sqlserver創建表

--創建學員信息數據表
use StudentManageDB
go
 if exists(select * from sysobjects where name='Students')
drop table Students
go
create table Students
(
    StudentId int identity(10000,1),--學號
    StudentName varchar(20) not null,--姓名
    Gender char(2) not null,--性別
    Birthday datetime not null,--出生日期
    StudentIdNo numeric(18,0) not null,--身份證號
    Age int not null,--年齡
    PhoneNumber varchar(50),
    StudentAddress varchar(500),
    ClassId int  not null   --班級外鍵
)
go
--創建班級表
if exists(select * from sysobjects where name='StudentClass')
drop table StudentClass
go
create table StudentClass
(
    ClassId int primary key,--班級編號
    ClassName varchar(20) not null
)
go
--創建成績表
if exists(select * from sysobjects where name='ScoreList')
drop table ScoreList
go
create table ScoreList
(
    Id int identity(1,1) primary key,
    StudentId int not null,--學號外鍵
    CSharp int null,
    SQLServer int null,
    UpdateTime datetime not null--更新時間
)
go
--創建管理員表
if exists(select * from sysobjects where name='Admins')
drop table Admins
go
create table Admins
(
    LoignId int identity(1000,1) primary key,
    LoginPwd varchar(20) not null,--登錄密碼
    AdminName varchar(20) not null
)
go