Question

我想编写一个select语句，它将返回10行，其列值大于输入整数，10行的列值小于输入整数。

Answer 1

SELECT * FROM [table] WHERE Column > 100 FETCH FIRST 10 ROWS ONLY
UNION ALL
SELECT * FROM [table] WHERE Column < 100 FETCH FIRST 10 ROWS ONLY

Answer 2

如果你愿意，这是另一种解决方案：

select t.*
from (select t.*,
             row_number() over (partition by (case when col < target_val then 'lower' else 'higher' end),
                                order by abs(target_val - col)
                               ) as seqnum
      from table t
     ) t
where seqnum <= 10;

在db2中选择10大于10且小于10的整数值。

2 个答案: