发明名称 |
Subscription and notification with database technology |
摘要 |
The present invention teaches in general how to efficiently exploit active database technology and extensible database technology, i.e. triggers and user-defined functions for processing subscriptions. According to a first aspect of the present invention it is proposed to aggregate all subscriptions on a certain table, or more generally of a plurality of tables, into a single trigger on this table or tables, respectively. This will dramatically improve the trigger-based efficiency. According to a second aspect of the present invention it is proposed to deliver the information a subscriber has registered for directly out of the database systems address space via appropriate user defined functions which is another source of efficiency improvement.
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申请公布号 |
US6826560(B1) |
申请公布日期 |
2004.11.30 |
申请号 |
US20000608737 |
申请日期 |
2000.06.30 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
LEYMANN FRANK;ROLLER DIETER |
分类号 |
G06Q50/00;G06F7/10;G06F17/30;G06Q30/00;(IPC1-7):G06F17/30 |
主分类号 |
G06Q50/00 |
代理机构 |
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地址 |
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