Jun 25, 2014  · Microsoft SQL Server 2014 Express is a powerful and reliable free data management system that delivers a rich and reliable data store for lightweight Web. I have created a foreign key (in SQL Server) by: alter table company add CountryID varchar(3); alter table company add constraint Company_CountryID_FK foreign key. SQL Server 2014 is a major upgrade that also has a host of. common table expressions, triggers, constraints,…