Thêm số hàng vào truy vấn T-SQL này

Question

Làm cách nào để thêm số ROW vào kết quả truy vấn này?

SELECT DISTINCT 
    VehicleSpecs.SubmittedById, 
    COUNT(VehicleSpecs.SubmittedById) AS NumCars, 
    aspnet_Users.UserName 
FROM 
    VehicleSpecs 
    INNER JOIN aspnet_Users ON VehicleSpecs.SubmittedById = aspnet_Users.UserId 
WHERE 
    (LEN(VehicleSpecs.SubmittedById) > 0) 
GROUP BY 
    VehicleSpecs.SubmittedById, 
    aspnet_Users.UserName 
ORDER BY 
    NumCars DESC 

Answer 1

Add: ROW_NUMBER() OVER (ORDER BY NumCars)

EDIT:

WITH t1 AS 
(SELECT DISTINCT 
      VehicleSpecs.SubmittedById , 
      COUNT(VehicleSpecs.SubmittedById) AS NumCars , 
      aspnet_Users.UserName 
    FROM  VehicleSpecs 
      INNER JOIN aspnet_Users ON VehicleSpecs.SubmittedById = aspnet_Users.UserId 
    WHERE (LEN(VehicleSpecs.SubmittedById) > 0) 
    GROUP BY VehicleSpecs.SubmittedById , 
      aspnet_Users.UserName 
) 
SELECT ROW_NUMBER() OVER (ORDER BY NumCars), * 
FROM t1 
ORDER BY NumCars 

Answer 2

Bọc bạn toàn bộ truy vấn trong một truy vấn phụ và thêm row_number trong truy vấn bên ngoài.

select *, row_number() over(order by (select 0)) as rn 
from 
    (
    select distinct -- your columns 
    from YourTable 
) as T 
order by NumCars desc