CREATE TABLE [dbo].[test](
  [Codice] [varchar](50) NOT NULL,
  [Descrizione] [varchar](60) NOT NULL,
  [Chiusura] [datetime] NULL,
 CONSTRAINT [PK_test] PRIMARY KEY CLUSTERED 
(
  [Codice] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [PRIMARY]

GO