SQL查询需要获取count(id)= 2的名称

Question

我有一张桌子programparticipants.我目前成功查询ID在哪里count(name) > 1.我现在需要的是查询属于那些ID的名称count(name) > 1.

例如,当前返回的数据结果:

ID     count(name)
1      2
3      4
4      3

例如,需要的数据结果:

ID     name
1      nm1
1      nm3
3      nm2
3      nm3
3      nm4
3      nm7
4      nm5
4      nm8
4      nm9

Answer 1

select count(id), name 
from programparticipants 
group by name 
having count(id) > 1

Answer 2

你可以用这个:

SELECT 
   (SELECT name FROM participants WHERE id=p.participantid) AS name
FROM
   programparticipants AS p
WHERE
   .... (the part where you find count(name)>1)