Question

Table join:

|ID|admin|user |data|
|1 |00001|00002|XXXX|

• admin(fk) = users.id,
• user(fk) = users.id.

Table users:

|id   |name|pass|type |
|00001|root|1234|admin|
|00002|user|1235|user |

select join.*,users.name as admin,users.name as user from join 
left join users on users.id=join.admin
left join users on users.id=join.user

where grrrrrrr

How can I do this?

Original query, I’m trying to run:

SELECT

    visits.id,
    visits.patient AS patient_id,
    visits.doctor AS doctor_id,
    visits.date,
    visits.time_booked,
    visits.time_arrived,
    visits.time_start,
    visits.time_end,
    visits.type_id,
    visits.complain,
    visits.diagnosis,
    visits.note,
    visits.stats,
    (personal.name WHERE personal.id=visits.patient and personal.role='patient') AS pt_name,
    (personal.name WHERE personal.id=visits.doctor and personal.role='doctor') AS dr_name
    FROM
    visits ,
    personal

Answer 1

You have to alias the table users with different aliases. Something like

select 
  a.*,
  u1.name as admin,
  u2.name as user 
from `join` a 
left join users u1 on u1.id = a.admin
left join users u2 on u2.id = a.`user`;

Also you have to escape the table name join, user since they are reserved keywords in MySQL. Try to avoid those names as object names.

SQL Fiddle Demo

This will give you:

| ID | ADMIN | USER | DATA |
----------------------------
|  1 |     1 |    2 | XXXX |

---

Update

For your query after you updated your question, you have to do this the same way, like this:

SELECT
  v.id,
  v.patient AS patient_id,
  v.doctor AS doctor_id,
  v.date,
  v.time_booked,
  v.time_arrived,
  v.time_start,
  v.time_end,
  v.type_id,
  v.complain,
  v.diagnosis,
  v.note,
  v.stats,
  pationts.name AS pt_name,
  doctors.name AS dr_name
FROM visits v
LEFT JOIN personal pationts  ON pationts.id   = v.patient 
                            AND pationts.role ='patient'
LEFT JOIN personal doctors   ON doctors.id    = v.patient 
                            AND doctors.role  ='doctor';

Updated SQL Fiddle Demo