CuiYou-Chin FuhJeff SullivanYoichi TsujiLi Xia
    • Baoqiu CuiYou-Chin FuhJeff SullivanYoichi TsujiLi Xia
    • G06F17/30
    • G06F16/2435
    • A method, computer program product, and system for processing dynamic statements in a database system are provided. The method, computer program product, and system provide for calculating a first set of characteristics associated with a dynamic statement when the dynamic statement matches one of a plurality of dynamic statements previously processed by the system, comparing the first set of characteristics associated with the dynamic statement to a second set of characteristics associated with one of one or more access paths generated for the one previously processed dynamic statement, and utilizing the one access path to execute the dynamic statement when the comparison of the first set of characteristics to the second set of characteristics satisfies one or more predetermined criteria.
    • 提供了一种用于处理数据库系统中的动态语句的方法,计算机程序产品和系统。 所述方法,计算机程序产品和系统提供用于当动态语句与先前由系统处理的多个动态语句中的一个动态语句匹配时计算与动态语句相关联的第一组特征,比较与动态语句相关联的第一组特征 语句到与针对一个先前处理的动态语句生成的一个或多个访问路径之一相关联的第二组特征,以及当第一组特征与第二组的特征比较时,利用一个访问路径来执行动态语句 特性满足一个或多个预定标准。