At a large retailer, adding a missing index to a small, 2,000-row table in an 8 TB warehouse reduced the elapsed time of a critical decision support query from three hours to two minutes.
在一家大型零售商的8TB数据仓库中,在一个2,000行的小表上添加一个索引之后,一个决策支持查询花费的时间从三小时一下降到了两分钟。
At a large retailer, adding a missing index to a small, 2,000-row table in an 8 TB warehouse reduced the elapsed time of a critical decision support query from three hours to two minutes.
在一家大型零售商的8TB数据仓库中,在一个2,000行的小表上添加一个索引之后,一个决策支持查询花费的时间从三小时一下降到了两分钟。
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