mysql - 如何像这样组合 2 个 MySQL 表？（多对一关系）

Question

我有这样的 UserComments 表：

1 | Frank | hello world
2 | Jane | Hi there
3 | Frank | this is my comments
4 | Frank | I think I need some sleep
5 | Jason | I need to buy new MacBook
6 | Jane | Please invite my new Blackberry PIN

另一方面，我有 FriendList 表包含：

1 | Jason
2 | Jane

假设我的朋友 ID 总是介于 1 和 5 之间。

而且由于弗兰克不是我的朋友，我无法看到他的评论。如何组合这样的表（ORDER BY UserComments.ID DESC）：

1 | Jane | Please invite my new Blackberry PIN
2 | Jason | I need to buy new MacBook
3 | Jane | Hi there

谢谢。

Answer 1

试试这个：

    SELECT A.ID, B.UserName, B.Comment 
      FROM FriendList A
INNER JOIN UserComments B ON A.ID = B.ID
  ORDER BY A.ID DESC

Answer 2

试试这个：：

Select 
* 
from 
user_comments inner join friend_List on (join criteria)
where user_Id = ? order by user_comments.id desc