说法是,一般来说,JOIN的顺序不重要,除非你要自己定制driving table。
示例:
SELECT a.account_id, c.fed_id, e.fname, e.lname-> FROM account AS a INNER JOIN customer AS c-> ON a.cust_id = c.cust_id-> INNER JOIN employee AS e-> ON a.open_emp_id = e.emp_id-> WHERE c.cust_type_cd = 'B';