Mysqli執行錯誤:select Fullkey, pic1, sn from product where category= and pub=1 order by sort desc, Fullkey desc
   錯誤代碼:1064
   錯誤訊息: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 pub=1 order by sort desc, Fullkey desc' at line 1