发明名称 |
Index tuner for given workload |
摘要 |
An index tuning wizard produces a fast and reasonable recommendation identifying database indexes to use given a specified workload. A query optimizer is used to determine the expected usefulness of potential indexes for the specified workload by taking cost of queries in the workload into account. A cost based pruning of indexes is then performed to provide an intermediate set of proposed indexes. Indexes having most benefit based on storage constraints are then selected. The optimizer is then used again, and further pruning is done on a benefits basis. An index is not recommended unless it has a significant impact on the workload.
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申请公布号 |
US6266658(B1) |
申请公布日期 |
2001.07.24 |
申请号 |
US20000553070 |
申请日期 |
2000.04.20 |
申请人 |
MICROSOFT CORPORATION |
发明人 |
ADYA ATUL;AGRAWAL SANJAY;CHAUDHURI SURAJIT;NARASAYYA VIVEK R. |
分类号 |
G06F17/30;(IPC1-7):G06F17/30 |
主分类号 |
G06F17/30 |
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