sql stored procedure + if statement

is it possible to have an if statement in a query - so if a value of a variable is 'yes' for example a line is added to the query ?

ie

@Variable

select * from table
where date >= getDate()
if @Variable = 'yes' then add this line of code to the query
and customerActive = 1
dkilbyAsked:
Who is Participating?

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

x
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.

ste5anSenior DeveloperCommented:
hmm..

USE AdventureWorks2014;
GO

DECLARE @AllRows BIT = 0;

SELECT	*
FROM	sys.tables T
WHERE	T.name LIKE 'Person%' OR @AllRows = 1;

SET @AllRows = 1;

SELECT	*
FROM	sys.tables T
WHERE	T.name LIKE 'Person%' OR @AllRows = 1

Open in new window

Scott PletcherSenior DBACommented:
select * from table
where date >= getDate() and (@variable = 'no' or customerActive = 1)

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
Scott PletcherSenior DBACommented:
If @variable could ever possibly be null rather than no:

select * from table
where date >= getDate() and (@variable is null or @variable = 'n' or customerActive = 1)
dkilbyAuthor Commented:
thank you, there is chance of a null value so this worked perfectly
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.