System and method for providing user defined aggregates in a database system
    4.
    发明授权
    System and method for providing user defined aggregates in a database system 有权
    在数据库系统中提供用户定义的聚合的系统和方法

    公开(公告)号:US07376656B2

    公开(公告)日:2008-05-20

    申请号:US10775982

    申请日:2004-02-10

    IPC分类号: G06F7/00 G07F17/00

    摘要: A database system and method allows a user to write program code in a high-level programming language that implements a class that defines the structure of a user-defined aggregate and methods that can be invoked on instances of the user-defined aggregate. The class is then registered with the database system, which enforces a specific contract for user-defined aggregates against the class. The contract comprises the following requirements. First, the class must specify one of a plurality of different formats for persisting instances of the user-defined aggregate in a database store. Second, the class must comprise certain specified methods that can be invoked on an instance of the class. Once these requirements are satisfied, the database system enables instances of the user-defined aggregate to be created. Preferably, the database system stores metadata about the user-defined aggregate for subsequent use in creating instances of the aggregate.

    摘要翻译: 数据库系统和方法允许用户以高级编程语言编写程序代码,该语言实现定义用户定义聚合的结构的类,以及可以在用户定义聚合的实例上调用的方法。 该类然后向数据库系统注册,该数据库系统针对类强制执行用户定义的聚合的特定合同。 合同包括以下要求。 首先,类必须为数据库存储中用户定义聚合的持久化实例指定多种不同格式之一。 第二,类必须包含可以在类的实例上调用的某些指定方法。 一旦满足这些要求,数据库系统就可以创建用户定义聚合的实例。 优选地,数据库系统存储关于用户定义聚合的元数据,用于随后用于创建聚合的实例。

    System and method for providing user defined types in a database system
    7.
    发明授权
    System and method for providing user defined types in a database system 有权
    在数据库系统中提供用户定义类型的系统和方法

    公开(公告)号:US07308460B2

    公开(公告)日:2007-12-11

    申请号:US11016240

    申请日:2004-12-17

    IPC分类号: G06F17/30

    摘要: A database system and method allows a user to write program code in a high-level programming language that implements a class that defines the structure of a user-defined type and methods that can be invoked on instances of the type. The class is then registered with the database system, which enforces a specific contract for user-defined types against the class. The contract comprises the following requirements. First, the class must specify one of a plurality of different formats for persisting instances of the user-defined type in a database store. Second, the class must be capable of returning a null value for the user-defined type. Third, the class must provide a method for converting the user-defined type to another type. Once these requirements are satisfied, the database system enables instances of the user-defined type to be created. A user-defined type can be used in all contexts where any other built-in type can be used. This includes defining columns of tables, declaring variables and parameters to functions and stored procedures, and evaluating expressions of the user-defined type in SQL queries and updates. Preferably, the database system stores metadata about the user-defined type for subsequent use in creating instances of the type.

    摘要翻译: 数据库系统和方法允许用户以实现定义用户定义类型的结构的类的高级编程语言编写程序代码,并且可以在该类型的实例上调用方法。 该类然后向数据库系统注册,该系统针对类强制执行用户定义类型的特定合同。 合同包括以下要求。 首先,类必须为数据库存储中的用户定义类型的持久化实例指定多种不同格式之一。 第二,类必须能够返回用户定义类型的空值。 第三,类必须提供一种将用户定义类型转换为另一种类型的方法。 一旦满足这些要求,数据库系统就可以创建用户定义类型的实例。 可以在可以使用任何其他内置类型的所有上下文中使用用户定义的类型。 这包括定义表的列,将变量和参数声明为函数和存储过程,以及评估SQL查询和更新中用户定义类型的表达式。 优选地,数据库系统存储关于用户定义类型的元数据,以便随后用于创建该类型的实例。

    CONCEPT OF RELATIONSHIPSETS IN ENTITY DATA MODEL (EDM)
    8.
    发明申请
    CONCEPT OF RELATIONSHIPSETS IN ENTITY DATA MODEL (EDM) 审中-公开
    实体数据模型(EDM)中的关系概念

    公开(公告)号:US20070266041A1

    公开(公告)日:2007-11-15

    申请号:US11468008

    申请日:2006-08-29

    IPC分类号: G06F17/30 G06F7/00

    CPC分类号: G06F16/288

    摘要: The claimed subject matter provides a system and/or a method that facilitates addressing complex modeling. An entity data model that can receive data via an interface and that formalizes a notion of at least one of a Relationship, a Relationship instance, and a Relationship Set in a manner substantially similar to at least one of an Entity type, an Entity instance, and an entity-set respectively, wherein a semantic related to the at least one of the Relationship, the Relationship instance, and the Relationship Set are captured as metadata in the same manner as metadata is captured for at least one of the Entity type, the Entity instance, and the Entity-set, respectively.

    摘要翻译: 所要求保护的主题提供了有助于寻址复杂建模的系统和/或方法。 实体数据模型,其可以经由接口接收数据并以与实体类型,实体实例中的至少一个实质上相似的方式形式化关系,关系实例和关系集中的至少一个的概念, 以及实体集合,其中与所述关系,所述关系实例和所述关系集合中的至少一个相关的语义以与为所述实体类型,所述实体集合中的至少一个被捕获的元数据相同的方式被捕获为元数据 实体实例和实体集。

    Mapping architecture with incremental view maintenance
    9.
    发明申请
    Mapping architecture with incremental view maintenance 有权
    映射架构与增量视图维护

    公开(公告)号:US20070226196A1

    公开(公告)日:2007-09-27

    申请号:US11725206

    申请日:2007-03-16

    IPC分类号: G06F17/30

    摘要: A data access architecture is provided that includes a mapping architecture for mapping data as may be used by an application to data as persisted in a database. The mapping architecture makes use of two types of mapping views—a query view that helps in translating queries and an update view that helps in translating updates. Incremental view maintenance can be used to translate data between the application and database.

    摘要翻译: 提供了一种数据访问架构,其包括映射体系结构,用于将应用程序可能使用的数据映射为持久存储在数据库中的数据。 映射架构使用两种类型的映射视图 - 一种查询视图,可帮助翻译查询和更新视图,有助于翻译更新。 增量视图维护可用于在应用程序和数据库之间转换数据。