if else 错误！

Question

begin
  insert into flightForever select startdate,enddate,cost from flightTemp;
  if sqlcode=0 then
       commit;
  else 
       rollback;
  end if;
end
/老是报错：
ORA-06550: line 11, column 0:
PLS-00103: Encountered the symbol "end-of-file" when expecting one of the following:   ; <an identifier> <a double-quoted delimited-identifier>
The symbol ";" was substituted for "end-of-file" to continue可是if else endif语法没有错啊，到底是啥地方错了呢？ 

Answer 1

begin
  insert into flightForever select startdate,enddate,cost from flightTemp;
  if sqlcode=0 then
       commit;
  else 
       rollback;
  end if;
end;
/

Answer 2

begin
  insert into flightForever select startdate,enddate,cost from flightTemp;
  if sqlcode=0 then
       commit;
  else 
       rollback;
  end if;
end;

Answer 3

以测试begin
  insert into flightForever select startdate,enddate,cost from flightTemp;
  if sqlcode=0 then
       commit;
  else 
       rollback;
  end if;
end;--见";"