Question

please help me to excute this query

 id    FDeviceName  FDeviceType
    1     case           mini
    2     rack           b
    3     amir           d  
    4     rack           a   
    5     case          max 
    6     case         mini

I want this query back

id    FDeviceName  FDeviceType      count
1     case           mini                2
2     rack           b                   1
3     amir           d                   1
4     rack           a                   1
5     case          max                  1

Answer 1

SELECT id, FDeviceName, FDeviceType, COUNT(*)  FROM Table GROUP BY FDeviceName, FDeviceType