-- 问题提炼:emp_no为奇数 且last_name不为Mary 按hire_date逆序排列 -- 解决 emp_no为奇数, (emp_no % 2) = 1 SELECT emp_no ,birth_date ,first_name ,last_name ,gender ,hire_date FROM employees WHERE (emp_no % 2) = 1 AND last_name <> 'Mary' ORDER BY hire_date DESC ;
END
-- 问题提炼:emp_no为奇数 且last_name不为Mary 按hire_date逆序排列 -- 解决 emp_no为奇数, (emp_no % 2) = 1 SELECT emp_no ,birth_date ,first_name ,last_name ,gender ,hire_date FROM employees WHERE (emp_no % 2) = 1 AND last_name <> 'Mary' ORDER BY hire_date DESC ;
END