sql - sql命令显示列中重复次数最多的字段

Question

如何在sql中显示列中重复次数最高的字段？

例如，如果一列包含：

杰克
杰克
约翰
约翰
约翰

如何显示上列中的最大重复字段（即）约翰？

Answer 1

select chairman
from mytable
group by chairman
HAVING COUNT(*) = (
select TOP 1 COUNT(*)
from mytable
group by chairman
ORDER BY COUNT(*) DESC)

Answer 2

select name from persons
group by name
having count(*) = (
  select count(*) from persons
  group by name
  order by count(*) desc
  limit 1)