How to get the right order? - sql

Question

I have written queries to get the total qty of each month in 2016. Then I added another row called Total to sum up the total qty in 2016. But the ordermonth in the result turned out to be in a mess.
So, the question is is there any way to put the ordermonth in the right order? Both ASC and DESC are OK. Thanks in advance.
The query I've written:
WITH CTE AS(
SELECT CONVERT(CHAR(10), MONTH(orderdate)) AS ordermonth, SUM(qty) AS qty
FROM dbo.orders
WHERE YEAR(orderdate) = 2016
GROUP BY MONTH(orderdate)
)
SELECT * FROM CTE
UNION
SELECT 'Total', SUM(qty)
FROM dbo.orders
WHERE YEAR(orderdate) = 2016;
Current result:
ordermonth qty
1 4134
10 6454
11 9780
12 4000
2 5548
3 6970
4 3543
5 3309
6 4251
7 4997
8 6134
9 6926
Total 66046

Answer 1

First, you can do what you want without UNION. Something like this:
select coalesce(cast(month(orderdate) as varchar(255)), 'Total') as mon . . .
from . . .
group by grouping sets (month(orderdate), ())
order by month(orderdate)
No CTE, that's the entire query.

Answer 2

You can put into subquery and try like below:
select * from (
--your query including cte and union
) a
order by case when a.[Month] = 'Total' then 9999 else convert(int,a.[Month]) end

Answer 3

You can sort it by yyyymm, that is the best way even when you'll have more than one year, i.e.
order by orderyear * 100 + ordermonth
Or you can just add '0' for getting the right order like this:
order by right('0' + cast(ordermonth as varchar(2)), 2)

Answer 4

I found an easy way to solve this issue, that is, replacing UNION with UNION ALL.
WITH CTE AS(
SELECT CONVERT(CHAR(10), MONTH(orderdate)) AS ordermonth, SUM(qty) AS qty
FROM dbo.orders
WHERE YEAR(orderdate) = 2016
GROUP BY MONTH(orderdate)
)
SELECT * FROM CTE
UNION ALL
SELECT 'Total', SUM(qty)
FROM dbo.orders
WHERE YEAR(orderdate) = 2016;