Obtaining only certain values (sql) - mysql

Question

I have 3 different tables: table1, table2, table3
Table 1 contains all the different orders that were purchased
Table 2 contains the detail of every order (i mean, it contains a
column called ORDER_DETAIL and the number represent an item of
that order -a unique value)
Table 3 contains the workflow.. some numbers that were inside
ORDER_DETAIL from Table 2 will appear here because this item must be
approved to be delivered
I want to obtain all the different orders whose items did not appear in Table 3.
This picture explains everything:
This is my SQLFIDDLE: http://sqlfiddle.com/#!9/5bfc22/2
I did this query but i am not getting what i want:
select * from table1 kio
inner join table2 jio on kio.ORDER_NUMBER = jio.ORDER_NUMBER
where jio.CANCELLED = 0
and not exists (select 1 from table3 gio where jio.ORDER_DETAIL = gio.ORDER_DETAIL)
Also, how can i obtain those orders whose ORDER_DETAILs only appear on TABLE 2 AND those orders whose order_details appear in table 3 with PROCESSED = 1 and APPROVED = 1? All in the same query.

Answer 1

You can use aggregation: join table1 with table2, then left join table3, aggregate by order_number and filter on groups that have no match in table3.
select t1.id, t1.order_number
from table1 t1
inner join table2 t2 on t2.order_number = t1.order_number
left join table3 t3 on t3.order_detail = t2.order_detail
group by t1.id, t1.order_number
having count(t3.order_detail) = 0
In your DB Fiddle, this produces:
id order_number
3 46646
Also, how can i obtain those orders whose ORDER_DETAILs only appear on TABLE 2 AND those orders whose order_details appear in table 3 with PROCESSED = 1 and APPROVED = 1? All in the same query
For this, you can just add another pair of conditions in the having clause:
having
count(t3.order_detail) = 0
or (max(t3.processed) = 1 and max(t3.approved) = 1)
Yields:
id order_number
1 78945
3 46646

Answer 2

I want to obtain all the different orders whose items did not appear in Table 3.
This seems like a reasonable interpretation of the question, although you add more questions later.
If so, then you don't seem to need table1:
select t2.order_number
from table2 t2 left join
table3 t3
on t2.ORDER_DETAIL = t3.ORDER_DETAIL
group by t2.order_number
having count(t3.ORDER_DETAIL) = 0;