发明名称 |
Method and apparatus for optimizing computation of OLAP ranking functions |
摘要 |
Techniques are described for optimizing the computation of OLAP ranking functions. The techniques involve push-down of the filtering operation into the window sort operation corresponding to a target ranking function. The push-down technique may be employed when a predetermined set of push-down conditions are met.
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申请公布号 |
US6622138(B1) |
申请公布日期 |
2003.09.16 |
申请号 |
US20000656304 |
申请日期 |
2000.09.06 |
申请人 |
ORACLE INTERNATIONAL CORPORATION |
发明人 |
BELLAMKONDA SRIKANTH;GHOSH BHASKAR;WITKOWSKI ANDREW |
分类号 |
G06F17/30;(IPC1-7):G06F17/30 |
主分类号 |
G06F17/30 |
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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