ALTER TABLE [dbo].[T_PERIOD_SECTION] ADD [PeriodSection] uniqueidentifier
GO
ALTER TABLE [dbo].[T_PERIOD_SECTION] WITH NOCHECK ADD CONSTRAINT [FK_T_PERIOD_SECTION_T_PERIOD_SECTION_PeriodSection] FOREIGN KEY ([PeriodSection]) REFERENCES [dbo].[T_PERIOD_SECTION] ([PeriodSectionID])
GO