Trying to add total for individual for every month/year - sql

Question

" We have two tables. One for hours which have been sent to a vendor (Master) and one for the hours we are about to send (Load). I am attempting to sum the hours based on month and year for each individual with subtotals. We want to find those individuals who have more than 300 hours for a particular month.
CREATE TABLE MasterTabletesting(
ID CHAR(9) NOT NULL
,Workdate DATE NOT NULL
,Emp CHAR(30) NOT NULL
,HoursWorked DECIMAL(18,2) NOT NULL);
INSERT INTO MasterTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('25','20160731','7502',24);
INSERT INTO MasterTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('25','20160731','21874',128);
INSERT INTO MasterTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('25','20160731','7502',166);
INSERT INTO MasterTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('72','20160831','7508',180);
INSERT INTO MasterTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('72','20160831','5501',180);
INSERT INTO MasterTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('72','20160831','21037',23);
INSERT INTO MasterTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('66','20160831','83641',22);
CREATE TABLE LoadTabletesting(
ID CHAR(9) NOT NULL
,Workdate CHAR(8) NOT NULL
,Emp CHAR(30) NOT NULL
,HoursWorked DECIMAL(18,2) NOT NULL);
INSERT INTO LoadTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('8','07312016','7500',24);
INSERT INTO LoadTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('6','07312016','21974',128);
INSERT INTO LoadTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('25','07312016','7500',166);
INSERT INTO LoadTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('72','08312016','7500',180);
INSERT INTO LoadTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('88','08312016','5507',180);
INSERT INTO LoadTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('23','08312016','21012',23);
INSERT INTO LoadTabletesting(ID,Workdate,Emp,HoursWorked) VALUES ('55','08312016','83667',22);}
The date in the load table is a char variable type which I have resolved with cast. My approach has been to place the necessary data from both tables in a view titled "Over300agtest:
SELECT ID AS 'ID'
,Employer AS 'Emp'
,month(WorkDate) AS 'Mnth'
,year(WorkDate) AS 'Yr'
,HoursworkedAS 'Hrs'
,’amt’ as ‘Table’
FROM Mastertabletesting
WHERE HoursWorked IS NOT NULL
GROUP BY ID, Employer, month(WorkDate), year(WorkDate)
UNION all
SELECT ID AS 'ID'
,Employer AS 'Emp'
,month(CAST((RIGHT(workdate, 4) + LEFT(workdate, 4)) AS DATE)) AS 'Mnth'
,YEAR(CAST((RIGHT(workdate, 4) + LEFT(workdate, 4)) AS DATE)) AS 'Yr'
,hoursworked AS 'Hrs'
,‘alt’ as ‘Table’
FROM Loadtabletesting
WHERE HoursWorked IS NOT NULL
GROUP BY ID, Employer, month(CAST((RIGHT(workdate, 4) +LEFT workdate,4)) AS DATE)), year(CAST((RIGHT(workdate, 4) + LEFT(workdate, 4)) AS DATE))
Then I am using a common table expression to find those which have over 300 hours in a particular month and then using a query to join to the CTE in order to add the employer they worked for. Any suggestions on how to add a line under the hours column for each month for the total would be greatly appreciated.
with monthsum as(
Select ID as 'ID'
, mnth as 'mnth'
, yr as 'yr'
,SUM(hrs)as 'TotalHrs'
From over300agtest
Group by ID, mnth, yr
having SUM(hrs) > 300)
Select ms.ID
,ms.mnth
,ms.yr
,emp
,hrs
,o3.[table]
,totalhrs
From monthsum ms left outer join over300agtest o3
on ms.ID = o3.ID and ms.mnth = o3.mnth and ms.yr =o3.yr
Order by ms.ID, ms.yr asc, ms.mnth asc
Here is the current output:
+----+------+------+-------+-----+-------+----------+
| ID | mnth | yr | emp | hrs | table | totalhrs |
+----+------+------+-------+-----+-------+----------+
| 25 | 7 | 2016 | 7502 | 24 | AMT | 484 |
| 25 | 7 | 2016 | 21874 | 128 | AMT | 484 |
| 25 | 7 | 2016 | 7502 | 166 | AMT | 484 |
| 25 | 7 | 2016 | 7500 | 166 | ALT | 484 |
| 72 | 8 | 2016 | 7508 | 180 | AMT | 563 |
| 72 | 8 | 2016 | 5501 | 180 | AMT | 563 |
| 72 | 8 | 2016 | 21037 | 23 | AMT | 563 |
| 72 | 8 | 2016 | 7500 | 180 | ALT | 563 |
+----+------+------+-------+-----+-------+----------+
Here is the output I am going for:
+-------+------+------+-------+-----+-------+
| ID | mnth | yr | emp | hrs | table |
+-------+------+------+-------+-----+-------+
| 25 | 7 | 2016 | 7502 | 24 | AMT |
| 25 | 7 | 2016 | 21874 | 128 | AMT |
| 25 | 7 | 2016 | 7502 | 166 | AMT |
| 25 | 7 | 2016 | 7500 | 166 | ALT |
| Total | | | | 484 | |
| 72 | 8 | 2016 | 7508 | 180 | AMT |
| 72 | 8 | 2016 | 5501 | 180 | AMT |
| 72 | 8 | 2016 | 21037 | 23 | AMT |
| 72 | 8 | 2016 | 7500 | 180 | ALT |
| Total | | | | 563 | |
+-------+------+------+-------+-----+-------+

Answer 1

I suggest this approach. You should be able to work out the specifics.
select convert(char(6), cast(workdate as date), 120) yearMonth
, sum(hrs) totalHours
from etc
group by convert(char(6), cast(workdate as date), 120)
having sum(hrs) > 300