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31. 发明授权

US07921101B2 Index maintenance for operations involving indexed XML data 有权
标题翻译：涉及索引XML数据的操作的索引维护
公开(公告)号：US07921101B2
公开(公告)日：2011-04-05
申请号：US12173323
申请日：2008-07-15
申请人： Ravi Murthy , Sivasankaran Chandrasekaran , Ashish Thusoo , Nipun Agarwal , Eric Sedlar
发明人： Ravi Murthy , Sivasankaran Chandrasekaran , Ashish Thusoo , Nipun Agarwal , Eric Sedlar
IPC分类号： G06F17/30
CPC分类号： G06F17/30917 , G06F17/2241 , G06F17/2247 , G06F17/30911 , Y10S707/99942 , Y10S707/99952
摘要： A method and system are provided for maintaining an XML index in response to piece-wise modifications on indexed XML documents. The database server that manages the XML index determines which nodes are involved in the piece-wise modifications, and updates the XML index based on only those nodes. Index entries for nodes not involved in the piece-wise modifications remain unchanged.
摘要翻译：提供了一种方法和系统，用于响应于对索引的XML文档的分段修改来维护XML索引。管理XML索引的数据库服务器确定哪些节点涉及分段修改，并仅基于这些节点更新XML索引。不参与分段修改的节点的索引条目保持不变。

32. 发明授权

US07849106B1 Efficient mechanism to support user defined resource metadata in a database repository 有权
标题翻译：有效的机制来支持数据库存储库中用户定义的资源元数据
公开(公告)号：US07849106B1
公开(公告)日：2010-12-07
申请号：US11003611
申请日：2004-12-03
申请人： Abhyudaya Agrawal , Ravi Murthy , Nipun Agarwal , Eric Sedlar
发明人： Abhyudaya Agrawal , Ravi Murthy , Nipun Agarwal , Eric Sedlar
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： G06F17/30525
摘要： A method and apparatus for facilitating the management of metadata is disclosed, specifically by associating metadata with an XML schema. The database system provides a method that allows end users to maintain additional information describing resources. User-defined metadata attributes are associated as an XML schema which in turn is mapped to a table, referred to as the user metadata table. The XML schema contains user-defined information specifying the metadata that the end-user wants the system to store and maintain. Additionally, a reference is created between an entry in the user metadata table and its corresponding resource entry in the resource table. The resources are accessed directly or by issuing queries against the user metadata table. The querying of the user metadata table gains the benefit of fast and efficient query results and access time.
摘要翻译：具体地，通过将元数据与XML模式相关联来公开用于促进元数据管理的方法和装置。数据库系统提供了一种允许最终用户维护描述资源的附加信息的方法。用户定义的元数据属性作为XML模式进行关联，XML模式又被映射到表，称为用户元数据表。 XML模式包含用户定义的信息，指定最终用户希望系统存储和维护的元数据。此外，在用户元数据表中的条目和资源表中的相应资源条目之间创建引用。可以直接访问资源，或通过对用户元数据表发出查询。查询用户元数据表可以获得快速高效的查询结果和访问时间的优点。

33. 发明申请

US20100011010A1 METHOD AND MECHANISM FOR EFFICIENT STORAGE AND QUERY OF XML DOCUMENTS BASED ON PATHS 有权
标题翻译：基于PATHS的XML文档的有效存储和查询的方法和机制
公开(公告)号：US20100011010A1
公开(公告)日：2010-01-14
申请号：US12352757
申请日：2009-01-13
申请人： Ravi Murthy , Nipun Agarwal , Eric Sedlar
发明人： Ravi Murthy , Nipun Agarwal , Eric Sedlar
IPC分类号： G06F7/00
CPC分类号： G06F17/30914
摘要： A method, mechanism, and computer program product for storing, accessing, and managing XML data is disclosed. The approach supports efficient evaluation of XPath queries and also improves the performance of data/fragment extraction. The approach can be applied to schema-less documents. The approach is applicable to all database systems and other servers which support storing and managing XML content. In addition, the approach can be applied to store, manage, and retrieve other types of unstructured or semi-structured data in a database system.
摘要翻译：公开了一种用于存储，访问和管理XML数据的方法，机制和计算机程序产品。该方法支持对XPath查询的高效评估，并且还提高了数据/片段提取的性能。该方法可以应用于无模式文档。该方法适用于所有支持存储和管理XML内容的数据库系统和其他服务器。此外，该方法可以应用于在数据库系统中存储，管理和检索其他类型的非结构化或半结构化数据。

34. 发明授权

US07627547B2 Processing path-based database operations 有权
标题翻译：处理基于路径的数据库操作
公开(公告)号：US07627547B2
公开(公告)日：2009-12-01
申请号：US10999864
申请日：2004-11-29
申请人： Namit Jain , Fei Ge , Ravi Murthy , Subramanian Muralidhar , Nipun Agarwal , Eric Sedlar
发明人： Namit Jain , Fei Ge , Ravi Murthy , Subramanian Muralidhar , Nipun Agarwal , Eric Sedlar
IPC分类号： G06F7/00
CPC分类号： G06F17/30091 , G06F17/30233 , Y10S707/99931
摘要： A method and apparatus for processing path-based database operations is provided. According to one aspect, a “parent row ID” column is added to a directory links table. For each row in the table, the value of the “parent row ID” column indicates the row ID, in the table, of the node that is that row's node's parent in the file hierarchy. To determine whether a particular node is within a specified path of the file hierarchy, the particular node's pathname is derived by visiting child-to-parent links indicated in the table and prepending, to the front of a pathname being constructed for the particular node, node names indicated in the visited rows. Each parent node's row in the directory links table is located using the “parent row ID” column of the child node's row. The resulting pathname is compared with the specified path to determine whether the particular node exists therein.
摘要翻译：提供了一种用于处理基于路径的数据库操作的方法和装置。根据一个方面，将“父行ID”列添加到目录链接表。对于表中的每一行，“父行ID”列的值表示表中该行的文件层次结构中该节点的父节点的行ID。为了确定特定节点是否在文件层次结构的指定路径内，特定节点的路径名是通过访问表中指示的前后的子对象链接导出到为特定节点构建的路径名的前面，访问行中指示的节点名称。目录链接表中的每个父节点的行都使用子节点行的“父行ID”列进行定位。将得到的路径名与指定的路径进行比较，以确定特定节点是否存在于其中。

35. 发明授权

US07603347B2 Mechanism for efficiently evaluating operator trees 有权
标题翻译：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
申请人： Ashish Thusoo , Ravi Murthy , Sivasankaran Chandrasekar , Eric Sedlar , Nipun Agarwal
发明人： Ashish Thusoo , Ravi Murthy , Sivasankaran Chandrasekar , Eric Sedlar , Nipun Agarwal
IPC分类号： G06F17/30
CPC分类号： G06F17/30917 , G06F17/30911 , Y10S707/99934
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。

36. 发明授权

US07461074B2 Method and system for flexible sectioning of XML data in a database system 有权
标题翻译：数据库系统中XML数据的灵活分段的方法和系统
公开(公告)号：US07461074B2
公开(公告)日：2008-12-02
申请号：US11083828
申请日：2005-03-18
申请人： Ravi Murthy , Eric Sedlar , Sivasankaran Chandrasekar , Ashish Thusoo , Nipun Agarwal , Sreedhar Mukkamalla
发明人： Ravi Murthy , Eric Sedlar , Sivasankaran Chandrasekar , Ashish Thusoo , Nipun Agarwal , Sreedhar Mukkamalla
IPC分类号： G06F17/30
CPC分类号： G06F17/30917 , G06F17/2205 , G06F17/2229 , G06F17/2247 , G06F17/30911 , Y10S707/99933 , Y10S707/99942
摘要： A method and system are provided for flexibly sectioning XML documents stored in a relational database system. The method includes obtaining a set of sectioning rules; receiving an XML document that is to be stored in the relational database system; and identifying a storage location for each node in the XML document based on the set of sectioning rules. The sectioning rules can also be used to determine which tables in the relational database should be queried when a query is received, and to determine which tables in the relational database should be updated when a command to update stored XML data is received.
摘要翻译：提供了一种方法和系统，用于灵活地划分存储在关系数据库系统中的XML文档。该方法包括获得一组分段规则; 接收要存储在关系数据库系统中的XML文档; 并基于一组分段规则识别XML文档中每个节点的存储位置。分段规则还可用于确定在接收到查询时应查询关系数据库中的哪些表，并确定在接收到更新存储的XML数据的命令时，关系数据库中哪些表应更新。

37. 发明申请

US20080275919A1 INDEX MAINTENANCE FOR OPERATIONS INVOLVING INDEXED XML DATA 有权
标题翻译：索引维护涉及索引XML数据的操作
公开(公告)号：US20080275919A1
公开(公告)日：2008-11-06
申请号：US12173323
申请日：2008-07-15
申请人： Ravi Murthy , Sivasankaran Chandrasekaran , Ashish Thusoo , Nipun Agarwal , Eric Sedlar
发明人： Ravi Murthy , Sivasankaran Chandrasekaran , Ashish Thusoo , Nipun Agarwal , Eric Sedlar
IPC分类号： G06F17/30
CPC分类号： G06F17/30917 , G06F17/2241 , G06F17/2247 , G06F17/30911 , Y10S707/99942 , Y10S707/99952
摘要： A method and system are provided for maintaining an XML index in response to piece-wise modifications on indexed XML documents. The database server that manages the XML index determines which nodes are involved in the piece-wise modifications, and updates the XML index based on only those nodes. Index entries for nodes not involved in the piece-wise modifications remain unchanged.
摘要翻译：提供了一种方法和系统，用于响应于对索引的XML文档的分段修改来维护XML索引。管理XML索引的数据库服务器确定哪些节点涉及分段修改，并仅基于这些节点更新XML索引。不参与分段修改的节点的索引条目保持不变。

38. 发明申请

US20080195668A1 EFFICIENT EXTRACTION OF XML CONTENT STORED IN A LOB 有权
标题翻译：有效提取存储在LOB中的XML内容
公开(公告)号：US20080195668A1
公开(公告)日：2008-08-14
申请号：US12103880
申请日：2008-04-16
申请人： Sivasankaran Chandrasekar , Ashish Thusoo , Ravi Murthy , Nipun Agarwal , Eric Sedlar , Sreedhar Mukkamalla
发明人： Sivasankaran Chandrasekar , Ashish Thusoo , Ravi Murthy , Nipun Agarwal , Eric Sedlar , Sreedhar Mukkamalla
IPC分类号： G06F17/00
CPC分类号： G06F17/30914 , G06F17/30911 , G06F17/30929 , Y10S707/99942 , Y10S707/99943 , Y10S707/99945 , Y10S707/99948
摘要： A method and system are provided for extracting a valid, self-contained fragment for a node in a XML document stored in a database management system. An XML index is used to identify a location in which XML fragment data corresponding to the node is located. Ancestors of the node are identified and examined for any information needed for the proper interpretation of the fragment. If an ancestor node contains such needed information, this information is patched into the XML fragment to ensure that the fragment is a valid, self-contained XML fragment.
摘要翻译：提供了一种用于提取存储在数据库管理系统中的XML文档中的节点的有效的，独立的片段的方法和系统。 XML索引用于标识与节点对应的XML片段数据所在的位置。识别和检查节点的祖先，以便适当解释片段所需的任何信息。如果祖先节点包含这些所需的信息，则将该信息修补到XML片段中，以确保该片段是有效的，独立的XML片段。

39. 发明申请

US20070271305A1 Efficient piece-wise updates of binary encoded XML data 有权
标题翻译：二进制编码的XML数据的高效分片更新
公开(公告)号：US20070271305A1
公开(公告)日：2007-11-22
申请号：US11437512
申请日：2006-05-18
申请人： Sivansankaran Chandrasekar , Nitin Gupta , Ravi Murthy , Nipun Agarwal , Eric Sedlar
发明人： Sivansankaran Chandrasekar , Nitin Gupta , Ravi Murthy , Nipun Agarwal , Eric Sedlar
IPC分类号： G06F17/30 , G06F7/00 , G06F17/00
CPC分类号： G06F17/24 , G06F17/22 , G06F17/2247 , G06F17/2264 , G06F17/30911 , G06F17/30917
摘要： An XML document can be represented in a compact binary form that maintains all of the features of XML data in a useable form. In response to a request for a modification (e.g., insert, delete or update a node) to an XML document that is stored in the compact binary form, a certain representation of the requested modification is computed for application directly to the binary form of the document. Thus, the requested modification is applied directly to the persistently stored binary form without constructing an object tree or materializing the XML document into a corresponding textual form. Taking into account the nature of the binary form in which the document is encoded, the bytes that actually require change are identified, including identifying where in the binary representation the corresponding actual changes need to be made.
摘要翻译： XML文档可以以紧凑的二进制形式表示，以可用的形式维护XML数据的所有功能。响应于以紧凑二进制形式存储的XML文档的修改（例如，插入，删除或更新节点）的请求，对所请求的修改的特定表示被直接计算到二进制形式的文件。因此，所请求的修改直接应用于永久存储的二进制形式，而不构造对象树或将XML文档实现为相应的文本形式。考虑到文档编码的二进制形式的性质，确定实际需要更改的字节，包括识别二进制表示中需要进行相应实际更改的位置。

40. 发明申请

US20070083809A1 Optimizing correlated XML extracts 有权
标题翻译：优化相关的XML提取
公开(公告)号：US20070083809A1
公开(公告)日：2007-04-12
申请号：US11246037
申请日：2005-10-07
申请人： Asha Tarachandani , Sivasankaran Chandrasekar , Nipun Agarwal , Ravi Murthy , Eric Sedlar
发明人： Asha Tarachandani , Sivasankaran Chandrasekar , Nipun Agarwal , Ravi Murthy , Eric Sedlar
IPC分类号： G06F17/00
CPC分类号： G06F17/30935 , G06F17/30917
摘要： Queries that request fields that are contained in the same XML fragments are written to execute them more efficiently.
摘要翻译：编写请求包含在相同XML片段中的字段的查询将被更高效地执行。

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