adding a column based on function to query output

I am requesting 2 columns from my table with another column being created with values from math function.  (output of query)

col1(qty)     col2(price)     col3(qty * price)(this is not in the table)
5                       8                      40

can someone write out the query based on clientid = 5 please.
that will give me the desired result

table = orders
client id = 5
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

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.

Jim HornMicrosoft SQL Server Data DudeCommented:
Not sure what you're asking.  If it's 'Give me the above expression for only clientid=5, then add a WHERE clause that filters the rows only for that client.

SELECT col1 as qty, col2 as price, col1 * col2 as extended_price
FROM orders
WHERE clientid = 5

Open in new window

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
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

From novice to tech pro — start learning today.