SQL語法錯誤

Question

我想寫一個查詢來刪除數據庫中的原始數據。這是查詢：

"delete from ombrellone where PosizioneX='"+i+"'AND PosizioneY='"+j+"')"); 

我不知道我錯了什麼。任何人都可以幫助我？

唯一的例外是：

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 ')' at line 1 

Answer 1

"delete from ombrellone where PosizioneX='" + i + "' AND PosizioneY = '" + j +"'";