或许有太多住在曼哈顿的市政分析师甚至不知道垃圾车的时间表。
Perhaps too many municipal analysts living in Manhattan don't even know the timetable for garbage trucks.
索引的确能增强DB 2查询性能,但如果一个表上放置太多索引,那么最终响应时间和流量将走向错误方向。
Indexes can really turbocharge DB2 query performance, but if you put too many on a table, you could end up with response time and throughput going in the wrong direction.
如果表拥有太多区段,那些区段就很可能是交错的。
If tables have too many extents, it is very likely that those extents are interleaved.
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