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    • 2. 发明授权
    • System and method for automatic loading of an XML document defined by a document-type definition into a relational database including the generation of a relational schema therefor
    • 将由文档类型定义定义的XML文档自动加载到关系数据库中的系统和方法,包括生成关系模式
    • US07072896B2
    • 2006-07-04
    • US09783657
    • 2001-02-14
    • Wang-Chien LeeGail Anne MitchellXin Zhang
    • Wang-Chien LeeGail Anne MitchellXin Zhang
    • G06F7/00
    • G06F17/30595G06F17/30896Y10S707/99942Y10S707/99943Y10S707/99945
    • A system and a method are provided for generating (28) a schema (22) for a relational database corresponding to a document having a document-type definition (18) and data complying with the document-type definition (18). The document-type definition (19) has content particles representative of the structure of the document data including one or more of the following content particles: elements, attributes of elements, nesting relationships between elements, grouping relationships between elements, schema (22) ordering indicators, existence indicators, occurrence indicators and element ID referencing indicators. The system and method described herein also contemplates loading the data into the relational database in a manner consistent with the relational schema (22). Metadata is extracted from the document-type definition (18) representative of the document-type definition (18). The schema (22) for the relational database is generated from the metadata, wherein at least one table is thereby defined in the relational database corresponding to at least one content particle of the document-type definition (18) via the metadata (34). The data is then loaded into the at least one table of the relational dataset according to the relational schema (22) in a manner driven by the metadata (34).
    • 提供了一种用于生成(28)用于与具有文档类型定义(18)的文档和符合文档类型定义(18)的数据相对应的关系数据库(28)的模式(22)的方法。 文档类型定义(19)具有表示文档数据的结构的内容粒子,其包括以下内容粒子中的一个或多个:元素,元素的属性,元素之间的嵌套关系,分组元素之间的关系,模式(22)排序 指标,存在指标,发生指标和元素ID参考指标。 本文描述的系统和方法还考虑以与关系模式(22)一致的方式将数据加载到关系数据库中。 从代表文档类型定义(18)的文档类型定义(18)中提取元数据。 从元数据生成用于关系数据库的模式(22),其中至少一个表经由元数据(34)在对应于文档类型定义(18)的至少一个内容粒子的关系数据库中被定义。 然后,按照由元数据(34)驱动的方式,根据关系模式(22)将数据加载到关系数据集的至少一个表中。