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公开(公告)号：US07499915B2
公开(公告)日：2009-03-03
申请号：US10884311
申请日：2004-07-02
申请人： Sivasankaran Chandrasekar , Ravi Murthy , Ashish Thusoo , Anh-Tuan Tran , Sreedhar Mukkamalla , Eric Sedlar , Nipun Agarwal
发明人： Sivasankaran Chandrasekar , Ravi Murthy , Ashish Thusoo , Anh-Tuan Tran , Sreedhar Mukkamalla , Eric Sedlar , Nipun Agarwal
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： Techniques are provided for indexing XML documents. According to one embodiment, a PATH table created for storing one row for each indexed node of the XML documents. 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. If the node is associated with the value, then the PATH table row for the node may also include the value. Use of the PATH table to answer XPath queries is facilitated by secondary indexes.
摘要翻译： 提供技术用于索引XML文档。 根据一个实施例，创建用于为XML文档的每个索引节点存储一行的PATH表。 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。 如果节点与该值相关联，则该节点的PATH表行也可能包含该值。 辅助索引便于使用PATH表来回答XPath查询。
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公开(公告)号：US20050228792A1
公开(公告)日：2005-10-13
申请号：US10884311
申请日：2004-07-02
申请人： Sivasankaran Chandrasekaran , Ravi Murthy , Ashish Thusoo , Anh-Tuan Tran , Sreedhar Mukkamalla , Eric Sedlar , Nipun Agarwal
发明人： Sivasankaran Chandrasekaran , Ravi Murthy , Ashish Thusoo , Anh-Tuan Tran , Sreedhar Mukkamalla , Eric Sedlar , Nipun Agarwal
CPC分类号： G06F17/30917 , G06F17/2205 , G06F17/2229 , G06F17/2247 , G06F17/30911 , Y10S707/99933 , Y10S707/99942
摘要： Techniques are provided for indexing XML documents. According to one embodiment, a PATH table created for storing one row for each indexed node of the XML documents. 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. If the node is associated with the value, then the PATH table row for the node may also include the value. Use of the PATH table to answer XPath queries is facilitated by secondary indexes.
摘要翻译： 提供技术用于索引XML文档。 根据一个实施例，创建用于为XML文档的每个索引节点存储一行的PATH表。 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。 如果节点与该值相关联，则该节点的PATH表行也可能包含该值。 辅助索引便于使用PATH表来回答XPath查询。
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公开(公告)号：US08001127B2
公开(公告)日：2011-08-16
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
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。
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4.发明授权Efficient queribility and manageability of an XML index with path subsetting 有权具有路径子集的XML索引的高效可及性和可管理性公开(公告)号：US07493305B2
公开(公告)日：2009-02-17
申请号：US11059665
申请日：2005-02-15
申请人： Ashish Thusoo , Sivasankaran Chandrasekar , Ravi Murthy , Nipun Agarwal , Eric Sedlar , Sreedhar Mukkamalla , Reema Koo
发明人： Ashish Thusoo , Sivasankaran Chandrasekar , Ravi Murthy , Nipun Agarwal , Eric Sedlar , Sreedhar Mukkamalla , Reema Koo
IPC分类号： G06F17/30
CPC分类号： G06F17/30911 , G06F17/30935 , G06F17/30938 , Y10S707/99932 , Y10S707/99942
摘要： A method and system are provided for determining whether a given path is an indexed path of XML documents stored in a database management system. A finite state machine is built using the path subsetting rules specified by a user. The finite state machine is traversed using the given path. If any accepting states are reached during the traversal of the finite state machine, the given path is determined to matching the path subsetting rules.
摘要翻译： 提供了一种用于确定给定路径是否存储在数据库管理系统中的XML文档的索引路径的方法和系统。 使用用户指定的路径子集规则构建有限状态机。 使用给定的路径遍历有限状态机。 如果在遍历有限状态机期间达到任何接受状态，则确定给定路径以匹配路径子集规则。
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公开(公告)号：US07366735B2
公开(公告)日：2008-04-29
申请号：US11059612
申请日：2005-02-15
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： G06F17/30
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。
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6.发明授权Method and system for flexible sectioning of XML data in a database system 有权数据库系统中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。
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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。
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公开(公告)号：US20050228828A1
公开(公告)日：2005-10-13
申请号：US11059612
申请日：2005-02-15
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
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。
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9.发明申请Efficient queribility and manageability of an XML index with path subsetting 有权具有路径子集的XML索引的高效可及性和可管理性公开(公告)号：US20050228791A1
公开(公告)日：2005-10-13
申请号：US11059665
申请日：2005-02-15
申请人： Ashish Thusoo , Sivasankaran Chandrasekar , Ravi Murthy , Nipun Agarwal , Eric Sedlar , Sreedhar Mukkamalla , Reema Koo
发明人： Ashish Thusoo , Sivasankaran Chandrasekar , Ravi Murthy , Nipun Agarwal , Eric Sedlar , Sreedhar Mukkamalla , Reema Koo
IPC分类号： G06F7/00
CPC分类号： G06F17/30911 , G06F17/30935 , G06F17/30938 , Y10S707/99932 , Y10S707/99942
摘要： A method and system are provided for determining whether a given path is an indexed path of XML documents stored in a database management system. A finite state machine is built using the path subsetting rules specified by a user. The finite state machine is traversed using the given path. If any accepting states are reached during the traversal of the finite state machine, the given path is determined to matching the path subsetting rules.
摘要翻译： 提供了一种用于确定给定路径是否存储在数据库管理系统中的XML文档的索引路径的方法和系统。 使用用户指定的路径子集规则构建有限状态机。 使用给定的路径遍历有限状态机。 如果在遍历有限状态机期间达到任何接受状态，则确定给定路径以匹配路径子集规则。
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10.发明申请Method and system for flexible sectioning of XML data in a database system 有权数据库系统中XML数据的灵活分段的方法和系统公开(公告)号：US20050228818A1
公开(公告)日：2005-10-13
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
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。
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