Question

我很难让我的查询做我想做的事情......

如果我为一个UserId：2140173运行它似乎工作正常

Select UserId, 
(Select Count(VoteTypeId) From SuggestedEditVotes where UserId = 2140173) as 'Total',
(Select Count(VoteTypeId) From SuggestedEditVotes where UserId = 2140173 and VoteTypeId = 2) As 'Accepted',
(Select Count(VoteTypeId) From SuggestedEditVotes where UserId = 2140173 and VoteTypeId = 3) As 'Rejected'

from SuggestedEditVotes

    inner join Users on SuggestedEditVotes.UserId = Users.Id

where Users.Reputation > 2000 and UserId = 2140173

group by UserId

having Count(VoteTypeId) > 0

它返回

UserId    Total    Accepted    Rejected
2140173    2230        1145        1085

但是当我尝试稍微修改它并为超过2000声望的所有用户运行它时，它并没有给我正确的结果：/

我坚持使用子Select语句，因为我不确定将什么放在他们的where子句中。

这是我尝试的但它返回总数，我希望它是每个用户ID的计数

Select UserId, 
(Select Count(VoteTypeId) From SuggestedEditVotes) as 'Total',
(Select Count(VoteTypeId) From SuggestedEditVotes where VoteTypeId = 2) As 'Accepted',
(Select Count(VoteTypeId) From SuggestedEditVotes where VoteTypeId = 3) As 'Rejected'

from SuggestedEditVotes

    inner join Users on SuggestedEditVotes.UserId = Users.Id

where Users.Reputation > 2000

group by UserId

having Count(VoteTypeId) > 0

有人可以帮忙吗？

注意：https://data.stackexchange.com/stackoverflow/query/new

Answer 1

试试这个：

SELECT UserId,
 COUNT(VoteTypeId) AS 'Total',
 COUNT(
 CASE
   WHEN VoteTypeId = 2
   THEN VoteTypeId
   ELSE NULL
 END) AS 'Accepted',
 COUNT(
 CASE
   WHEN VoteTypeId = 3
   THEN VoteTypeId
   ELSE NULL
 END) AS 'Rejected'
FROM SuggestedEditVotes
INNER JOIN Users
ON SuggestedEditVotes.UserId = Users.Id
WHERE Users.Reputation       > 2000
GROUP BY UserId
HAVING COUNT(VoteTypeId) > 0

修改查询以使用SEDE处理多个用户

1 个答案: