Android SQLite实现query顺序、倒叙查询

         //顺序
            sql = "select * from "+MySQL.TABLE_BURNER+" order by _id asc";
	     //倒序
            sql = "select * from "+MySQL.TABLE_BURNER+" order by _id desc";
        //得到查询后的游标
         Cursor cursor=sqLiteDatabases.rawQuery(sql,null);