发明申请
- 专利标题: System and method for an optimistic database access
- 专利标题(中): 用于乐观数据库访问的系统和方法
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申请号: US10917548申请日: 2004-08-11
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公开(公告)号: US20060036574A1公开(公告)日: 2006-02-16
- 发明人: Rainer Schweigkoffer , Guenther Drach , Tobias Wenner , Frank-Martin Haas , Torsten Ziegler
- 申请人: Rainer Schweigkoffer , Guenther Drach , Tobias Wenner , Frank-Martin Haas , Torsten Ziegler
- 主分类号: G06F17/30
- IPC分类号: G06F17/30
摘要:
In an embodiment, a database interface performs a three-step optimistic database access. The database interface initially performs an optimistic read of a database object. The database object is checked for consistency after the optimistic read. If the database object is inconsistent, a first pessimistic read is performed with an isolation level that does not guarantee consistency (e.g., with an isolation level of committed read). The database object is checked again for consistency after the first pessimistic read. If the database object is inconsistent, a second pessimistic read is performed with an isolation level that may guarantee consistency (e.g., with an isolation level of repeatable read).
公开/授权文献
- US07774319B2 System and method for an optimistic database access 公开/授权日:2010-08-10
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