Query階段錯誤，請檢查SQL語法
select * from mod_customform_head where A_2 in () and A_3 = '' and A_4 ='' and A_8 ='主動活動' and use_mark = 'y'

MySQL傳回訊息：
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 A_3 = '' and A_4 ='' and A_8 ='主動活動' and use_mark = 'y'' at line 1