从oracle的列的值集中减去一些常数值

Question

有一个像id- name-roll这样的表我有一些恒定的给定值roll like-（1,2,6,8,5）的集合让它被设置一个表有roll like（1,2,3,4 ，5,6,7）设为集合B我想知道AB表示那些不在表中但存在于给定常量集合A中的roll值

我尝试从“表名”中选择卷，而不是卷（1,2,6,8,5）; 但它返回正好相反-它返回BA，但我要AB请帮助我也尝试过

从双减中选择（1,2,6,8,5）从表名中选择滚动； 但是它会产生一些同步错误

Answer 1

这是你想要的吗？

select a.*
from (select 1 as id from dual union all
      select 2 as id from dual union all
      select 6 as id from dual union all
      select 8 as id from dual union all
      select 5 as id from dual
     ) a
where not exists (select 1 from b where a.id = b.id);

Answer 2

(select 1 as id from dual
         union all
select 2 from dual
         union all
select 6 from dual
         union all
select 8 from dual
         union all
select 5 from dual
         )
minus
Select id from b