Isolation for applications working on shared XML data
    1.
    发明授权
    Isolation for applications working on shared XML data 有权
    用于共享XML数据的应用程序的隔离

    公开(公告)号:US08510292B2

    公开(公告)日:2013-08-13

    申请号:US11442106

    申请日:2006-05-25

    IPC分类号: G06F7/00 G06F17/30

    摘要: A mechanism is provided for detecting and disregarding application specific nodes contained in shared XML documents. The techniques described involve determining one or more application specific nodes within XML documents and performing path expression evaluations of the XML documents as if the nodes are not present. In one embodiment, a mechanism is provided by which a user may specify the criterion that determines which subset of nodes in XML documents are to be ignored from path expression evaluations. A query that specifies a path operation based on a path is evaluated ignoring said identified nodes when evaluating said path operation.

    摘要翻译: 提供了一种用于检测和忽略包含在共享XML文档中的应用程序特定节点的机制。 所描述的技术涉及确定XML文档内的一个或多个应用特定节点,并且如同节点不存在一样执行XML文档的路径表达式评估。 在一个实施例中,提供了一种机制,用户可以通过该机制指定确定XML文档中的节点的哪个子集将被从路径表达式评估中被忽略的标准。 在评估所述路径操作时,忽略指定基于路径的路径操作的查询,忽略所述标识的节点。

    Isolation for applications working on shared XML data
    2.
    发明申请
    Isolation for applications working on shared XML data 有权
    用于共享XML数据的应用程序的隔离

    公开(公告)号:US20070276792A1

    公开(公告)日:2007-11-29

    申请号:US11442106

    申请日:2006-05-25

    IPC分类号: G06F17/30 G06F7/00 G06F17/00

    摘要: A mechanism is provided for detecting and disregarding application specific nodes contained in shared XML documents. The techniques described involve determining one or more application specific nodes within XML documents and performing path expression evaluations of the XML documents as if the nodes are not present. In one embodiment, a mechanism is provided by which a user may specify the criterion that determine which subset of node in XML documents are to be ignored from path expression evaluations and evaluating a query that specifies a path operation based on a path and ignoring said identified nodes when evaluating said path operation.

    摘要翻译: 提供了一种用于检测和忽略包含在共享XML文档中的应用程序特定节点的机制。 所描述的技术涉及确定XML文档内的一个或多个应用特定节点,并且如同节点不存在一样执行XML文档的路径表达式评估。 在一个实施例中,提供了一种机制,用户可以通过该机制指定确定XML文档中的节点的哪个子集将被从路径表达式评估中忽略的标准,并且基于路径评估指定路径操作的查询,并忽略所述标识的 节点在评估所述路径操作时。

    Mechanism for improving performance on XML over XML data using path subsetting
    3.
    发明申请
    Mechanism for improving performance on XML over XML data using path subsetting 有权
    使用路径子集提高XML数据的性能的机制

    公开(公告)号:US20060184551A1

    公开(公告)日:2006-08-17

    申请号:US11401613

    申请日:2006-04-10

    IPC分类号: G06F17/00 G06F7/00

    CPC分类号: G06F17/30938 G06F17/30321

    摘要: Techniques are provided for indexing XML documents using path subsetting. According to one embodiment, a PATH table created for storing one row for each indexed node of the XML documents using user-defined criteria. The user-defined criteria are used to determine which nodes of XML documents to included in The PATH TABLE. The PATH table row for a node includes (1) information for locating the XML document that contains the node, (2) information that identifies the path of the node, and (3) information that identifies the position of the node within the hierarchical structure of the XML document that contains the node. Use of the user defined criteria is transparent to any query improves DML indexes overhead costs.

    摘要翻译: 提供了使用路径子集对XML文档进行索引的技术。 根据一个实施例,创建用于使用用户定义的标准为XML文档的每个索引节点存储一行的PATH表。 用户定义的标准用于确定要包含在PATH TABLE中的XML文档的哪些节点。 节点的PATH表行包括(1)用于定位包含节点的XML文档的信息,(2)标识节点路径的信息,以及(3)标识分层结构中节点位置的信息 的包含节点的XML文档。 使用用户定义的条件对任何查询都是透明的,改善了DML索引的开销成本。

    Mechanism for improving performance on XML over XML data using path subsetting
    4.
    发明授权
    Mechanism for improving performance on XML over XML data using path subsetting 有权
    使用路径子集提高XML数据的性能的机制

    公开(公告)号:US07885980B2

    公开(公告)日:2011-02-08

    申请号:US11401613

    申请日:2006-04-10

    IPC分类号: G06F17/30

    CPC分类号: G06F17/30938 G06F17/30321

    摘要: Techniques are provided for indexing XML documents using path subsetting. According to one embodiment, a PATH table created for storing one row for each indexed node of the XML documents using user-defined criteria. The user-defined criteria are used to determine which nodes of XML documents to included in The PATH TABLE. The PATH table row for a node includes (1) information for locating the XML document that contains the node, (2) information that identifies the path of the node, and (3) information that identifies the position of the node within the hierarchical structure of the XML document that contains the node. Use of the user defined criteria is transparent to any query improves DML indexes overhead costs.

    摘要翻译: 提供了使用路径子集对XML文档进行索引的技术。 根据一个实施例,创建用于使用用户定义的标准为XML文档的每个索引节点存储一行的PATH表。 用户定义的标准用于确定要包含在PATH TABLE中的XML文档的哪些节点。 节点的PATH表行包括(1)用于定位包含节点的XML文档的信息,(2)标识节点路径的信息,以及(3)标识分层结构中节点位置的信息 的包含节点的XML文档。 使用用户定义的条件对任何查询都是透明的,改善了DML索引的开销成本。

    Xpath based evaluation for content stored in a hierarchical database repository using xmlindex
    8.
    发明申请
    Xpath based evaluation for content stored in a hierarchical database repository using xmlindex 审中-公开
    基于Xpath的评估用于使用xmlindex存储在分层数据库存储库中的内容

    公开(公告)号:US20080147615A1

    公开(公告)日:2008-06-19

    申请号:US11641419

    申请日:2006-12-18

    IPC分类号: G06F17/30

    CPC分类号: G06F16/8373

    摘要: A method and apparatus for efficiently processing a query that specifies a location path and a content path is provided. The location path identifies the hierarchical location of a set of documents within a resource hierarchy. The content path identifies hierarchical location of one or more nodes within the content of the set of documents. Computing the query includes using a resource hierarchy index, based on the location path, to generate first results corresponding to the set of documents. Computing the query also includes using a content index, based on the content path, to generate second results corresponding to the one or more nodes. Final results of the query are based on the first results and second results by, for example, joining the first and second results.

    摘要翻译: 提供了一种用于有效地处理指定位置路径和内容路径的查询的方法和装置。 位置路径标识资源层次结构中一组文档的分层位置。 内容路径识别文档集合内的一个或多个节点的分层位置。 计算查询包括使用基于位置路径的资源层次索引来生成与该组文档相对应的第一结果。 计算查询还包括使用基于内容路径的内容索引来生成对应于一个或多个节点的第二结果。 查询的最终结果基于第一个结果和第二个结果,例如,加入第一个和第二个结果。

    Flexible storage of XML collections within an object-relational database
    9.
    发明授权
    Flexible storage of XML collections within an object-relational database 有权
    将XML集合灵活存储在对象关系数据库中

    公开(公告)号:US09367642B2

    公开(公告)日:2016-06-14

    申请号:US11246039

    申请日:2005-10-07

    IPC分类号: G06F17/30 G06F7/00

    CPC分类号: G06F17/30923 G06F7/00

    摘要: A database server determines, on an element-level of granularity, what form of VARRAY storage to map collections of elements defined by a XML schema. A collection element may be mapped to an in-line VARRAY or an out-of-line VARRAY. The determination may based on a variety of factors, including the database type mapped to the collection element, database limitations that limit the form storage for certain database types, and annotations (“mapping annotations”) embedded within that XML schema that specifying a database type for database representation of a collection element or a form of VARRAY storage.

    摘要翻译: 数据库服务器根据粒度级别确定使用什么形式的VARRAY存储来映射由XML模式定义的元素集合。 集合元素可以被映射到串联的VARRAY或者行外的VARRAY。 确定可以基于各种因素,包括映射到集合元素的数据库类型,限制某些数据库类型的表单存储的数据库限制,以及嵌入在指定数据库类型的XML模式中的注释(“映射注释”) 用于收集元素或VARRAY存储的形式的数据库表示。

    Mechanism for efficiently evaluating operator trees
    10.
    发明授权
    Mechanism for efficiently evaluating operator trees 有权
    有效评估操作树的机制

    公开(公告)号:US07603347B2

    公开(公告)日:2009-10-13

    申请号:US10944171

    申请日:2004-09-16

    IPC分类号: G06F17/30

    摘要: An XPath expression is converted into a tree-based representation where each node represents an operation to be performed and the links between nodes in the tree represent the flow of data between operations. The conversion may involve creating a parse tree for the XPath expression, and then converting the parse tree into an operator tree. The operator tree is constructed in such a way that execution of the XPath expression begins at the leaf nodes of the operator tree, and the results are then passed up the tree. After each node is executed, the results are either (1) passed to a filter that filters the results with a predicate statement or (2) passed to another node to be operated upon. This occurs until no nodes remain to be executed.

    摘要翻译: XPath表达式被转换为基于树的表示,其中每个节点表示要执行的操作,并且树中的节点之间的链接表示操作之间的数据流。 转换可能涉及为XPath表达式创建解析树,然后将解析树转换为运算符树。 运算符树的构造方式是在运算符树的叶节点处开始执行XPath表达式,然后将结果传递给树。 在执行每个节点后,结果将被传递给过滤器的过滤器,该过滤器使用谓词语句或(2)传递给另一个要运行的节点的结果。 直到没有节点保持执行才发生。