sql如何查询表的第一条记录和最后一条记录

问题：

方法一：使用top

select TOP 1 * from apple;

select TOP 1 * from apple order by id desc;

方法二：使用LIMIT

mysql> select * from apple LIMIT 1;

mysql> select * from apple order by asc id LIMIT 1;

mysql> select * from apple order by id desc LIMIT 1;