统计统计值
双语例句原声例句
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虽然这个访问计划比使用具体值但没有分布统计信息情况下的访问计划好，但不如既使用具体值又有分布统计信息时的访问计划。
Although the access plan is better than the access plan with concrete values without distribution statistics, it is worse than the access plan with concrete values with distribution statistics.
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然后它用它的双亲请求，根据连接的描述找到正确的数据库统计值，并根据sql键字符串找到语句统计值。
It then USES its parent request to find the right database statistics based on the connection's description, and to find statement statistics based on the SQL key string.
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数据库的统计值持有有关连接次数的信息，并聚合每个单独语句的额外统计值。
The database statistics hold information about connection times and aggregate additional statistics for each individual statement.
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To some degree, it's harder to imagine the worst thing than to statistically sort of figure out the middle band.
一定程度上，预测最坏的结果,要比以统计的方式预测出中间值更为艰难。
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