SQL Server - Alguien me podria ayudar porfavor ante esta consulta en SQL

La verdad soy nuevo en esto , deseo aprender alguien me podria ayudar con estas consultas porfavor

CREATE TABLE [dbo].[CLIENTE](
[ClienteID] [int] IDENTITY(1,1) NOT NULL,
[EntidadID] [varchar](10) NOT NULL,
[TipoPrecioID] [varchar](2) NULL,
[FormaPagoID] [varchar](2) NULL,
[TipoClienteID] [int] NULL,
[RutaID] [int] NULL,
[Nombre] [varchar](200) NOT NULL,
[Telefono] [varchar](100) NULL,
[Fax] [varchar](100) NULL,
[Cel] [varchar](100) NULL,
[email] [varchar](100) NULL,
[PaginaWeb] [varchar](500) NULL,
[NombreContacto] [varchar](200) NULL,
[RazonSocial] [varchar](200) NOT NULL,
[Direccion] [varchar](500) NULL,
[NIT] [varchar](50) NOT NULL,
[DireccionFacturacion] [varchar](500) NULL,
[DiasCredito] [int] NULL,
[LimiteCredito] [money] NULL,
[EnviarMensaje] [bit] NULL,
[Mensaje] [varchar](100) NULL,
[FechaInicioMsg] [datetime] NULL,
[FechaVencMsg] [datetime] NULL,
[PermiteVentaFacVen] [bit] NULL,
[PermiteDesBoni] [bit] NULL,
[status] [varchar](1) NULL,
[usr] [varchar](50) NULL,
[PerDes] [decimal](18, 4) NULL,
[TransDate] [datetime] NULL,
[CodREF_TAC] [int] NULL,
CONSTRAINT [PK_CLIENTE] PRIMARY KEY CLUSTERED
(
[ClienteID] 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

SET ANSI_PADDING OFF
GO

ALTER TABLE [dbo].[CLIENTE] ADD CONSTRAINT [DF__CLIENTE__Entidad__7ABC33CD] DEFAULT ('SFA1') FOR[EntidadID]
GO

bien, ahí estan las consultas C:
ahora... en que ayudamos?