Question

Considering these 2 tables:

Table orders:

    order_id owner_id client_id
    ---------------------------
    123      2        1
    124      1        2

Table users

    user_id name
    ------------
    1       Bill
    2       John

I’m trying to get the following result:

    order_id owner_name client_name
    -------------------------------
    123      John       Bill
    124      Bill       John

What is the “best” query?

Thanks!

Answer 1

select o.order_id, 
       ow.name as owner_name, 
       cl.name as client_name
from orders o
  join users ow on o.owner_id = ow.user_id
  join users cl on o.client_id = cl.user_id