SQL语法错误

Question

我想写一个查询来删除数据库中的原始数据。这是查询：

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

我不知道我错了什么。任何人都可以帮助我？

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 +"'";