sampling statistics 样本统计量 ; 抽样统计 ; 又称抽样统计 ; 样本计数量
resource sampling statistics 资源抽样统计
Edge Sampling Statistics Based descriptors 基于边缘抽样统计的描述子
The population sampling survey, conducted by Shanghai Municipal Statistics Bureau, reveals a rapid rise in the size of the unmarried population, especially women.
上海市统计局开展的一项人口抽样调查显示，上海未婚人口数量正在迅速上升，尤其是未婚女性数量。
The third command samples 15% of all rows, does not collect distribution statistics, and also applies sampling to indexes which the first and second commands didn't.
第三个命令抽取 15% 的行，但是不收集分布统计信息，并对索引也应用了抽样，这不同于第一个命令和第二个命令。
But, row level sampling may produce more accurate statistics if relational data values are highly clustered.
但是，如果关系数据值是高度聚集的，那么行级抽样可以产生更精确的统计信息。
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