Calculate sum, counts in many to many - mysql

Question

Greetings I am trying to sum up expense value for each transaction.
Association table.
**Assoc table schema**
| PK_id | FK_transaction | FK_Expense |
|-------|----------------|------------|
| 1 | 1 | 85 |
| 2 | 2 | 81 |
| 3 | 3 | 77 |
| 4 | 4 | 83 |
| 5 | 5 | 84 |
| 6 | 6 | 105 |
| 7 | 7 | 104 |
| 8 | 8 | 71 |
| 9 | 8 | 88 |
| 10 | 8 | 90 |
Transaction table
**Transaction table schema**
| PK_id | type | value | confirmed_value |
|-------|------|-------|--------------------|
| 1 | 1 | 3.2 | 0 |
| 2 | 1 | 23.2 | 0 |
| 3 | 1 | 33.2 | 0 |
| 4 | 1 | 43.2 | 11.00 |
| 5 | 1 | 53.2 | 0 |
| 6 | 1 | 63.2 | 0 |
| 7 | 1 | 73.2 | 0 |
| 8 | 1 | 83.2 | 66.00 |
| 9 | 1 | 93.2 | 0 |
| 10 | 1 | 133.2 | 77.00 |
| 11 | 1 | 123.2 | 0 |
Expences Table
| PK_id | value |
|-------|-------|
| 85 | 3.2 |
| 81 | 23.2 |
| 77 | 33.2 |
| 83 | 43.2 |
| 84 | 53.2 |
| 105 | 63.2 |
| 104 | 73.2 |
| 71 | 83.2 |
| 88 | 93.2 |
| 90 | 133.2 |
Result ::
| PK_id | value | confirmed_value |
|-------|-------|-----------------|
| 1 | 3.2 | 0 |
| 2 | 23.2 | 0 |
| 3 | 33.2 | 0 |
| 4 | 43.2 | 11 |
| 5 | 53.2 | 0 |
| 6 | 63.2 | 0 |
| 7 | 73.2 | 0 |
| 8 | 83.2 | 66 |
| 8 | 93.2 | 66 |
| 8 | 133.2 | 66 |
Desired - before calculations ( just to give u the idea )
| PK_id | value | confirmed_value |
|-------|-------|-----------------|
| 1 | 3.2 | 0 |
| 2 | 23.2 | 0 |
| 3 | 33.2 | 0 |
| 4 | 43.2 | 11 |
| 5 | 53.2 | 0 |
| 6 | 63.2 | 0 |
| 7 | 73.2 | 0 |
| 8 | 309.6 | 66 |
Full desired result
count matching values COUNT(confirmed_value = value )
count entries that not match COUNT(confirmed_value != value )
/\ Calculate value of confirmed values
?? sum(transactions.confirmed_value)
and calculate value itself
Should be a row result ( example )
=======================================================================================================================
MATCHED | NOT_MATCHED | SUM(of values) | COUNT(of confirmed equal to value ) | COUNT(of confirmed ! equal to value )
=======================================================================================================================
1 | 10 | 3003.22 | 3 | 10
=======================================================================================================================
SQL Fiddle : http://sqlfiddle.com/#!9/2ab102/9
Thanks for any tips

Answer 1

Try this query -
SELECT transactions.PK_id,
SUM(expenses.value),
transactions.confirmed_value
FROM `assoc`
JOIN `expenses` ON `assoc`.`FK_Expense` = `expenses`.`PK_id`
JOIN `transactions` ON `assoc`.`FK_transaction` = `transactions`.`PK_id`
GROUP BY transactions.PK_id,
transactions.confirmed_value
Fiddle Demo - http://sqlfiddle.com/#!9/2ab102/14