本文介绍了在具有特定值的行之后选择行的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
再次,我仍然遇到大量查询和问题,因此请原谅所有常见的sql问题8)
Hey again, im still getting a hang of Queries and stuff so please excuse all the frequent sql questions 8)
无论如何,我都会尝试在某个值之后选择行.听不懂?好的,这就是它的外观.
Anyways im trying to select rows after a certain value.Dont understand? Ok this is how it actually looks.
表:消息
+------------+-----------+---------+-------+---------------------------------------+----------------+------------------+
| message_id | thread_id | user_id | to_id | body | message_status | uid_sent_deleted |
+------------+-----------+---------+-------+---------------------------------------+----------------+------------------+
| 1 | 1 | 1 | 7 | How are you bro? | read | 1 |
| 2 | 1 | 7 | 1 | IM good what about you kenny? | read | 0 |
| 3 | 1 | 1 | 7 | Same just chilling how is your sister | read | 1 |
| 4 | 1 | 7 | 1 | Shes coool u know just doin great | read | 0 |
| 7 | 1 | 1 | 7 | Thats nice | read | 1 |
| 8 | 1 | 7 | 1 | Yupp | read | 0 |
| 9 | 1 | 1 | 7 | hhahaha | read | 1 |
| 10 | 1 | 7 | 1 | anyways.... | unread | 0 |
+------------+-----------+---------+-------+---------------------------------------+----------------+------------------+
其中消息ID为9的消息在uid_sent_deleted列中的值为"1".我试图在uid_sent_deleted列中最后一行为'1'的行之后选择行.
Where the message id is 9, is has the value of '1' in the column uid_sent_deleted.Im trying to select rows after the last row that has a value of '1' in the column uid_sent_deleted.
这是我当前正在使用的sql.感谢您的帮助!
here is the sql that im currently working with. Thanks for the help!!
SELECT message_id, thread_id, messages.user_id, to_id, body, message_status, uid_sent_deleted
FROM messages
INNER JOIN messages_thread ON messages_thread.id = messages.thread_id
WHERE thread_id =1
GROUP BY messages.message_id
ORDER BY message_id ASC
推荐答案
... WHERE thread_id = 1 AND id >
(SELECT MAX(id) FROM messages WHERE uid_sent_deleted = 1)
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