Row numbers for a query in informix

Question

I am using informix database, I want a query which you could also generate a row number along with the query

Like

select row_number(),firstName,lastN         


        

Answer 1

The best way is to use a (newly initialized) sequence.

begin work;
create sequence myseq;
select myseq.nextval,s.firstName,s.lastName from students s;
drop sequence myseq;
commit work;