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    • 1. 发明授权
    • Database system and method employing data cube operator for group-by
operations
    • 数据库系统和采用数据多维数据集算子进行分组操作的方法
    • US5832475A
    • 1998-11-03
    • US624283
    • 1996-03-29
    • Rakesh AgrawalAshish GuptaSunita Sarawagi
    • Rakesh AgrawalAshish GuptaSunita Sarawagi
    • G06F17/30
    • G06F17/30489Y10S707/99931Y10S707/99932Y10S707/99933Y10S707/99934Y10S707/99937
    • Disclosed is a system and method for performing database queries including GROUP-BY operations, in which aggregate values for attributes are desired for distinct, partitioned subsets of tuples satisfying a query. A special case of the aggregation problem is addressed, employing a structure, called the data cube operator, which provides information useful for expediting execution of GROUP-BY operations in queries. Algorithms are provided for constructing the data cube by efficiently computing a collection of GROUP-BYs on the attributes of the relation. Decision support systems often require computation of multiple GROUP-BY operations on a given set of attributes, the GROUP-BYs being related in the sense that their attributes are subsets or supersets of each other. The invention extends hash-based and sort-based grouping methods with optimizations, including combining common operations across multiple GROUP-BYs and using pre-computed GROUP-BYs for computing other GROUP-BYs. An extension of the cube algorithms handles any given collection of aggregates.
    • 公开了一种用于执行包括GROUP-BY操作的数据库查询的系统和方法,其中期望满足查询的元组的不同分配子集的属性的聚合值。 解决聚合问题的一个特殊情况,采用称为数据多维数据集运算符的结构,该结构提供了有助于在查询中加速执行GROUP-BY操作的信息。 提供了通过有效地计算关系的属性的GROUP-BY集合来构造数据立方体的算法。 决策支持系统通常需要对给定的一组属性计算多个GROUP-BY操作,GROUP-BY在其属性是彼此的子集或超集的意义上相关。 本发明通过优化来扩展基于散列和分类的分组方法,包括组合跨多个GROUP-BY的常规操作,并使用预先计算的GROUP-BY来计算其他GROUP-BY。 多维数据集算法的扩展可处理任何给定的聚合集合。
    • 8. 发明申请
    • SYSTEMS, METHODS, AND DEVICES FOR COMBINED CREDIT CARD AND STORED VALUE TRANSACTION ACCOUNTS
    • 组合信用卡和存储价值交易账户的系统,方法和设备
    • US20110078082A1
    • 2011-03-31
    • US12961909
    • 2010-12-07
    • Ashish Gupta
    • Ashish Gupta
    • G06Q40/00
    • G06Q20/227G06Q20/10G06Q20/102G06Q20/14G06Q20/34G06Q20/385G06Q20/40G06Q20/405G06Q40/00
    • The present invention generally relates to a single transaction account identifier that can be used for in transactions with one of multiple transaction accounts. The method includes one or more of the following steps: establishing at least two transaction accounts, wherein the transaction accounts are respectively associated with transaction account identifiers; receiving, at a transaction processing system, a common account identifier; recognizing the common account identifier as being associated with more than one account; and determining, which of the at least two transaction accounts to access for processing the transaction. The determining step may be based on selection criteria and the selection criteria may be modified by a user. One of the first and second transaction account identifiers may be forwarded to the respective first and second transaction accounts based on the determining step; and the transaction may be processed via the selected transaction account.
    • 本发明一般涉及可以用于与多个交易账户之一交易的单个交易账户标识符。 该方法包括以下步骤中的一个或多个:建立至少两个交易账户,其中交易账户分别与交易账户标识符相关联; 在交易处理系统处接收公共账户标识符; 识别公共帐户标识符与多个帐户相关联; 以及确定要访问的至少两个交易账户中的哪一个用于处理该交易。 确定步骤可以基于选择标准,并且可以由用户修改选择标准。 可以基于确定步骤将第一和第二交易账户标识符之一转发到相应的第一和第二交易账户; 并且可以通过所选择的交易账户来处理交易。