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71. 发明授权

US08762410B2 Document level indexes for efficient processing in multiple tiers of a computer system 有权
标题翻译：用于计算机系统多层次高效处理的文档级索引
公开(公告)号：US08762410B2
公开(公告)日：2014-06-24
申请号：US11184301
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： G06F17/30911
摘要： To improve performance of performing XML operations on an XML document in by a client tier, the client generates an index that indexes the nodes of an XML document. The index may be generated, for example, by and during parsing of the XML document. The index contains similar structures to those maintained by a database server to perform XML operations on collections of XML documents. In lieu of parsing XML document to generate an index, the client may generate indexes based on data retrieved from the indexes at the database server.
摘要翻译：为了提高在客户端层对XML文档执行XML操作的性能，客户机生成一个索引，以索引XML文档的节点。索引可以例如由XML文档解析期间和解析时生成。该索引包含与由数据库服务器维护的对XML文档集合执行XML操作的类似结构。代替解析XML文档来生成索引，客户端可以基于从数据库服务器上的索引检索的数据生成索引。

72. 发明授权

US08566300B2 Mechanism for efficient maintenance of XML index structures in a database system 有权
标题翻译：在数据库系统中有效维护XML索引结构的机制
公开(公告)号：US08566300B2
公开(公告)日：2013-10-22
申请号：US11286873
申请日：2005-11-22
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： G06F17/30
CPC分类号： G06F17/30938 , G06F17/2205 , G06F17/2229 , G06F17/2247 , G06F17/30321 , G06F17/30911 , G06F17/30917
摘要： A method and apparatus for efficiently maintaining XML index structures in a database system is provided. Instead of immediately synchronizing the XML index structures for every change submitted to the database, the changes are stored in a PENDING table. The XML index structures are periodically synchronized, based on certain criteria or at a user's discretion. Between synchronizations, the XML index structures may be in stale mode or current mode. If in stale mode, a request to access indexed information will use the XML index structures to find the desired indexed information without checking the PENDING table. If in current mode, a request to access indexed information will search the XML index structures and also check the PENDING table to determine 1) whether the indexed information has been updated or deleted, and 2) whether information relevant to the request has been inserted or updated.
摘要翻译：提供了一种用于在数据库系统中有效维护XML索引结构的方法和装置。为了提交给数据库的每个更改立即同步XML索引结构，更改将存储在PENDING表中。 XML索引结构根据某些标准或用户自行决定定期同步。在同步之间，XML索引结构可能处于陈旧模式或当前模式。如果在陈旧模式下，访问索引信息的请求将使用XML索引结构来查找所需的索引信息，而不检查PENDING表。如果在当前模式下，访问索引信息的请求将搜索XML索引结构，并检查PENDING表以确定1）索引信息是否被更新或删除，以及2）是否已经插入与该请求相关的信息，更新。

73. 发明授权

US08549038B2 Pluggable session context 有权
标题翻译：可插拔会话上下文
公开(公告)号：US08549038B2
公开(公告)日：2013-10-01
申请号：US12484977
申请日：2009-06-15
申请人： Janaki Narasinghanallur , Min-Hank Ho , Eric Sedlar , Thomas Keefe , Chon Hei Lei , Vikram Pesati
发明人： Janaki Narasinghanallur , Min-Hank Ho , Eric Sedlar , Thomas Keefe , Chon Hei Lei , Vikram Pesati
IPC分类号： G06F21/00 , G06F7/00
CPC分类号： G06F17/30289 , G06F17/3056
摘要： A method and apparatus are described for sharing a session to access a database. A database server receives, in a session, a session context identifier and a command. The session context identifier identifies a session context to use for the session. The session context is a set of information or commands that plug into a session state and specify how commands in the session are to be performed for a particular user or privilege level. In response to receiving the identifier, the database server associates the session context with the database session for the connection. The database server uses the session context to process the command. The session context may then be detached from the session, allowing another user to attach to the session via another session context.
摘要翻译：描述了一种用于共享会话以访问数据库的方法和装置。数据库服务器在会话中接收会话上下文标识符和命令。会话上下文标识符标识用于会话的会话上下文。会话上下文是一组插入会话状态的信息或命令，并指定如何为特定用户或特权级别执行会话中的命令。响应于接收到标识符，数据库服务器将会话上下文与连接的数据库会话相关联。数据库服务器使用会话上下文来处理命令。然后会话上下文可以从会话分离，允许另一用户经由另一会话上下文附加到会话。

74. 发明授权

US08335775B1 Versioning in internet file system 有权
标题翻译：互联网文件系统中的版本控制
公开(公告)号：US08335775B1
公开(公告)日：2012-12-18
申请号：US09571696
申请日：2000-05-15
申请人： Eric Sedlar , Michael J. Roberts
发明人： Eric Sedlar , Michael J. Roberts
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F21/6218 , G06F17/30165 , G06F17/30233 , Y10S707/99931 , Y10S707/99933 , Y10S707/99943
摘要： Techniques are provided for managing file versions. In one technique, versions of directories are created responsive to creation of versions of files descendant from the directories. Directory versions are associated with times. Interfile links are maintained so file versions descendant from a directory version reflect the directory version's time. In another technique, a mechanism is provided for tagging file versions that shouldn't be overwritten. Responsive to a first file version's update, it is determined whether that version is tagged. If so, a second version is stored while retaining the first version. Otherwise, the first version is deleted responsive to the second version's storage. In another technique, responsive to a first file version's change, it is determined whether first criteria are satisfied. If so, a second version is created while retaining the first version, and versions of the file's ancestor files that satisfy second criteria are created.
摘要翻译：提供技术来管理文件版本。在一种技术中，创建目录的版本是响应于创建目录中后代文件的版本。目录版本与时间相关联。维护Interfile链接，从目录版本的文件版本后代反映目录版本的时间。在另一种技术中，提供了一种用于标记不应被覆盖的文件版本的机制。响应于第一个文件版本的更新，确定是否标记该版本。如果是这样，在保留第一个版本的同时存储第二个版本。否则，响应于第二版本的存储，第一个版本被删除。在另一技术中，响应于第一文件版本的改变，确定是否满足第一标准。如果是这样，在保留第一个版本的同时创建第二个版本，并创建满足第二个条件的文件祖先文件的版本。

75. 发明授权

US08176007B2 Performing an action in response to a file system event 有权
标题翻译：执行响应文件系统事件的操作
公开(公告)号：US08176007B2
公开(公告)日：2012-05-08
申请号：US13026131
申请日：2011-02-11
申请人： Thuvan Hoang , Sam Idicula , Nipun Agarwal , Ravi Murthy , Asha Tarachandani , Namit Jain , Eric Sedlar
发明人： Thuvan Hoang , Sam Idicula , Nipun Agarwal , Ravi Murthy , Asha Tarachandani , Namit Jain , Eric Sedlar
IPC分类号： G06F7/00
CPC分类号： G06F17/30067 , G06F9/542
摘要： A method and apparatus for performing an action in response to a file system event is provided. According to one aspect, sets of “event listeners” are associated with a file hierarchy and/or the nodes thereof. Each event listener contains a set of “event handlers.” Each event handler corresponds to a separate type of event that may occur relative to the file hierarchy's nodes. When an event is going to occur relative to the hierarchy or a node thereof, all event listeners that are associated with that hierarchy/node are inspected to determine whether those event listeners contain any event handlers that correspond to the event's type. Those event handlers that correspond to the event's type are placed in an ordered list of event handlers to be invoked. As the event handlers in the list are invoked, programmatic mechanisms that correspond to those event handlers are executed to perform customized user-specified actions.
摘要翻译：提供了一种用于响应于文件系统事件执行动作的方法和装置。根据一个方面，“事件监听器”的集合与文件层级和/或其节点相关联。每个事件监听器包含一组“事件处理程序”。每个事件处理程序对应于可能相对于文件层次结构节点发生的单独的事件类型。当相对于层级或其节点将发生事件时，检查与该层级/节点相关联的所有事件监听器，以确定这些事件监听器是否包含与事件类型相对应的任何事件处理程序。与事件类型相对应的事件处理程序被放置在要调用的事件处理程序的有序列表中。在列表中的事件处理程序被调用时，执行与那些事件处理程序相对应的程序化机制来执行定制的用户指定的操作。

76. 发明授权

US08073841B2 Optimizing correlated XML extracts 有权
标题翻译：优化相关的XML提取
公开(公告)号：US08073841B2
公开(公告)日：2011-12-06
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： G06F7/00 , G06F17/30 , G06F17/20
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。

77. 发明授权

US07930277B2 Cost-based optimizer for an XML data repository within a database 有权
标题翻译：数据库中XML数据存储库的基于成本的优化器
公开(公告)号：US07930277B2
公开(公告)日：2011-04-19
申请号：US10830211
申请日：2004-04-21
申请人： Fei Ge , Sivasankaran Chandrasekar , Nipun Agarwal , Ravi Murthy , Eric Sedlar
发明人： Fei Ge , Sivasankaran Chandrasekar , Nipun Agarwal , Ravi Murthy , Eric Sedlar
IPC分类号： G06F7/00 , G06F17/00
CPC分类号： G06F17/30935
摘要： Cost-based optimizer functionality for an XML database repository provides means for optimizing the execution of database queries that access XML resources in the database repository. Statistics about XML resources that are stored in the database repository are gathered, stored and utilized by a query optimizer to compute computational costs associated with each of multiple methods of accessing particular XML resources requested in a database query. Hence, the optimizer is able to select the most efficient query execution plan based on the costs of possible access paths. In one embodiment, specific statistics about the hierarchical structure of XML resources stored in the XML database repository are gathered, stored in a relational table in the database management system, and used to compute the selectivity of query predicates and the index cost associated with traversing one or more indexes to access requested XML resources.
摘要翻译：用于XML数据库的基于成本的优化器功能提供了优化访问数据库存储库中的XML资源的数据库查询的执行的方法。存储在数据库存储库中的关于XML资源的统计信息由查询优化器收集，存储和使用，以计算与访问数据库查询中请求的特定XML资源的多种方法中的每一种相关联的计算成本。因此，优化器能够基于可能的访问路径的成本来选择最有效的查询执行计划。在一个实施例中，收集存储在XML数据库存储库中的XML资源的层次结构的具体统计信息，存储在数据库管理系统中的关系表中，并用于计算查询谓词的选择性和与遍历一个相关联的索引成本或更多的索引来访问所请求的XML资源。

78. 发明授权

US07921076B2 Performing an action in response to a file system event 有权
标题翻译：执行响应文件系统事件的操作
公开(公告)号：US07921076B2
公开(公告)日：2011-04-05
申请号：US11014502
申请日：2004-12-15
申请人： Thuvan Hoang , Sam Idicula , Nipun Agarwal , Ravi Murthy , Asha Tarachandani , Namit Jain , Eric Sedlar
发明人： Thuvan Hoang , Sam Idicula , Nipun Agarwal , Ravi Murthy , Asha Tarachandani , Namit Jain , Eric Sedlar
IPC分类号： G06F7/00
CPC分类号： G06F17/30067 , G06F9/542
摘要： A method and apparatus for performing an action in response to a file system event is provided. According to one aspect, sets of “event listeners” are associated with a file hierarchy and/or the nodes thereof. Each event listener contains a set of “event handlers.” Each event handler corresponds to a separate type of event that may occur relative to the file hierarchy's nodes. When an event is going to occur relative to the hierarchy or a node thereof, all event listeners that are associated with that hierarchy/node are inspected to determine whether those event listeners contain any event handlers that correspond to the event's type. Those event handlers that correspond to the event's type are placed in an ordered list of event handlers to be invoked. As the event handlers in the list are invoked, programmatic mechanisms that correspond to those event handlers are executed to perform customized user-specified actions.
摘要翻译：提供了一种用于响应于文件系统事件执行动作的方法和装置。根据一个方面，“事件监听器”的集合与文件层级和/或其节点相关联。每个事件监听器包含一组“事件处理程序”。每个事件处理程序对应于可能相对于文件层次结构节点发生的单独的事件类型。当相对于层级或其节点将发生事件时，检查与该层级/节点相关联的所有事件监听器，以确定这些事件监听器是否包含与事件类型相对应的任何事件处理程序。与事件类型相对应的事件处理程序被放置在要调用的事件处理程序的有序列表中。在列表中的事件处理程序被调用时，执行与那些事件处理程序相对应的程序化机制来执行定制的用户指定的操作。

79. 发明授权

US07885980B2 Mechanism for improving performance on XML over XML data using path subsetting 有权
标题翻译：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
申请人： Asha Tarachandani , Sivasankaran Chandrasekar , Nipun Agarwal , Eric Sedlar , Ravi Murthy , Anh-Tuan Tran
发明人： Asha Tarachandani , Sivasankaran Chandrasekar , Nipun Agarwal , Eric Sedlar , Ravi Murthy , Anh-Tuan Tran
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。

80. 发明授权

US07870163B2 Implementation of backward compatible XML schema evolution in a relational database system 有权
标题翻译：在关系数据库系统中实现向后兼容的XML模式演进
公开(公告)号：US07870163B2
公开(公告)日：2011-01-11
申请号：US11540341
申请日：2006-09-28
申请人： Abhyudaya Agrawal , Thomas Baby , Nipun Agarwal , Sam Idicula , Ravi Murthy , Eric Sedlar
发明人： Abhyudaya Agrawal , Thomas Baby , Nipun Agarwal , Sam Idicula , Ravi Murthy , Eric Sedlar
IPC分类号： G06F17/30
CPC分类号： G06F17/2247
摘要： In-place XML schema evolution occurs by evaluating an existing XML schema in a database system to see if it is compatible with a new XML schema. To determine if the old schema is compatible with the new schema, a lock-step traversal is performed on the two schemas. Each instruction in the old schema is compared to instructions in the new schema. Detected differences between the two schemas are evaluated to determine if existing XML documents are still compatible with the new schema. If they are, then an in-place schema evolution operation can take place. The in-place schema operation basically, involves appending the updated object information to the underlying object type and preserving the order of elements in a document by storing element mapping information on disk.
摘要翻译：通过评估数据库系统中的现有XML模式来查看是否与新的XML模式兼容，就会发生就地XML模式演进。为了确定旧模式是否与新模式兼容，在两个模式上执行锁步遍历。将旧模式中的每个指令与新模式中的指令进行比较。对两个模式之间的检测差异进行评估，以确定现有XML文档是否仍然与新模式兼容。如果它们是，则可以进行就地模式演进操作。就地模式操作基本上包括将更新的对象信息附加到底层对象类型，并通过在盘上存储元素映射信息来保留文档中元素的顺序。

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