The scientific sampling size and suitable sampling number under different densities on the two pests were consequently determined.
据此,确定了两种害虫的科学抽样方式和不同密度下的合理抽样数量。
In explicit UPDATE STATISTICS operations in MEDIUM mode, a new SAMPLING SIZE option in the resolution clause specifies the minimum number of rows to sample for column distributions.
在使用MEDIUM模式的显式的UPDATE STATISTICS操作中,可以在resolution子句中使用新的SAMPLING SIZE选项为列分布抽样指定最小行数。
In explicit UPDATE STATISTICS operations in MEDIUM mode, a new SAMPLING SIZE option in the Resolution clause can specify the minimum number of rows to sample for column distributions.
在MEDIUM模式的显式的UPDATE STATISTICS操作中,resolution子句中新的SAMPLING SIZE选项可以指定列分布进行抽样的最少行数。
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