sql - Basic Oracle question -

i new oracle. when create stored procedure using:

create or replace procedure procedure1  begin    select firstname,          lastname     firstname,lastname     employee;  end procedure1; 

i following errors:

pl/sql statement ignored identifier firstname must declared ora-00904 invalid identifier

think "as" keyword won't work. if doesn't work, use "is".
rest fine , tips.

if need regarding pl/sql, can have @ link. simple , easy understand;
http://plsql-tutorial.com/

this solution error getting;

create or replace procedure procedure1   v_firstname employee.firstname%type;   v_lastname employee.lastname%type;   cursor empcursor   select firstname, lastname employee;         begin         if not empcursor%isopen          open empcursor;      end if;      loop         fetch empcursor v_firstname,v_lastname;         exit when empcursor%notfound;      end loop;      if empcursor%isopen         close empcursor;      end;   end procedure1; 

you can use dbms_output.put_line(v_firstname || ','|| v_lastname), inside loop display output. in order that, first need execute command server output on