Question

I have a payments table that has the following structure.

**Payments**
id
name
created_by - user_id
closed_by - user_id

**Users**
user_id
name
surname

What is the best way to show both the name and surname of the user who has created and closed the payment file.

The only way i can think this could work would be using a subquery for both(created_by,closed_by fields) thanks

Answer 1

Try this:

SELECT p.id, p.name, 
CONCAT (u1.name,' ', u1.surname) created,
CONCAT (u2.name,' ', u2.surname) closed,
FROM payments p INNER JOIN users u1
ON p.created_by = u1.user_id
INNER JOIN users u2
ON p.closed_by = u2.user_id

EDITED: if you want name and surname splitted

SELECT p.id, p.name, 
u1.name created_name, u1.surname created_surname,
u2.name closed_name, u2.surname closed_surname,
FROM payments p INNER JOIN users u1
ON p.created_by = u1.user_id
INNER JOIN users u2
ON p.closed_by = u2.user_id