发明名称 |
Technique for enforcing temporal uniqueness in an object/relational database management system environment |
摘要 |
A system, method and program extender for enforcing the uniqueness of temporal data in an object/relational database management system is provided. There is a combination of user-defined functions, triggers and specified conditions to determine if attempts to insert new data or update existing data in a data object in which temporal integrity is a consideration are valid. Barriers exist to protect against inserts or updates that would violate the temporal integrity of the existing data. Also included are ways for a user to modify the behavior of the system or method to override triggers for cases in which temporal integrity is not desired.
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申请公布号 |
US6684215(B1) |
申请公布日期 |
2004.01.27 |
申请号 |
US20000597588 |
申请日期 |
2000.06.20 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
SARACCO CYNTHIA MARO |
分类号 |
G06F7/00;G06F17/00;G06F17/30;(IPC1-7):G06F7/00 |
主分类号 |
G06F7/00 |
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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