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81. 发明申请

US20070016605A1 Mechanism for computing structural summaries of XML document collections in a database system 审中-公开
标题翻译：在数据库系统中计算XML文档集合的结构摘要的机制
公开(公告)号：US20070016605A1
公开(公告)日：2007-01-18
申请号：US11184302
申请日：2005-07-18
申请人： Ravi Murthy , Sivasankaran Chandrasekar , Eric Sedlar , Nipun Agarwal
发明人： Ravi Murthy , Sivasankaran Chandrasekar , Eric Sedlar , Nipun Agarwal
IPC分类号： G06F7/00
CPC分类号： G06F17/2247
摘要： A “structural summary” of a collection of XML documents is generated. The structural summary is a skeleton tree that represents all parent-child relationships found in a XML document collection.
摘要翻译：生成XML文档集合的“结构摘要”。结构摘要是一个骨架树，表示在XML文档集合中找到的所有父子关系。

82. 发明申请

US20050228818A1 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：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
IPC分类号： G06F17/00 , G06F17/22 , 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。

83. 发明申请

US20050228768A1 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：US20050228768A1
公开(公告)日：2005-10-13
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： G06F9/44 , G06F17/21 , 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。

84. 发明申请

US20050055326A1 Method and system of handling document operation requests on documents having large collections with constrained memory 有权
标题翻译：在具有受限内存的大集合的文档上处理文档操作请求的方法和系统
公开(公告)号：US20050055326A1
公开(公告)日：2005-03-10
申请号：US10656795
申请日：2003-09-06
申请人： Ashish Thusoo , Sivasankaran Chandrasekar , Ravi Murthy , Eric Sedlar , Nipun Agarwal
发明人： Ashish Thusoo , Sivasankaran Chandrasekar , Ravi Murthy , Eric Sedlar , Nipun Agarwal
IPC分类号： G06F17/30 , G06F7/00
CPC分类号： G06F17/30011 , Y10S707/99931 , Y10S707/99932 , Y10S707/99953
摘要： A method and system of handling document operation requests on documents with large collections and constrained memory is disclosed. In some embodiments, when one or more collection elements of a document are required to be in memory for a document operation, each of the one or more required collection elements not already in the memory are loaded into a collection partition in the memory before the document operation is executed.
摘要翻译：公开了一种处理文档操作请求的方法和系统，该文档操作请求具有大的集合和约束的内存的文档。在一些实施例中，当文档的一个或多个收集元素被要求在用于文档操作的存储器中时，尚未在存储器中的一个或多个所需的收集元件中的每一个都将被加载到存储器中的收集分区中执行操作。

85. 发明授权

US07260585B2 Apparatus and method for mapping relational data and metadata to XML 有权
标题翻译：将关系数据和元数据映射到XML的设备和方法
公开(公告)号：US07260585B2
公开(公告)日：2007-08-21
申请号：US10897578
申请日：2004-07-23
申请人： Muralidhar Krishnaprasad , Viswanathan Krishnamurthy , Ravi Murthy , Visar Nimani
发明人： Muralidhar Krishnaprasad , Viswanathan Krishnamurthy , Ravi Murthy , Visar Nimani
IPC分类号： G06F17/30
CPC分类号： G06F17/30595 , Y10S707/954 , Y10S707/99931 , Y10S707/99933 , Y10S707/99943
摘要： Techniques are provided for mapping XML data and metadata from data in relational databases. According to certain embodiments of the invention, a mechanism is provided to allow the user to use a database query to retrieve data form a relational database in the form of XML documents by canonically mapping object relational data to XML data and canonically mapping object relational schemas to XML-Schemas. The mechanism causes the generation of XML-schema information for the XML documents.
摘要翻译：提供了用于从关系数据库中的数据映射XML数据和元数据的技术。根据本发明的某些实施例，提供了一种机制，以允许用户使用数据库查询以XML文档的形式从关系数据库中检索数据，方法是将对象关系数据定性地映射到XML数据，并将对象关系模式映射到 XML模式该机制导致为XML文档生成XML模式信息。

86. 发明授权

US07024425B2 Method and apparatus for flexible storage and uniform manipulation of XML data in a relational database system 有权
公开(公告)号：US07024425B2
公开(公告)日：2006-04-04
申请号：US09948998
申请日：2001-09-06
申请人： Muralidhar Krishnaprasad , Viswanathan Krishnamurthy , Ravi Murthy
发明人： Muralidhar Krishnaprasad , Viswanathan Krishnamurthy , Ravi Murthy
IPC分类号： G06F7/00
CPC分类号： G06F17/30595 , Y10S707/99933 , Y10S707/99943 , Y10S707/99945 , Y10S707/99948
摘要： Techniques are provided for XML data storage and query rewrites in relational databases. According to certain embodiments of the invention, a mechanism is provided to allow the user to store an XML document in a relational database and to submit mapping information that indicates a mapping of each field of the XML document to the column in the relational database in which the data from each field is stored. If the user submits an XML query to access the data in the XML document that is stored in the relational database, then a mechanism is provided to generate a database query based on the XML query and the mapping information.

87. 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。

88. 发明申请

US20060117049A1 Processing path-based database operations 有权
公开(公告)号：US20060117049A1
公开(公告)日：2006-06-01
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： G06F17/00
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.

89. 发明授权

US08949455B2 Path-caching mechanism to improve performance of path-related operations in a repository 有权
标题翻译：路径缓存机制，以提高存储库中路径相关操作的性能
公开(公告)号：US08949455B2
公开(公告)日：2015-02-03
申请号：US11284521
申请日：2005-11-21
申请人： Sam Idicula , Nipun Agarwal , Ravi Murthy , Eric Sedlar
发明人： Sam Idicula , Nipun Agarwal , Ravi Murthy , Eric Sedlar
IPC分类号： G06F15/173 , G06F17/30
CPC分类号： G06F17/30893 , G06F12/0246 , G06F12/0817 , G06F12/0833 , G06F17/30091 , G06F17/30595 , G06F2212/62 , G06F2212/622 , G06F2212/7204
摘要： A method and apparatus for processing path-based database operations is provided. According to one aspect, a path cache is maintained. For each hierarchical node that is traversed during a path-determining operation, it is determined whether a cache entry corresponding to that node is already contained in the path cache. If such a cache entry is already contained in the path cache, then the path indicated in that cache entry is used to complete the pathname for the node for which the operation is being performed. As a result, hierarchically higher nodes do not need to be traversed to complete the operation. Alternatively, if such a cache entry is not already contained in the path cache, then a cache entry for the node currently being traversed is generated and inserted into the path cache for use in subsequent path-determining operations.
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，维护路径高速缓存。对于在路径确定操作期间遍历的每个分级节点，确定与该节点相对应的高速缓存条目是否已经包含在路径高速缓存中。如果这样的缓存条目已经包含在路径缓存中，则使用该缓存条目中指示的路径来完成正在执行该操作的节点的路径名。因此，不需要遍历层次更高的节点来完成操作。或者，如果这样的高速缓存条目尚未包含在路径高速缓存中，则生成用于当前正在遍历的节点的高速缓存条目并将其插入到路径高速缓存中以用于随后的路径确定操作。

90. 发明授权

US08943045B2 Mechanisms for efficient autocompletion in XML search applications 有权
标题翻译： XML搜索应用程序中高效自动完成的机制
公开(公告)号：US08943045B2
公开(公告)日：2015-01-27
申请号：US12360919
申请日：2009-01-28
申请人： Ravi Murthy
发明人： Ravi Murthy
IPC分类号： G06F17/30 , G06F7/00 , G06F17/27
CPC分类号： G06F17/30938 , G06F17/276
摘要： Mechanisms are described for providing auto-completion capability in a user interface that allows users to search for XML tags and data in a collection of XML documents. A user searching for data in XML documents might not be aware of the entire structure of the data. A path context may be specified for narrowing the search to a particular set of nodes within the documents in the collection. When the user is in the process of typing in an XML tag name, but prior to submitting the tag name to the search engine, the user interface presents an ordered list of completed XML tags that match the prefix typed by the user. The order of the tags in the list reflects the frequency of the completed tags found within the specified path context of the collection of documents. Likewise, when the user is in the process of typing a string of text to be searched for within the value of XML nodes in the set of documents, but prior to submitting the test string to the search engine, the user interface presents an ordered list of completed text strings that match the partially specified text, where the order of the completed text strings reflects their frequency within the specified path context in the collection of documents.
摘要翻译：描述了在用户界面中提供自动完成功能的机制，允许用户在XML文档集合中搜索XML标签和数据。在XML文档中搜索数据的用户可能不知道数据的整个结构。可以指定路径上下文以将搜索缩小到集合中的文档内的特定节点集合。当用户正在键入XML标签名称的过程中，但是在将标签名称提交给搜索引擎之前，用户界面将显示与用户键入的前缀匹配的完整XML标签的有序列表。列表中的标签的顺序反映了在文档集合的指定路径上下文中找到的已完成标签的频率。类似地，当用户正在文档集合中的XML节点的值内键入要搜索的文本串的过程中，但是在将测试字符串提交给搜索引擎之前，用户界面呈现有序列表的完整文本字符串与部分指定的文本匹配，其中完成的文本字符串的顺序反映其在文档集合中指定的路径上下文中的频率。

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