Rookie question

Can anybody tell me why these statements are generating errors?   Thanks.

SQL> create or replace procedure test
  2 is
  3 begin
  4 select * from emp_hist ;
  5 end test ;
  6 /

Warning: Procedure created with compilation errors.

SQL> create or replace procedure test
  2 (v_dummy out number)
  3 is
  4 begin
  5 select * from emp_hist ;
  6 end test ;
  7 /

Warning: Procedure created with compilation errors. Received on Thu Oct 16 1997 - 00:00:00 CDT