Question

我在SQL Server 2012中有一个表，我想找到从同一IP登录的用户，例如，在我的表中

Id   UserName    IpAddress
--------------------------------
1    test        192.168.0.1
2    test1       192.168.0.5
3    test3       192.168.0.1
4    test4       192.168.0.5
5    test        192.168.0.15
6    test5       192.168.0.25
7    test        192.168.0.1
8    test        192.168.0.1
9    test        192.168.0.1
10   test3       192.168.0.1
11   test3       192.168.0.1
12   test        192.168.0.1
...  ....        ...........

在我的查询中

SELECT Id, UserName, IpAddress
FROM (
  SELECT Id, UserName, IpAddress,
         COUNT(IpAddress) OVER (PARTITION BY IpAddress) AS cnt
  FROM UserLogin) AS t
WHERE t.cnt > 1

我得到了结果

1   test    192.168.0.1            
2   test    192.168.0.1            
3   test    192.168.0.1            
4   test    192.168.0.1            
5   test    192.168.0.1           
6   test3   192.168.0.1           
7   test3   192.168.0.1            
8   test3   192.168.0.1            
9   test    192.168.0.1           
..  ....     ...

我想得到这个结果

1   test    192.168.0.1    -- user test and user test 3 use one ip        
2   test3   192.168.0.1    -- user test and user test 3 use one ip    
3   test1   192.168.0.5    -- user test1 and user test 4 use one ip
4   test4   192.168.0.5    -- user test1 and user test 4 use one ip
..  ....     ...

我想获得使用相同IP的玩家

我怎么做？

谢谢

Answer 1

您希望拥有多个用户的IP。这是一种方法：

SELECT UserName, IpAddress
FROM (SELECT UserName, IpAddress,
             COUNT(*) OVER (PARTITION BY IpAddress) as cnt
      FROM UserLogin
      GROUP BY UserName, IpAddress
     ) ui
WHERE cnt > 1
ORDER BY IpAddress;

查找使用相同IP的用户

1 个答案: