SQL & PL/SQL

I want to create a table 'EMP_TEST'  FROM EMP table and to have a new column example job_end_date with no value.

create table emp_test as

(SELECT

ename

,eid

,sal,

,null job_end_date -------------------> New field and it will have no value

from emp);

when I am creating this table I am getting following error

'SQL Error: ORA-01723: zero-length columns are not allowed'

How can I resolve this issue.

Thanks in advance.

I really want to have it fast.