准备工作

创建表

use [test1]
go

create table [dbo].[student](
[id] [int] identity(1,1) not null,
[name] [nvarchar](50) null,
[project] [nvarchar](50) null,
[score] [int] null,
constraint [pk_student] primary key clustered
(
[id] 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