DECLARE @Id Int                               
Select @Id = Id From sysobjects Where Name = 'tbl_Group_Labels'
IF not Exists(SELECT * FROM syscolumns WHERE id = @Id and Name = 'UId')
  Alter Table tbl_Group_Labels ADD uId UNIQUEIDENTIFIER Default(NEWID()) NOT NULL
                            
Select @Id = Id From sysobjects Where Name = 'tbl_GoodDescription'
IF not Exists(SELECT * FROM syscolumns WHERE id = @Id and Name = 'UId')
  Alter Table tbl_GoodDescription ADD uId UNIQUEIDENTIFIER Default(NEWID()) NOT NULL