I worked on many tables and all had this thing:
CREATE TABLE Persons( [id] [int] IDENTITY(1,1) NOT NULL, [modified_on] [datetime] NULL, [modified_by]
If you dont have any large text columns i.e. text, ntext, image, xml, varchar(max), nvarchar(max), varbinary(max), and CLR then you can just use:
CREATE TABLE Persons( [id] [int] IDENTITY(1,1) NOT NULL, [modified_on] [datetime] NULL, [modified_by] [varchar](200) NULL,)ON [PRIMARY]