MySQL错语信息 错误编码：1064 错误信息：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 area >=' at line 1 错误语句：SELECT count(*) as row_num FROM simcms_case WHERE open=1 and housetype = 1 and fituptype = 6 and area <= and area >=