Column level vs table level constraints in sql server?

Question

a. Column Level

GO

CREATE TABLE Products
(
ProductID INT CONSTRAINT pk_products_pid PRIMARY KEY,
ProductName VARCHAR(25)
);

GO

b.

Answer 1

A bit late to the party but FYI for others

http://social.technet.microsoft.com/wiki/contents/articles/13744.table-level-vs-column-level-constraints.aspx