How do I write a query that outputs the row number as a column?

Question

How do I write a query that outputs the row number as a column? This is DB2 SQL on an iSeries.

eg if I have

table Beatles:

John
Paul
George
Ringo         


        

Answer 1

SELECT ROW_NUMBER() OVER(ORDER BY BEATLE_NAME) ROWNUM,BEATLE_NAME FROM BEATLES;