Using CASE statement in ORDER BY clause Sql 2005

Hi, I have a set of rows that I need to sort them in order by using case statement.
How can this be done?

sample rows

entity, sales, psales,tsales ( columns )

sorting criteria ( way I need to ouput results)
when entity sales > 0 and tsales > 0, then tsales + psales desc
when entity sales = 0, then tsales + psales desc
when entity sales > 0 and tsales = 0, then sales+psales desc

would order by group similar rows ( based on above ) and sort them in 3 different ways ?

Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ivan_belalAuthor Commented:
I been to that link. It shows dynamic order by. My case is not. Can you / someone test out my example and provide me with a few snippets would be helpful, thahks.

select case
  when sales > 0 and tsales = 0 then sales + psales
  when sales > 0 then tsales+psales
  when sales = 0 then stales + psales
end as SortColumn, entity,sales,psales,tsales
order by 1 desc

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Try that
Entity Varchar(100),
Sales int,
psales int,
tsales int

INSERT INTO #T VALUES ('p1',50,0,100)
INSERT INTO #T VALUES ('p2',0,30,90)
INSERT INTO #T VALUES ('p3',30,60,0)
INSERT INTO #T VALUES ('p4',3,1,2)

ORDER BY CASE WHEN  sales > 0 and tsales > 0 then (tsales + psales ) 
when sales = 0 then tsales + psales 
when sales > 0 and tsales = 0 then sales+psales END Desc

Open in new window

ivan_belalAuthor Commented:
Looks like BrandonGalderisi's solution I needed. I will get back after a few tests, thanks...
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Microsoft SQL Server 2005

From novice to tech pro — start learning today.