You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'and d_descr = '??????'' at line 3

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'and d_descr = '??????'' at line 3 为什么拿到的是几个问号？ 编码问题吗？求解决