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    • 9. 发明授权
    • Filtering query results using model entity limitations
    • 使用模型实体限制过滤查询结果
    • US07949652B2
    • 2011-05-24
    • US12195159
    • 2008-08-20
    • Richard D. DettingerDaniel P. KolzShannon E. Wenzel
    • Richard D. DettingerDaniel P. KolzShannon E. Wenzel
    • G06F7/00
    • G06F17/30392Y10S707/962Y10S707/99933Y10S707/99937
    • A method, system, and article of manufacture to process database queries are disclosed. One embodiment comprises receiving an abstract query against a database having a multiplicity of data records. The abstract query identifies a model entity that defines a focus of the abstract query. The method further comprises receiving a limitation request configured to restrict a result set for the abstract query. The limitation request specifies a limitation on data records that are returned for one or more instances of the underlying model entity. From the abstract query, an executable query capable of being executed by a query engine is generated. The executable query is modified on the basis of the limitation request. The modified executable query is executed against the database to obtain the result set, whereby the result set is restricted as requested by the limitation request.
    • 公开了一种处理数据库查询的方法,系统和制品。 一个实施例包括针对具有多个数据记录的数据库接收抽象查询。 抽象查询标识定义抽象查询焦点的模型实体。 该方法还包括接收被配置为限制抽象查询的结果集的限制请求。 限制请求指定对基础模型实体的一个或多个实例返回的数据记录的限制。 从抽象查询,生成能够被查询引擎执行的可执行查询。 可执行查询根据限制请求进行修改。 针对数据库执行修改的可执行查询以获得结果集,由此限制请求的请求限制结果集。