ms sql call stored procedure with date time parameter

how do one call a stored procedure that has date input .

spName getDate()

does not work.

the qu开发者_运维技巧estion is about calling within ms sql managment studio.

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SQL Server 2008

declare @d date = getdate() /*Or datetime looking at the title*/
exec spName @d

Earlier Versions

declare @d datetime
set @d = getdate()
exec spName @d