INSERT INTO
(SELECT employee_id, last_name, email, hire_date, job_id,
salary, commission_pct FROM employees)
VALUES (207, 'Gregory', ' pgregory@oracle.com ',
sysdate, 'PU_CLERK', 1.2E3, NULL);

DELETE FROM (SELECT * FROM employees)
WHERE job_id = 'SA_REP'
AND commission_pct <?
can't parser