Invention Grant
US07991752B2 Managing and coordinating savepoint functionality in a distributed database system
有权
管理和协调分布式数据库系统中的保存点功能
- Patent Title: Managing and coordinating savepoint functionality in a distributed database system
- Patent Title (中): 管理和协调分布式数据库系统中的保存点功能
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Application No.: US11847226Application Date: 2007-08-29
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Publication No.: US07991752B2Publication Date: 2011-08-02
- Inventor: Yuk Kuen Chan , Amy Chang , Yin Ling Cheung
- Applicant: Yuk Kuen Chan , Amy Chang , Yin Ling Cheung
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Konrad Raynes & Victor LLP
- Agent Janaki K. Davada
- Main IPC: G06F17/30
- IPC: G06F17/30

Abstract:
Provided are techniques for savepoint processing. One of a savepoint statement, a rollback to savepoint statement, and a release savepoint statement is received. It is determined whether to propagate the received one of the savepoint statement, the rollback to savepoint statement, and the release savepoint statement to a data source based on an asymmetrical model in which a nested level of savepoints on a federated server side is capable of being greater than a nested level of savepoints on a data source side and wherein a two-tiered data structure is used to preserve savepoint information in the asymmetrical model. In response to determining that propagation is to occur, the one of the savepoint statement, the rollback to savepoint statement, and the release savepoint statement is propagated to the data source.
Public/Granted literature
- US20090063579A1 MANAGING AND COORDINATING SAVEPOINT FUNCTIONALITY IN A DISTRIBUTED DATABASE SYSTEM Public/Granted day:2009-03-05
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