怎麼算或GROUPBY後在MySQL行總數

Question

海蘭我有2個表

一，應用

id | name | status 
==================== 
1 | morvick | complete 
2 | siti | prosess 
3 | boby | complete 

2.application_test

id | application_id | test_id | result
======================================
1 | 1 | 1 | 70
2 | 1 | 2 | 80
3 | 1 | 3 | 90
4 | 2 | 1 | 60
5 | 2 | 2 | 80
6 | 2 | 3 | 70
7 | 3 | 1 | 90
8 | 3 | 2 | 70
9 | 3 | 3 | 60
10| 3 | 4 | 80

更改爲MyQuery這樣的：

SELECT test_id, 
SUM(IF(app.status='complete',apt.result,0)) AS complete_sum, 
SUM(IF(app.status='process',apt.result,0)) AS process_sum 
FROM application_test AS apt 
JOIN application AS app ON app.id=apt.application_id 
GROUP BY apt.test_id 

和是這樣的：
test_id | SUM(result = complete) | SUM(result = proses) |
1 | 90 | 50
2 | 80 | 40
3 | 90 | 60
4 | 80 | 70

我quetion是：我怎樣才能得到全部或之後，我數行數一個查詢GROUPBY ..？例如，4總數

Answer 1

使用子查詢，

Select *, Count(*) as total_rows From(
SELECT test_id, 
SUM(IF(app.status='complete',apt.result,0)) AS complete_sum, 
SUM(IF(app.status='process',apt.result,0)) AS process_sum 
FROM application_test AS apt 
JOIN application AS app ON app.id=apt.application_id 
GROUP BY apt.test_id) 

Answer 2

這是你想要的嗎？

SELECT (select count(*) from application_test) as total_row, 
test_id, 
SUM(IF(app.status='complete',apt.result,0)) AS complete_sum, 
SUM(IF(app.status='process',apt.result,0)) AS process_sum 
FROM application_test AS apt 
JOIN application AS app ON app.id=apt.application_id 
GROUP BY apt.test_id