Question

I have two tables. The structure is :

mysql> desc working;
+-------------+-------------+------+-----+---------+-------+
| Field       | Type        | Null | Key | Default | Extra |
+-------------+-------------+------+-----+---------+-------+
| worker_id   | varchar(12) | YES  |     | NULL    |       | 
| worker_duty | varchar(30) | YES  |     | NULL    |       | 
| salary      | varchar(8)  | YES  |     | NULL    |       | 
+-------------+-------------+------+-----+---------+-------+
3 rows in set (0.00 sec)

mysql> desc users;
+-------------+--------------+------+-----+---------+-------+
| Field       | Type         | Null | Key | Default | Extra |
+-------------+--------------+------+-----+---------+-------+
| user_id     | varchar(12)  | YES  |     | NULL    |       | 
| user_name   | varchar(21)  | YES  |     | NULL    |       | 
| discription | varchar(200) | YES  |     | NULL    |       | 
+-------------+--------------+------+-----+---------+-------+
3 rows in set (0.00 sec)

I want to join this two table using worker_id and user_id and fetch it using PHP.

I use :

SELECT * from users t1
WHERE user_id="293274"
AND SELECT worker_duty ,worker_id from working t2
             WHERE t1.user_id= t2.worker_id

But this code does not work.

Answer 1

inner join

select u.user_id, u.user_name, u.discription, w.worker_duty
from users u
inner join working w on w.worker_id = u.user_id
where u.user_id = "293274";