【单选题】
采用C=0sample plan抽检计算所抽取的样本的大小与以下哪些因素有关:()。
A、AQL大小
B、批量大小
C、检查水平等级
D、不合格品率大小
A、AQL大小
B、批量大小
C、检查水平等级
D、不合格品率大小
A、The optimizer used a dynamic plan for the query. B、The optimizer chose different plans because automatic dynamic sampling was enabled. C、The optimizer used re-optimization cardinality feedback for the query. D、The optimizer chose different plan because extended statistics were created for the columns used.