How to get the number of rows of the selected result from sqlite3?

Question

I want to get the number of selected rows as well as the selected data. At the present I have to use two sql statements:

one is

select * from XXX w         


        

Answer 1

select (select COUNT(0) 
            from xxx t1 
            where t1.b <= t2.b 
            ) as 'Row Number', b from xxx t2 ORDER BY b; 

just try this.