试题详情
- 单项选择题 In your datawarehousing application， you generate reports frequently. The data is static in the tables being used to generate reports. You are currently using joins， resulting in a large performance overhead. What kind of database structure would you use to reduce the response time of the query？（）
A、hash clusters
B、index clusters
C、partitioned tables
D、index-organized table （IOT）
- B
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