PHP Get data from tables that do not have a specific relationship - sql

Question

I have two tables (CONTROL & PAYMENT) that looks like this:
CONTROL PAYMENT
+--------------------------+ +------------------------+
| CNUMBER | SERIAL | | NUMBER | STATUS |
+--------------------------+ +------------------------+
| C-200-1 | SUDU-03 | | 200 | PAID |
| C-201-1 | SUDU-03 | | 201 | PAID |
| C-202-1 | SUDU-03 | | 202 | PROCESSING|
| C-203-1 | SUDU-03 | | 203 | PAID |
| C-204-1 | SUDU-03 | | 204 | PROCESSING|
| C-204-1 | SUDU-03 | | 205 | PROCESSING|
+--------------------------+ +------------------------+
I want to show a list like this:
+--------------------------+
| CNUMBER | STATUS |
+--------------------------+
| C-200-1 | PAID |
| C-201-1 | PAID |
| C-202-1 | PROCESSING |
| C-203-1 | PAID |
| C-204-1 | PROCESSING |
| C-205-1 | PROCESSING |
+--------------------------+
So, I need get data (SELECT) from table "control" using "serial" (in control table) like a search criteria to find the "status" (in payment table) through "number" (in payment table) using %LIKE% (to match "number" and "cnumber")
I am trying but still I can't figure it out!
I hope someone can help me and give me any idea.
EDIT:
SOLUTION 1:
select c.CNUMBER,p.STATUS from CONTROL c
inner join PAYMENT p on substr(c.CNUMBER,3,3)=p.NUMBER;
Thanks to #Syscall I solved the main problem but I just have a little issue:
How I can show all the values even payment entries are null/empty ?
If the entry on 'control' exist but in 'payment' not
something like that:
+--------------------------+
| CNUMBER | STATUS |
+--------------------------+
| C-200-1 | PAID |
| C-201-1 | | <--empty
| C-202-1 | PROCESSING |
| C-203-1 | PAID |
| C-204-1 | | <--empty
| C-205-1 | PROCESSING |
+--------------------------+
EDIT 2:
SOLVED, USING LEFT JOIN
Thanks again #Syscall.
SOLUTION:
select c.CNUMBER,p.STATUS from CONTROL c
left join PAYMENT p on substr(c.CNUMBER,3,3)=p.NUMBER WHERE col1 = '$var'

Answer 1

You could INNER JOIN using SUBSTR :
select c.CNUMBER,p.STATUS from CONTROL c
inner join PAYMENT p on substr(c.CNUMBER,3,3)=p.NUMBER;
Outputs :
+---------+------------+
| CNUMBER | STATUS |
+---------+------------+
| C-200-1 | PAID |
| C-201-1 | PAID |
| C-202-1 | PROCESSING |
| C-203-1 | PAID |
| C-204-1 | PROCESSING |
| C-204-1 | PROCESSING |
+---------+------------+