发明名称 |
Method and apparatus for distributed control of a database |
摘要 |
A distributed database-management system is disclosed in which multiple clients on a network share control over and responsibility for the coherency of a shared database with multiple records. The clients arbitrate between each other for exclusive editing access to each of the fields within each record. The database-management system includes lock fields associated with each field in the multiple records. Each client executes a resident coherency process which is responsive to a request to edit a field. The process grants the request if there is not a field lock on the field. When the request is granted the coherency process asserts exclusive ownership of the field by placing a lock on the field. The coherency process is also responsive to a request to exit editing the field and in response thereto de-asserts exclusive ownership of the field.
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申请公布号 |
US6009427(A) |
申请公布日期 |
1999.12.28 |
申请号 |
US19970904828 |
申请日期 |
1997.08.01 |
申请人 |
HEWLETT PACKARD COMPANY |
发明人 |
WOLFF, JAMES J. |
分类号 |
G06F12/00;G06F9/46;G06F15/16;G06F15/173;G06F17/30;(IPC1-7):G06F17/30 |
主分类号 |
G06F12/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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