Question

请使用我的SQL Server查询获得一些帮助。

我有一个SQL Server表，如果Employee_Number列有多个记录，我想获取所有列数据;如果它只有唯一的价值，那么我不想让它显示出来。

从下面的示例中，Employee_Number列的重复值为1111111和3333333。因此它显示了重复值的所有记录，包括所有其余列值。

下面粘贴的数据看起来很分散，所以我也显示为图像（我的数据和预期输出）

SQL Server中的实际数据：

userid  Gecos   B2A_LDAP    AD  Employee_Number B2A_CN  absJobAction    Generic_OR_User Unix_ID Additional_ID_in_Unix   Application_Access
user1   user one    user1   user1   1111111 user one    HIRED   User    user1   NULL    NULL
user2   user two    user2   user2   2222222 user two    HIRED   User    user2   NULL    NULL
user11  user one additional user1   user1   1111111 user one    HIRED   User    user11  NULL    NULL
user3   user three  user3   user3   3333333 user three  HIRED   User    user3   NULL    NULL
user33  user three spare ID 1   user3   user3   3333333 user three  HIRED   User    user33  NULL    NULL
user4   user four   user4   user4   4444444 user four   HIRED   User    user4   NULL    NULL
user333 user three spare ID 3   user3   user3   3333333 user three  HIRED   User    user333 NULL    NULL

我的预期输出应如下所示。

userid  Gecos   B2A_LDAP    AD  Employee_Number B2A_CN  absJobAction    Generic_OR_User Unix_ID Additional_ID_in_Unix   Application_Access
user1   user one    user1   user1   1111111 user one    HIRED   User    user1   NULL    NULL
user11  user one additional user1   user1   1111111 user one    HIRED   User    user11  NULL    NULL
user3   user three  user3   user3   3333333 user three  HIRED   User    user3   NULL    NULL
user33  user three spare ID 1   user3   user3   3333333 user three  HIRED   User    user33  NULL    NULL
user333 user three spare ID 3   user3   user3   3333333 user three  HIRED   User    user333 NULL    NULL

Data in SQL Server table

My expected output

Answer 1

您可以尝试此操作来查找重复Employee_Number

的用户

 SELECT * 
 FROM YourUserTable y
 WHERE Employee_Number IN ( SELECT y1.Employee_Number 
                   FROM YourUserTable y1
                   GROUP BY y1.Employee_Number
                   HAVING count(*) > 1
                   )

Answer 2

尝试此查询，如果userId列在表中是唯一的，它将起作用。

  SELECT *
    FROM UserMst
    WHERE EmployeeNumber IN (   SELECT EmployeeNumber 
                        FROM UserMst
                        GROUP BY EmployeeNumber
                        HAVING COUNT(*) > 1)

Answer 3

select top 10 * 
from Shipping_Bill a
join 
    (select sb_number 
     from Shipping_Bill 
     group by SB_Number  
     having count(*) > 1) b on a.SB_Number = b.SB_Number

请尝试此查询。它会对你有所帮助。

SQL查询只显示基于列值的重复条目，结果应引入所有列值

3 个答案: