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1. 发明授权

US09305238B2 Framework for supporting regular expression-based pattern matching in data streams 有权
标题翻译：支持数据流中基于正则表达式的模式匹配的框架
公开(公告)号：US09305238B2
公开(公告)日：2016-04-05
申请号：US12548187
申请日：2009-08-26
申请人： Anand Srinivasan , Rakesh Komuravelli , Namit Jain , Shailendra Mishra
发明人： Anand Srinivasan , Rakesh Komuravelli , Namit Jain , Shailendra Mishra
IPC分类号： G06F17/30 , G06K9/62
CPC分类号： G06K9/62
摘要： Techniques for detecting patterns in one or more data or event streams. A pattern to be detected may be specified using a regular expression. Events received in a data stream are processed during runtime to detect occurrences of the specified pattern in the data stream. In one embodiment, a pattern type or class is determined for the specified pattern and pattern matching is performed using a technique selected based upon the type or class determined for the specified pattern.
摘要翻译：用于检测一个或多个数据或事件流中的模式的技术。可以使用正则表达式来指定要检测的模式。在运行期间处理在数据流中接收的事件，以检测数据流中指定模式的出现。在一个实施例中，对于指定的图案确定图案类型或类别，并且使用基于为指定图案确定的类型或类别而选择的技术来执行图案匹配。

2. 发明授权

US08849794B2 Compile time opcodes for efficient runtime interpretation of variables for database queries and DML statements 有权
标题翻译：用于数据库查询和DML语句的变量的有效运行时解释的编译时间操作码
公开(公告)号：US08849794B2
公开(公告)日：2014-09-30
申请号：US13052928
申请日：2011-03-21
申请人： Kumar Rajamani , Namit Jain
发明人： Kumar Rajamani , Namit Jain
IPC分类号： G06F17/30
CPC分类号： G06F17/30433
摘要： A method system and program for performing a query in which context and information including opcodes accompanies an execution plan for the query. The opcodes determine operations to retrieve a set of bind variables. The execution plan and context information shared by a plurality of application programs.
摘要翻译：一种用于执行查询的方法系统和程序，其中包括操作码的上下文和信息伴随着查询的执行计划。操作码确定检索一组绑定变量的操作。由多个应用程序共享的执行计划和上下文信息。

3. 发明授权

US08387076B2 Standardized database connectivity support for an event processing server 有权
标题翻译：事件处理服务器的标准化数据库连接支持
公开(公告)号：US08387076B2
公开(公告)日：2013-02-26
申请号：US12506905
申请日：2009-07-21
申请人： Mohit Thatte , Sandeep Bishnoi , Namit Jain , Anand Srinivasan , Shailendra Mishra
发明人： Mohit Thatte , Sandeep Bishnoi , Namit Jain , Anand Srinivasan , Shailendra Mishra
IPC分类号： G06F9/46 , G06F17/30
CPC分类号： G06F17/3056 , G06F9/541
摘要： Techniques for facilitating communication between one or more client applications and an event processing server. In one set of embodiments, a framework is provided that enables a client application to communicate with an event processing server via a standard database connectivity API, such as Java Database Connectivity (JDBC).
摘要翻译：用于促进一个或多个客户端应用与事件处理服务器之间的通信的技术。在一组实施例中，提供了一种框架，其使得客户端应用程序能够通过诸如Java数据库连接（JDBC）的标准数据库连接API与事件处理服务器进行通信。

4. 发明授权

US08019747B2 Facilitating flexible windows in data stream management systems 有权
标题翻译：促进数据流管理系统中的灵活窗口
公开(公告)号：US08019747B2
公开(公告)日：2011-09-13
申请号：US11927681
申请日：2007-10-30
申请人： Anand Srinivasan , Namit Jain , Parul Jain , Shailendra Mishra
发明人： Anand Srinivasan , Namit Jain , Parul Jain , Shailendra Mishra
IPC分类号： G06F17/30
CPC分类号： G06F17/30964
摘要： Facilitating flexible windows in querying continuous data streams. In one embodiment, a software code is associated with a window, wherein execution of the software code determines the values to be included in the window. On receiving a query indicating the window, the result of the query is generated based on the values in the window determined by execution of the software code. The software code may be identified by an identifier and thus used for different queries on the same or different continuous data streams.
摘要翻译：方便灵活的窗口查询连续的数据流。在一个实施例中，软件代码与窗口相关联，其中软件代码的执行确定要包括在窗口中的值。在接收到指示窗口的查询时，基于通过执行软件代码确定的窗口中的值来生成查询结果。软件代码可以由标识符标识，并且因此用于相同或不同连续数据流上的不同查询。

5. 发明授权

US07984042B2 System and method for providing highly available database performance 有权
标题翻译：提供高可用数据库性能的系统和方法
公开(公告)号：US07984042B2
公开(公告)日：2011-07-19
申请号：US11088340
申请日：2005-03-23
申请人： Carol L. Colrain , Namit Jain , Juan R. Loaiza
发明人： Carol L. Colrain , Namit Jain , Juan R. Loaiza
IPC分类号： G06F7/00
CPC分类号： G06F17/3048 , G06F17/30433 , Y10S707/99934 , Y10S707/99953
摘要： A system and method for enabling a second database instance to more quickly process a request to execute a database statement that has previously been executed by a first database instance is described. In one embodiment, the method involves sending the database statement from the first database instance to the second database instance, and generating by the second database instance one or more structures needed to prepare the statement for execution, such as a parse tree and an execution plan for the statement. If at some point in the future, the second database instance receives a request to execute the same statement, the above structures can be used for execution, thereby eliminating the need for one or more potentially time-consuming operations, such as generation of a parse tree or execution plan for the statement.
摘要翻译：描述了使得第二数据库实例能够更快速地处理执行先前由第一数据库实例执行的数据库语句的请求的系统和方法。在一个实施例中，该方法涉及将数据库语句从第一数据库实例发送到第二数据库实例，并且由第二数据库实例生成准备执行语句所需的一个或多个结构，诸如解析树和执行计划为声明。如果在将来的某个时刻，第二个数据库实例接收到执行相同语句的请求，上述结构可以用于执行，从而不需要一个或多个潜在的耗时的操作，比如生成解析树或执行计划。

6. 发明授权

US07933928B2 Method and mechanism for loading XML documents into memory 有权
标题翻译：将XML文档加载到内存中的方法和机制
公开(公告)号：US07933928B2
公开(公告)日：2011-04-26
申请号：US11317101
申请日：2005-12-22
申请人： Sivasankaran Chandrasekar , Nipun Agarwal , Namit Jain , Ravi Murthy
发明人： Sivasankaran Chandrasekar , Nipun Agarwal , Namit Jain , Ravi Murthy
IPC分类号： G06F7/00 , G06F17/30 , G06F12/00
CPC分类号： G06F17/2247 , G06F17/30908
摘要： A method and apparatus for loading an XML document into memory is provided. A client loads one or more array elements into a first partition of an array that is maintained in memory. Each array element represents an XML element of an XML document. Upon determining that an amount of data maintained in the first partition exceeds a first threshold, the client subsequently loads array elements into a new partition of the array. Upon determining that an amount of data maintained in the memory of the client exceeds a second threshold, the array elements of the least recently used partition are persistently stored in a database without persistently storing the entire XML document. When the last XML element of the XML document is loaded into a partition of the array, that partition is persistently stored in the database, thereby causing the entire XML document to be stored in the database.
摘要翻译：提供了一种将XML文档加载到存储器中的方法和装置。客户端将一个或多个数组元素加载到内存中维护的数组的第一个分区中。每个数组元素表示XML文档的XML元素。在确定在第一分区中维护的数据量超过第一阈值时，客户端随后将数组元素加载到阵列的新分区中。在确定在客户端的存储器中维护的数据量超过第二阈值时，最近最少使用的分区的数组元素被持久地存储在数据库中，而不会持续存储整个XML文档。当XML文档的最后一个XML元素加载到数组的分区中时，该分区将永久存储在数据库中，从而使整个XML文档存储在数据库中。

7. 发明授权

US07716260B2 Techniques for transaction semantics for a database server performing file operations 有权
标题翻译：用于执行文件操作的数据库服务器的事务语义的技术
公开(公告)号：US07716260B2
公开(公告)日：2010-05-11
申请号：US11013889
申请日：2004-12-16
申请人： Syam Pannala , Namit Jain , Sam Idicula , Nipun Agarwal , Eric Sedlar
发明人： Syam Pannala , Namit Jain , Sam Idicula , Nipun Agarwal , Eric Sedlar
IPC分类号： G06F17/30
CPC分类号： G06F9/526 , G06F9/466 , G06F17/30353 , G06F17/30377 , G06F2201/80 , G06F2209/523
摘要： A method and apparatus for reverting a resource to a prior state in time is provided. Changes are committed to a resource at a particular point in time. After the particular point in time, a request, which may be a file system operation request, to revert the resource to a state prior to the particular point in time is received at a database server. In response to the request, the resource is reverted to the state prior to the particular point in time. The current state of the resource ceases to reflect the plurality of changes. Advantageously, if a requestor creates an incorrect version of a resource, the changes made to a schema-based resource are not compatible with the schema, or the changes of multiple requesters are not compatible with each other, the resource may be reverted to the earlier point in time.
摘要翻译：提供了一种用于将资源恢复到先前状态的方法和装置。更改在特定时间点致力于资源。在特定时间点之后，在数据库服务器处接收到可能是文件系统操作请求的将资源恢复到特定时间点之前的状态的请求。响应于该请求，资源被恢复到特定时间点之前的状态。资源的当前状态不再反映多种变化。有利的是，如果请求者创建资源的不正确版本，对基于模式的资源所做的更改与模式不兼容，或者多个请求者的更改彼此不兼容，则该资源可能还原到较早时间点。

8. 发明申请

US20100057735A1 FRAMEWORK FOR SUPPORTING REGULAR EXPRESSION-BASED PATTERN MATCHING IN DATA STREAMS 有权
标题翻译：支持数据流中基于正则表达式的模式匹配的框架
公开(公告)号：US20100057735A1
公开(公告)日：2010-03-04
申请号：US12548187
申请日：2009-08-26
申请人： Anand Srinivasan , Rakesh Komuravelli , Namit Jain , Shailendra Mishra
发明人： Anand Srinivasan , Rakesh Komuravelli , Namit Jain , Shailendra Mishra
IPC分类号： G06F7/06 , G06F17/30
CPC分类号： G06K9/62
摘要： Techniques for detecting patterns in one or more data or event streams. A pattern to be detected may be specified using a regular expression. Events received in a data stream are processed during runtime to detect occurrences of the specified pattern in the data stream. In one embodiment, a pattern type or class is determined for the specified pattern and pattern matching is performed using a technique selected based upon the type or class determined for the specified pattern.
摘要翻译：用于检测一个或多个数据或事件流中的模式的技术。可以使用正则表达式来指定要检测的模式。在运行期间处理在数据流中接收的事件，以检测数据流中指定模式的出现。在一个实施例中，对于指定的图案确定图案类型或类别，并且使用基于为指定图案确定的类型或类别而选择的技术来执行图案匹配。

9. 发明申请

US20100057663A1 TECHNIQUES FOR MATCHING A CERTAIN CLASS OF REGULAR EXPRESSION-BASED PATTERNS IN DATA STREAMS 有权
标题翻译：匹配数据流中某些基于正则表达式的模式的技术
公开(公告)号：US20100057663A1
公开(公告)日：2010-03-04
申请号：US12548209
申请日：2009-08-26
申请人： Anand Srinivasan , Rakesh Komuravelli , Namit Jain , Shailendra Mishra
发明人： Anand Srinivasan , Rakesh Komuravelli , Namit Jain , Shailendra Mishra
IPC分类号： G06N7/00 , G06N5/02
CPC分类号： G06K9/62
摘要： Techniques for detecting patterns in data streams. A pattern to be detected may be specified using a regular expression. Events received in data streams are then processed during runtime to detect occurrences of the pattern specified by the regular expression in the data stream. If the pattern to be matched belongs to a certain predetermined class of patterns, then a pattern matching technique that is customized for that class of patterns is used during the runtime events processing.
摘要翻译：用于检测数据流中的模式的技术。可以使用正则表达式来指定要检测的模式。然后在运行时处理在数据流中收到的事件，以检测数据流中正则表达式指定的模式的出现。如果要匹配的模式属于某种预定类型的模式，则在运行时事件处理期间使用针对该类模式定制的模式匹配技术。

10. 发明申请

US20090106218A1 Support for user defined aggregations in a data stream management system 有权
标题翻译：支持数据流管理系统中用户定义的聚合
公开(公告)号：US20090106218A1
公开(公告)日：2009-04-23
申请号：US11977439
申请日：2007-10-20
申请人： Anand Srinivasan , Namit Jain , Shailendra Kumar Mishra
发明人： Anand Srinivasan , Namit Jain , Shailendra Kumar Mishra
IPC分类号： G06F17/30
CPC分类号： G06F17/30489 , G06F17/30516
摘要： A computer is programmed to accept a command to create a new aggregation defined by a user during execution of continuous queries on streams of data. The computer is further programmed to thereafter accept and process new continuous queries using the new aggregation, in a manner similar to built-in aggregations. The user typically writes a set of instructions to perform the new aggregation, and identifies in the command, a location of the set of instructions. In response to such a command, the computer creates metadata identifying the new aggregation. The metadata is used to instantiate one aggregation for each group of data in a current window, grouped by an attribute identified in a new query.
摘要翻译：计算机被编程为接受命令以在对数据流的连续查询执行期间创建由用户定义的新聚合。该计算机被进一步编程为此后以类似于内置聚合的方式接受和处理使用新聚合的新的连续查询。用户通常写一组指令来执行新的聚合，并且在命令中标识该组指令的位置。响应于这样的命令，计算机创建标识新聚合的元数据。元数据用于为当前窗口中的每组数据实例化一个聚合，按照新查询中标识的属性进行分组。

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