发明授权
US08161004B2 XML sub-document versioning method in XML databases using record storages
失效
使用记录存储的XML数据库中的XML子文档版本控制方法
- 专利标题： XML sub-document versioning method in XML databases using record storages
- 专利标题（中）： 使用记录存储的XML数据库中的XML子文档版本控制方法
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申请号： US12126712申请日： 2008-05-23
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公开(公告)号： US08161004B2公开(公告)日： 2012-04-17
- 发明人: James Zu-Chia Teng , Guogen Zhang , Qinghua Zou
- 申请人： James Zu-Chia Teng , Guogen Zhang , Qinghua Zou
- 申请人地址： US NY Armonk
- 专利权人： International Business Machines Corporation
- 当前专利权人： International Business Machines Corporation
- 当前专利权人地址： US NY Armonk
- 代理机构： IP Authority, LLC
- 代理商 Ramraj Soundararajan
- 主分类号： G06F17/30
- IPC分类号： G06F17/30
摘要：
A new sub-document versioning method for record storages of XML documents which uses virtual cutting points to ensure that a search tree is able to support multiple versions of sub-documents and provide efficient mechanisms for XML updating. Record boundaries and virtual cut points divide the two-dimensional space, the horizontal axis representing node identifiers in document order and vertical axis representing version numbers, into rectangles. The bottom corner of the rectangle is used to represent the rectangles and the corresponding information of the corner is added to the search tree index.