Sybase Stored Procedure Creation Doubt

I have a general doubt regarding creating stored procedues which can substitue different values say null when 0 or 0.0 is passed as an argument. Right now i know to create a stored procedure which can use the default value only if nothing is passed to the parameter.

create proc myproc
          ( @myparam1  int = 0,
            @myparam2  float ,
            @myparam3  char(20) = "mydefault")

.... Here if i pass a 0 to the first parameter which is of an int type and if i pass 0.0 to the second parameter i want to substitute as null. But i dont want to do the same inside the main logic of the stored procedure. How can i achieve the same...
Please help...
gaugetaAsked:
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.

alpmoonCommented:
If I don't misunderstand what you want, you can only do it in the stored procedure by assigning null value:

if @myparam1 = 0
    select @myparam1 = null

Maybe you should explain what you mean with "inside the main logic of the stored procedure"
0
gaugetaAuthor Commented:
@alpmoon:Thanks for the reply.
Just like we have the default values for the parameteres which get added if nothing is passed to the parameter,i was wondering if there was a method to specify an alternate value to a specific  parameter in the parameter definition stsge itself instead of embedding in the stored rocedure logic using if else.
0
alpmoonCommented:
I don't think that there is any other way of doing it other than embedding it in the stored procedure logic. You are looking for a syntax like 'case' for parameters, it is not available as it is designed only for the case parameter doesn't have a value.
0

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
Sybase Database

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.