选择MYSQL中的底部结果

我正在编写一个消息传递系统，我正在尝试选择按升序发送的最后10条消息（最新消息在底部）

但是，这样做有一个问题：(

这是我当前的SELECT语句，表中有30多行可用

SELECT * FROM 
( SELECT * FROM messages ORDER BY addedDate DESC LIMIT 10 ) tb 
WHERE ( senderID = "1" OR receiverID = "1" ) 
AND ( senderID = "3" OR receiverID = "3" ) 
ORDER BY addedDate ASC LIMIT 10

然而，由于某些原因，当使用发送方和接收方的不同组合时，如果行数少于我，则只返回7行，即使每个结果至少应为我提供所需的10行

是否有其他方法可用于获取匹配的底部10行：

WHERE ( senderID = "1" OR receiverID = "1" ) 
AND ( senderID = "3" OR receiverID = "3" ) 

---

但按升序选择底部的10个。

子查询中应该有WHERE语句，而不是主查询

试试这个：

SELECT * FROM 
( SELECT * FROM messages
  WHERE ( senderID = "1" OR receiverID = "1" ) 
  AND ( senderID = "3" OR receiverID = "3" )
ORDER BY addedDate DESC LIMIT 10 ) tb 
ORDER BY addedDate ASC

---

您不需要第二个限制，因为子查询只得到10个结果。

子查询中应该有WHERE语句，而不是主查询

试试这个：

SELECT * FROM 
( SELECT * FROM messages
  WHERE ( senderID = "1" OR receiverID = "1" ) 
  AND ( senderID = "3" OR receiverID = "3" )
ORDER BY addedDate DESC LIMIT 10 ) tb 
ORDER BY addedDate ASC

您不需要第二个限制，因为您只从子查询中获得10个结果