Question

我有一个包含数字的表，范围在1-1000之间，它们是唯一的，但是我需要使用Oracle SQL从表中确定1-1000范围内缺少的数字，

1,3,4,5,6,8,9,10

结果2,7

任何人都可以帮助处理脚本的脚本或URL。

Answer 1

您可以使用：

select level from dual
connect by level<=1000
minus
select mycolumn from mytable

编辑：

要找出没有硬编码1000的序列中缺少哪些数字：

select level from dual
connect by level < (select max(mycolumn) from mytable)
minus
select mycolumn from mytable

Answer 2

尝试：

select a.check_number
from (select level check_number from dual connect by level <= 1000) a
where not exists 
(select null from myTable t where a.check_number = t.lookup_number)

Answer 3

with numbers as (
   select level as i
   from dual 
   connect by level <= (select max(some_number) from your_table)
) 
select nr.i as missing
from numbers nr
  left join your_table yt on yt.some_number = nr.i
where  yt.some_number is null;

Oracle SQL，范围在1-1000之间

3 个答案: