for MS SQL 2000
how can I do this in one time (into the CREATE TABLE)

CREATE TABLE [dbo].[Users] (
[id_Users] [int] NOT NULL ,
[Name] [nvarchar] (100) NULL,
[Serial] [nvarchar] (100) NULL,
) ON [PRIMARY]

ALTER TABLE [dbo].[Users] WITH NOCHECK ADD
CONSTRAINT [PK_Users] PRIMARY KEY CLUSTERED
(
[id_Users]
) ON [PRIMARY]


CREATE UNIQUE INDEX [IX_Users] ON [Users]([Serial]) ON [PRIMARY]

and that one

CREATE TABLE [dbo].[UsersExtra] (
[id_Users] [int] NOT NULL
) ON [PRIMARY]


ALTER TABLE [dbo].[UsersExtra] ADD
CONSTRAINT [FK_UsersExtra_Users] FOREIGN KEY
(
[id_Users]
) REFERENCES [Users] (
[id_Users]
) ON DELETE CASCADE


thank you