Question

I have a mysql join and for someone reason its returning duplicate fields for image and firstname and lastname. Like it’s not joining right.

Here is the SQL

SELECT a.follow_id, a.user_id, a.following, b.firstname, b.lastname, c.firstname,   c.lastname, b.image, c.image
FROM followers a 
LEFT JOIN candidates b ON a.following = b.user_id
LEFT JOIN donors c On a.following = c.user_id
WHERE a.user_id = 222
LIMIT 9

Both candidates and donors have a firstname and lastname and image, so I need to get those fields, but not duplicate the fields.

My Results

Can someone please tell me what I’m doing wrong?

Thanks in advance.

Answer 1

SELECT a.follow_id, a.user_id, a.following, b.firstname, b.lastname, b.image
FROM followers a 
LEFT JOIN candidates b ON a.following = b.user_id
WHERE a.user_id = 222


UNION DISTINCT


SELECT a.follow_id, a.user_id, a.following, c.firstname,   c.lastname,  c.image
FROM followers a 
LEFT JOIN donors c On a.following = c.user_id
WHERE a.user_id = 222

I’m not sure i’m understand your problem correctly.