SQL function as default parameter value?

Question

I tried changing a default parameter value with this:

ALTER PROCEDURE [dbo].[my_sp]
@currentDate datetime = GETDATE()

and all the SQL pre-c

Answer 1

I don't think that is possible, you have to use a literal (constant) value as the default.

However you can do this:

Set @currentDate = Coalesce(@currentDate , GetDate())