专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明申请

US20080222176A1 STREAMING XPATH ALGORITHM FOR XPATH EXPRESSIONS WITH PREDICATES 审中-公开
标题翻译：用XPATH表达式预测XPATH算法
公开(公告)号：US20080222176A1
公开(公告)日：2008-09-11
申请号：US12122963
申请日：2008-05-19
申请人： Mengchu CAI , Jason Alexander Cu , Fen-Ling Lin , Guogen Zhang , Qinghua Zou
发明人： Mengchu CAI , Jason Alexander Cu , Fen-Ling Lin , Guogen Zhang , Qinghua Zou
IPC分类号： G06F17/30
CPC分类号： G06F16/8373
摘要： A method and system for evaluating a path query are disclosed. The path query corresponds to a query tree including a plurality of query nodes. At least one query node corresponds to at least one predicate and is at a level. The predicate(s) are evaluated for previous query node(s). The method and system include scanning data nodes of a document and determining if the data nodes match the query nodes. The method and system also include placing data related to the data node in match stacks corresponding to matched query nodes. The data for the query node(s) include attribute(s) corresponding to the predicate(s). The method and system further include propagating a matching of the at least one query node backward to a matching of the at least one previous query node.
摘要翻译：公开了一种用于评估路径查询的方法和系统。路径查询对应于包括多个查询节点的查询树。至少一个查询节点对应于至少一个谓词并处于一个级别。对先前的查询节点评估谓词。该方法和系统包括扫描文档的数据节点并确定数据节点是否匹配查询节点。该方法和系统还包括将与数据节点相关的数据放置在与匹配查询节点相对应的匹配堆栈中。查询节点的数据包括对应于谓词的属性。所述方法和系统还包括将所述至少一个查询节点的匹配向后传播到所述至少一个先前查询节点的匹配。

42. 发明授权

US07146360B2 Method and system for improving response time for database query execution 有权
标题翻译：改进数据库查询执行响应时间的方法和系统
公开(公告)号：US07146360B2
公开(公告)日：2006-12-05
申请号：US10323257
申请日：2002-12-18
申请人： Terry Dennis Allen , Hsiuying Cheng , Fen-Ling Lin , Akira Shibamiya , Annie S. Tsang
发明人： Terry Dennis Allen , Hsiuying Cheng , Fen-Ling Lin , Akira Shibamiya , Annie S. Tsang
IPC分类号： G06F17/30 , G06F7/00
CPC分类号： G06F17/30445 , G06F17/30486 , Y10S707/99933 , Y10S707/99935
摘要： Aspects for improving response time for database query execution are described. The aspects include comparing an estimate of sort pages needed for a database query against at least one threshold. A determination of whether to perform a parallel sort for the database query based on the comparison occurs, wherein response time improvement by the parallel sort is balanced against resource overhead of the parallel sort.
摘要翻译：描述了改进数据库查询执行响应时间的方面。这些方面包括将数据库查询所需的排序页面的估计与至少一个阈值进行比较。基于比较来确定是否对数据库查询执行并行排序，其中通过并行排序的响应时间改进与并行排序的资源开销相平衡。

43. 发明申请

US20050177543A1 Efficient XML schema validation of XML fragments using annotated automaton encoding 失效
标题翻译：使用注释自动机编码的XML片段的高效XML模式验证
公开(公告)号：US20050177543A1
公开(公告)日：2005-08-11
申请号：US10774594
申请日：2004-02-10
申请人： Yao-Ching Chen , Fen-Ling Lin , Ning Wang , Guogen Zhang
发明人： Yao-Ching Chen , Fen-Ling Lin , Ning Wang , Guogen Zhang
IPC分类号： G06F7/00 , G06F17/22 , G06F17/27
CPC分类号： G06F17/2725 , G06F17/2229 , G06F17/2247 , Y10S707/99942 , Y10S707/99943
摘要： A method and system for Extensible Markup Language (XML) schema validation, includes: loading an XML document into a runtime validation engine, where the runtime validation engine includes an XML schema validation parser; loading an annotated automaton encoding (AAE) for an XML schema definition into the XML schema validation parser; and validating the XML document against the XML schema definition by the XML schema validation parser utilizing the annotated automaton encoding. Each XML schema definition is compiled once into the AAE format, rather than being compiled each time an XML document is validated, and thus significant time is saved. The code for the runtime validation engine is fixed and does not vary depending on the XML schema definition, rather than varying for each XML schema definition, and thus space overhead is minimized. Flexibility in the validation process is provided without compromising performance.
摘要翻译：可扩展标记语言（XML）模式验证的方法和系统包括：将XML文档加载到运行时验证引擎中，运行时验证引擎包含XML模式验证解析器; 将用于XML模式定义的带注释的自动机编码（AAE）加载到XML模式验证解析器中; 并通过使用带注释的自动机编码的XML模式验证解析器根据XML模式定义验证XML文档。每个XML模式定义都被编译为AAE格式，而不是每次验证XML文档时被编译，因此节省了大量的时间。运行时验证引擎的代码是固定的，并且不会根据XML模式定义而变化，而不是因为每个XML模式定义而变化，因此空间开销最小化。提供验证过程中的灵活性，而不会影响性能。

44. 发明申请

US20050138010A1 Method of returning data during insert statement processing 有权
标题翻译：插入语句处理期间返回数据的方法
公开(公告)号：US20050138010A1
公开(公告)日：2005-06-23
申请号：US10744633
申请日：2003-12-22
申请人： Margaret Bernal , Karelle Cornwell , Hsuiying Cheng , Yao-Ching Chen , Christopher Crone , Fen-Ling Lin , James Pickel , Yumi Tsuji , Julie Watts
发明人： Margaret Bernal , Karelle Cornwell , Hsuiying Cheng , Yao-Ching Chen , Christopher Crone , Fen-Ling Lin , James Pickel , Yumi Tsuji , Julie Watts
IPC分类号： G06F17/30
CPC分类号： G06F17/30595 , G06F17/30463
摘要： A method for generating an execution plan for updating and retrieving data from a database in a single process includes: receiving a statement by a server to update a database with a first set of data and to retrieve a second set of data from the database; building a first execution plan to update the database with the first set of data; building a second execution plan to retrieve the second set of data from the database; and building a single execution plan including a combination of the first and second execution plans. The single execution plan allows for the updating and retrieval of data with a single crossing of an interface between a client and the database. By performing both functions in this manner, the efficiency of performing such tasks on the database is significantly increased.
摘要翻译：一种用于生成用于在单个进程中从数据库更新和检索数据的执行计划的方法包括：由服务器接收用第一组数据更新数据库的语句，并从数据库中检索第二组数据; 构建第一个执行计划，用第一组数据更新数据库; 构建第二个执行计划以从数据库中检索第二组数据; 并构建包括第一和第二执行计划的组合的单个执行计划。单个执行计划允许通过客户端和数据库之间的接口的单个交叉来更新和检索数据。通过以这种方式执行这两个功能，在数据库上执行这样的任务的效率显着增加。

45. 发明授权

US6115703A Two-level caching system for prepared SQL statements in a relational database management system 失效
标题翻译：在关系数据库管理系统中准备好SQL语句的两级缓存系统
公开(公告)号：US6115703A
公开(公告)日：2000-09-05
申请号：US75651
申请日：1998-05-11
申请人： William Robert Bireley , Lisa R. Curran , Fen-Ling Lin , Adrian Brian Lobo , Jerome Quan Wong
发明人： William Robert Bireley , Lisa R. Curran , Fen-Ling Lin , Adrian Brian Lobo , Jerome Quan Wong
IPC分类号： G06F17/30
CPC分类号： G06F17/3048 , Y10S707/917 , Y10S707/99932 , Y10S707/99933
摘要： A method, apparatus, and article of manufacture for a computer implemented two-level caching system. A statement is executed in a computer. The statement is executed by the computer to manipulate data in a database stored on a data storage device connected to the computer. Initially, a first statement is prepared to create an executable structure for executing the first statement from an application. Then, the executable structure is stored in an application-level cache associated with the application. A second statement is received for execution from the application. It is determined that the second statement can be executed using the stored executable structure for the first statement. Next, the second statement is executed using the stored executable structure.
摘要翻译：一种用于计算机实现的两级缓存系统的方法，装置和制品。在计算机中执行语句。该语句由计算机执行以操纵存储在连接到计算机的数据存储设备上的数据库中的数据。最初，准备第一个语句来创建一个从应用程序执行第一个语句的可执行结构。然后，可执行结构存储在与应用程序相关联的应用程序级缓存中。收到第二个声明以从应用程序执行。确定可以使用存储的第一语句的可执行结构来执行第二语句。接下来，使用存储的可执行结构来执行第二语句。

46. 发明授权

US6081799A Executing complex SQL queries using index screening for conjunct or disjunct index operations 失效
标题翻译：使用索引筛选来执行复杂的SQL查询，以进行连续或分离的索引操作
公开(公告)号：US6081799A
公开(公告)日：2000-06-27
申请号：US305552
申请日：1999-05-05
申请人： Thomas Abel Beavin , Peter Hoa , Fen-Ling Lin , Hong Sang Tie
发明人： Thomas Abel Beavin , Peter Hoa , Fen-Ling Lin , Hong Sang Tie
IPC分类号： G06F17/30
CPC分类号： G06F17/30321 , G06F17/30492 , Y10S707/99932 , Y10S707/99933
摘要： A method, apparatus, and article of manufacture for an index screening system. A query is executed to access data stored on a data storage device connected to a computer. In particular, while accessing one or more indexes to retrieve row identifiers, index matching predicates in the query are applied to select row identifiers and index screening predicates in the query are applied to eliminate one or more selected row identifiers.
摘要翻译：索引筛选系统的方法，装置和制品。执行查询以访问存储在连接到计算机的数据存储设备上的数据。特别地，在访问一个或多个索引以检索行标识符的同时，将查询中的索引匹配谓词应用于选择行标识符，并且应用查询中的索引筛选谓词以消除一个或多个所选择的行标识符。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式