发明名称 |
Fine-grained consistency mechanism for optimistic concurrency control using lock groups |
摘要 |
A method and system for database concurrency control is provided that allows lock groups to contain columns of different tables and allows an individual column of a table to be in more than one lock group. While using optimistic concurrency control for monitoring multiple transactions modifying the same database, it allows the concurrent access of a single table when the individual columns of the table are accessed by separate users or applications. This, in turn, reduces the delay of waiting for a table to be free for access and decreases the delay of rolling back transactions that are concurrently accessing a table. The reduction of these delays increases the overall data processing efficiency for the system.
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申请公布号 |
US6240413(B1) |
申请公布日期 |
2001.05.29 |
申请号 |
US19980106119 |
申请日期 |
1998.06.29 |
申请人 |
SUN MICROSYSTEMS, INC.;BAAN DEVELOPMENT, B.V. |
发明人 |
LEARMONT TIMOTHY R. |
分类号 |
G06F9/44;G06F12/00;G06F17/30;(IPC1-7):G06F17/30 |
主分类号 |
G06F9/44 |
代理机构 |
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地址 |
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