（3）日誌檔案：邏輯名為SchoolLog，檔名為“D:\School\SchoolLog.ldf,”檔案初始大小為10MB，檔案的最大大小為50MB，檔案的增長率為1MB；

create database School  
on primary  
(name='SchoolData',  
filename='D:\School\SchoolData.mdf',  
size=50MB,  
maxsize=unlimited ,  
filegrowth=20%)  
log on(  
name='SchoolLog',  
filename='D:\School\SchoolLog.ldf',  
size=10MB,  
maxsize=50MB,  
filegrowth=1MB  
)  
 

（1）表tblstudent（學生表）：

SQL語句如下：

create table tblstudent(  
stuID bigint primary key,  
stuName nvarchar(10) not null,  
stuSex nchar(1) not null,  
stuBirth datetime,  
stuNum nvarchar(18) unique,  
Departed int,  
City nvarchar(10) default '杭州' ,//設定預設值  
constraint ck_tblstudent_stusex check(stuSex IN('男','女') ),//建立約束  
constraint ck_tblstudent_stuBirth check(stuBirth<getdate())  
)   
 

sql語句如下：

create table tblscope(  
stuID bigint ,  
Math int,  
English int,  
Computer int,  
Summary int,  
/*建立外來鍵約束*/  
constraint stuID_FK foreign key (stuID) references tblstudent(stuID),  
constraint ck_tblscope_Math CHECK(Math between 0 and 100 or Math is null),  
constraint ck_tblscope_English CHECK(English between 0 and 100 or English is null),  
constraint ck_tblscope_Computer CHECK(Computer between 0 and 100 or Computer is null)  
)  
 

3．使用SQL語句插入下表中的資料：

/*批量插入，當新增一條新的記錄時，可以省略欄位名，但每個欄位都必須有值)*/  
insert into tblscope values(1001,70,80,90,null),(1002,45,55,60,null);  

4．找出總成績最高的學生的學號和姓名

 SQL語句如下：

/*第一步：從tblscope表中找出最高成績*/  
select  max(Math+English+Computer) from tblscope   
  
/*第二步：從tblscope表中找出總成績=最高分的那位學生ID*/  
select stuID from tblscope group by stuID having   
sum(Math+English+Computer)=(select  max(Math+English+Computer) from tblscope )  
  
/*第三步：根據最高分查出來的學生stuID再來查詢學生資訊*/  
select stuID,stuName from tblstudent where stuID=  
(select stuID from tblscope group by stuID having   
sum(Math+English+Computer)=(select  max(Math+English+Computer) from tblscope )) 

5．統計男生女生的人數

SQL語句如下：

select stuSex as '性別',count(*) as '人數 'from tblstudent group by stuSex  

恆生電子2016（2018）實習生招聘資料庫試題