Question

I Want To Join 2 Selections one:

SELECT user_email FROM users WHERE user_id = ?

And The Other Selection Is

SELECT f.friends_friend AS user_id, 
       users.username AS friend_name, 
       users.user_avtr AS profile_pic
FROM friends as f
LEFT OUTER JOIN(
    SELECT user_id,username,users.user_avtr FROM users
)AS users
ON f.friends_friend = users.user_id
WHERE f.friends_member = ?
UNION
SELECT f.friends_member AS user_id, 
       users.username AS friend_name, 
       users.user_avtr AS profile_pic
FROM friends as f
LEFT OUTER JOIN(
    SELECT user_id,username,users.user_avtr 
    FROM users
)AS users
ON f.friends_member = users.user_id
WHERE f.friends_friend = ?

i want to run those 2 queries in one query

Answer 1

Maybe, I misunderstand your question, but why couldn’t you just do this?

SELECT f.friends_friend AS user_id, 
       users.username AS friend_name, users.user_email as user_email,
       users.user_avtr AS profile_pic
FROM friends as f
LEFT OUTER JOIN(
    SELECT user_email, user_id,username,users.user_avtr FROM users
)AS users
ON f.friends_friend = users.user_id
WHERE f.friends_member = ?
UNION
SELECT f.friends_member AS user_id, 
       users.username AS friend_name, users.user_email as user_email,
       users.user_avtr AS profile_pic
FROM friends as f
LEFT OUTER JOIN(
    SELECT user_email, user_id,username,users.user_avtr 
    FROM users
)AS users
ON f.friends_member = users.user_id
WHERE f.friends_friend = ?