SQL to output line number in results of a query

Question

I would like to generate a line number for each line in the results of a sql query. How is it possible to do that?

Example: In the request

select di         


        

Answer 1

You can use the ROW_NUMBER function for this. Check the syntax for this here http://msdn.microsoft.com/en-us/library/ms186734.aspx

SELECT FirstName, LastName, ROW_NUMBER() OVER(ORDER BY FirstName) AS 'Row#'    
FROM Sales.vSalesPerson;

For your query,

SELECT client_name, ROW_NUMBER() Over (Order By client_name) AS row_number 
FROM   (select distinct client_name from deliveries) SQ

will work.