mysql - SQL用户排名取决于信誉点

Question

如何根据信誉分获得用户排名。
排除“super_admin”和“staff”角色。

我的查询:
当我提出包括所有用户在内的请求时，排名会按预期工作，但是当我提出排除具有“super_admin”和“staff”角色的用户的请求时，排名是错误的。

SELECT u.id, u.rank 
FROM (
      SELECT u.id, @rownum := @rownum +1 AS rank
      FROM users u, (SELECT @rownum :=0 ) r
      ORDER BY u.reputation DESC, u.register_date ASC
     ) AS u
LEFT JOIN users_role ur ON ur.user_id = u.id
LEFT JOIN roles r ON r.id = ur.role_id
WHERE r.key_role NOT IN ('super_admin','staff')
AND u.id=3

表格:

users table

ID    REPUTATION     REGISTERED_DATE
1     6000           2018-05-20 14:15:10
2     20             2018-05-22 14:15:10
3     2000           2018-05-25 14:15:10
4     350            2018-05-27 14:15:10
5     14             2018-05-27 19:15:10
6     0              2018-05-28 14:15:10
7     584            2018-05-29 14:15:10
8     54             2018-05-30 14:15:10


users_roles table

ID    USER_ID        ROLE_ID
1     1              1
2     2              2
3     3              3
4     4              3
5     5              3
6     6              3
7     7              3
8     8              3


roles table

ID    NAME              KEY_ROLE
1     Super Admin       super_admin
2     Staff             staff
3     Registered user   registered_user

Answer 1

这是基于您的代码:

SELECT id, rank FROM (
  SELECT u.id, @rownum := @rownum +1 AS rank 
  FROM (
      SELECT u.id
      FROM users u
      LEFT JOIN users_roles ur ON ur.user_id = u.id
      LEFT JOIN roles r ON r.id = ur.role_id
      WHERE r.key_role NOT IN ('super_admin','staff')
      ORDER BY u.reputation DESC, u.registered_date ASC
     ) AS u
  ,(SELECT @rownum :=0 ) r
) AS t 
WHERE id=3

参见 demo
我在内部查询中包含了所有条件。