Question

My SQL view returns the following

ID Name
AA Gina
AB George
AC John

I would like to add a computed column UpCounter so my view returns something like

ID Name    UpCounter
AA Gina    1
AB George  2
AC John    3

Is it possible?

UPDATE: The UpCounter is actually the row index

Answer 1

See the OVER Clause.

SELECT ID, Name, ROW_NUMBER() OVER(ORDER BY ID ASC) AS UpCounter
FROM xyz

Here’s a use case:

WITH x AS (
    SELECT 'AA' as ID, 'Gina' as Name
    UNION
    SELECT 'AB' as ID, 'George' as Name
    UNION
    SELECT 'AC' as ID, 'John' as Name
)
SELECT ID, Name, ROW_NUMBER() OVER(ORDER BY ID ASC) AS UpCounter
FROM x