I'm using MYSQL to display some data from specific tables... However I have small problem..
I'm trying to build some conversation system (for my learnin purpose)...
I query "database name messages" where I have 2 columns, user_one and user_two. The currently logged in user id can be eather user_one or user two (This fields are id's of users)...
So I use SELECT ... FROM table_name WHERE user_one = $id OR user_two = $id); and that display me messages properly where user_one or user_two is currently logged in user. It works fine...
However now I need to know how I join table users and pick only username of "other person", not logged one and display it on each message like "Message from..."!
So lets say I have following:
Users table:
id username
--------------------------
1 username1
2 username2
Messages table:
id title user_one user_two
--------------------------------------------
1 Title 1 2
2 Title2 2 1
So if username1 is logged in, when i output my messages i would like it to output:
Title From
-----------------------------------------
Title username2
Title2 username2
If username2 is logged in then it would say From: username1
So I want to display From username always of second person, not logged in one... I joined table regulary but it display me both users usernames...
Am I doing table structure wrong or how can I do that?
Thanks.
try this
SELECT Messages.title As title ,Users.username as `FROM` FROM Users
INNER JOIN Messages
ON Messages.user_two = Users.id
OR Messages.user_one = Users.id
WHERE Users.username != 'username1'
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.