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21. 发明申请

US20050228823A1 Method, system, and program for implementing scrollable cursors in a distributed database system 有权
标题翻译：在分布式数据库系统中实现可滚动游标的方法，系统和程序
公开(公告)号：US20050228823A1
公开(公告)日：2005-10-13
申请号：US11146516
申请日：2005-06-06
申请人： Curt Cotner , Margaret Dong
发明人： Curt Cotner , Margaret Dong
IPC分类号： G06F7/00 , G06F17/00 , G06F17/30
CPC分类号： G06F17/30595 , Y10S707/99931
摘要： Provided is a method, system, and program for accessing data in a distributed database environment. A client program receives multiple requests for data from a database object satisfying specified search predicates from an application program. Each request includes a request for at least one row from the table. The client program transfers a database command and a rowset parameter indicating a maximum number of rows to return to a server program over a network if the requested row is not maintained by the client program. A data block is generated with the server program including rows from the database object satisfying the search predicates in response to the database command. The rows included in the data block do not exceed the rowset parameter. The server program transfers the data block to the client program. In turn, the client program returns at least one requested row from the received data block in response to one request for the at least one row of data from the application program.
摘要翻译：提供了一种用于访问分布式数据库环境中的数据的方法，系统和程序。客户程序从满足来自应用程序的指定搜索谓词的数据库对象接收对数据的多个请求。每个请求包括从表中至少一行的请求。如果客户端程序没有维护所请求的行，则客户机程序传送数据库命令和行集参数，指示最大行数返回到网络上的服务器程序。生成数据块，服务器程序包括响应数据库命令满足搜索谓词的数据库对象的行。包含在数据块中的行不超过行集参数。服务器程序将数据块传输到客户端程序。反过来，响应于来自应用程序的至少一行数据的一个请求，客户端程序从接收的数据块返回至少一个所请求的行。

22. 发明申请

US20050144299A1 System and method for supporting XA 2-phase commit protocols with a loosely coupled clustered database server 审中-公开
标题翻译：用松散耦合的集群数据库服务器支持XA两阶段提交协议的系统和方法
公开(公告)号：US20050144299A1
公开(公告)日：2005-06-30
申请号：US10726702
申请日：2003-12-04
申请人： Delmar Blevins , Curt Cotner , Stephen Kinder , James Pickel , Matthew Sykes , Hong Tie
发明人： Delmar Blevins , Curt Cotner , Stephen Kinder , James Pickel , Matthew Sykes , Hong Tie
IPC分类号： G06F15/16 , G06F17/30
CPC分类号： G06F16/2455 , G06F16/284
摘要： Indoubt transaction entries are recorded for each member of a database cluster, thereby avoiding the CPU cost and elapsed-time impact of persisting this information to a disk (either via a log write or a relational table I/O). This implementation allows for full read/write access and data coherency for concurrent access by all the members in the database cluster. At any given point in time, a full list of indoubt transactions is maintained for the entire database cluster in a relational table (e.g., an SQL table).
摘要翻译：为数据库集群的每个成员记录不确定的事务条目，从而避免将该信息持久存储在磁盘上（通过日志写入或关系表I / O）的CPU成本和经过时间的影响。此实现允许完全读/写访问和数据一致性，以便数据库集群中的所有成员进行并发访问。在任何给定的时间点，关系表（例如，SQL表）中的整个数据库集群都会维护完整的不确定事务清单。

23. 发明申请

US20050144276A1 Method, system and mechanism to multiplex multiple application server requests over a single database connection 有权
标题翻译：通过单个数据库连接复用多个应用程序服务器请求的方法，系统和机制
公开(公告)号：US20050144276A1
公开(公告)日：2005-06-30
申请号：US10729636
申请日：2003-12-04
申请人： Paul Bird , William Bireley , Curt Cotner , Tammie Dang , Margaret Dong , Georgia Fuller , Michelle Lam , James Pickel , Frankie Sun
发明人： Paul Bird , William Bireley , Curt Cotner , Tammie Dang , Margaret Dong , Georgia Fuller , Michelle Lam , James Pickel , Frankie Sun
IPC分类号： G06F15/16 , G06F15/173 , G06F17/30
CPC分类号： G06F17/3056 , G06F17/30348 , G06F17/30445 , Y10S707/99953
摘要： In a method and system for avoiding section collision for application server requests over a single database connection, the database server assigns query identifiers to each instance of the same cursor opened for the same processing level within an application, allowing multiple instances of the same cursor to be processed in parallel without section collision. The application server assigns a command source identifier to each statement sent over a single database connection to uniquely identify the application source of the statement. This applies for multiples of the same statement sent by different application sources within the same application, for a single statement containing multiple application sources, and for multiple statements from different applications multiplexed over a single database connection. These statements can be processed separately from and in parallel with the each other without section collision.
摘要翻译：在用于通过单个数据库连接避免应用程序服务器请求的部分冲突的方法和系统中，数据库服务器为应用程序内为相同处理级别打开的同一个游标的每个实例分配查询标识符，允许同一光标的多个实例并行处理，无分段碰撞。应用程序服务器为通过单个数据库连接发送的每个语句分配命令源标识符，以唯一标识语句的应用程序源。这适用于同一应用程序中由不同应用程序源发送的相同语句的倍数，对于包含多个应用程序源的单个语句，以及来自通过单个数据库连接复用的不同应用程序的多个语句。这些语句可以彼此分开处理，也可以彼此并行处理，而不会出现部分冲突。

24. 发明申请

US20050125410A1 Package resolution mechanism for database systems 有权
标题翻译：数据库系统的包解析机制
公开(公告)号：US20050125410A1
公开(公告)日：2005-06-09
申请号：US10730192
申请日：2003-12-04
申请人： Curt Cotner , Tammie Dang , Brian Howell , Fung Lee , Hui-An Lee , Charles Lin , Claire McFeely , Jennifer Ou , James Pickel , Jay Yothers
发明人： Curt Cotner , Tammie Dang , Brian Howell , Fung Lee , Hui-An Lee , Charles Lin , Claire McFeely , Jennifer Ou , James Pickel , Jay Yothers
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： G06F17/30595
摘要： A method and system for providing package resolution in a database system is disclosed. The method and system comprise providing a statement within a server which allows an application to identify a list of package collections. The method and system further includes executing the statement to obtain the appropriate package. A system and method in accordance with the present invention provides a new current package path value, which is set via a statement referred to as Set Current Package Path. The SET CURRENT PACKAGE PATH statement allows the application to supply a precedence list of qualified package collections during execution time, therefore the scheme for resolving packages can be changed at any point during execution. The SET CURRENT PACKAGE PATH statement improves application development by making the package resolution mechanism less error prone and less tedious for the application developer, while providing an optimal-performance solution in the client-server environment.
摘要翻译：公开了一种在数据库系统中提供打包分辨率的方法和系统。方法和系统包括在服务器内提供允许应用程序识别包集合列表的语句。该方法和系统还包括执行该语句以获得适当的包。根据本发明的系统和方法提供新的当前包路径值，其通过称为设置当前包路径的语句来设置。 SET CURRENT PACKAGE PATH语句允许应用程序在执行时间内提供合格的包集合的优先列表，因此可以在执行期间的任何时候更改解决包的方案。 SET CURRENT PACKAGE PATH语句通过使程序包解析机制对于应用程序开发人员而言更不容易出错，更乏味，同时在客户端 - 服务器环境中提供最佳性能解决方案，从而改进了应用程序开发。

25. 发明申请

US20050108255A1 Systems, methods, and computer program products to integrate user-defined operations into a database transaction 失效
标题翻译：将用户定义的操作集成到数据库事务中的系统，方法和计算机程序产品
公开(公告)号：US20050108255A1
公开(公告)日：2005-05-19
申请号：US10717407
申请日：2003-11-18
申请人： Vander Alves , Curt Cotner , Mary Roth , Morgan Tong , Charles Wolfson
发明人： Vander Alves , Curt Cotner , Mary Roth , Morgan Tong , Charles Wolfson
IPC分类号： G06F9/46 , G06F17/00
CPC分类号： G06F9/466 , Y10S707/99933 , Y10S707/99952 , Y10S707/99953
摘要： Systems, methods, and computer products that support techniques associated with highly reliable transaction protocol semantics in databases. Such techniques extend database transaction semantics that support a single-phase or a two-phase commit protocol to include user-defined operations while supporting the XA X/Open® Distributed Transaction Processing Protocol (“XA Transaction Protocol”). The preferred embodiment of the present invention novelly enables user-defined operations that access external resources by means of the XA Transaction Protocol to be included in database transaction processing features. Thereby user-level access to well-defined APIs is provided. Further, the preferred embodiment of the present invention novelly ensures atomicity for the results of the database transaction that includes both the user-defined operations and database operations. According to the preferred embodiment of the present invention the database acts, in part, as an XA transaction manager.
摘要翻译：支持与数据库中高度可靠的事务协议语义相关联的技术的系统，方法和计算机产品。这种技术扩展了支持单阶段或两阶段提交协议的数据库事务语义，以包括用户定义的操作，同时支持XA X / Open（R）分布式事务处理协议（“XA事务处理协议”）。本发明的优选实施例新颖地使得能够通过XA事务协议访问外部资源的用户定义的操作被包括在数据库事务处理特征中。从而提供对定义良好的API的用户级访问。此外，本发明的优选实施例新颖地确保包括用户定义的操作和数据库操作的数据库事务的结果的原子性。根据本发明的优选实施例，数据库部分地作为XA事务管理器。

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