按名称排序不按预期工作 - MySQL

Question

我有以下简单查询：

SELECT * FROM grade order by GRADENAME

输出：

这是一个主要在用户体验部分的问题，因为他收到<select></select>元素的成绩，如上面的列表所示。我有没有办法让他们从1A开始一直显示11D？有可能这样做吗？

修改

应用SELECT * FROM grade order by BIN(GRADENAME);

结果：

Answer 1

试试这个

SELECT * FROM grade order by BIN(GRADENAME);

Answer 2

可能是这样的

SELECT * FROM grade 
Order By Cast(SubString(GRADENAME,1,Length(GRADENAME) -1 As Int),Right(GRADENAME,1)

或者

SELECT * FROM grade 
Order By lpad(GRADENAME, 10, 0)

Answer 3

试试这个

SELECT GRADEID, 
       GRADENAME 
FROM   GRADE 
GROUP  BY GRADENAME 
ORDER  BY 2;