*1.查詢”01”課程比”02”課程成績高的學生的信息及課程分數
create table Student(S varchar(10),Sname nvarchar(10),Sage datetime,Ssex nvarchar(10))
insert into Student values(‘01’ , ‘趙雷’ , ‘1990-01-01’ , ‘男’)
insert into Student values(‘02’ , ‘錢電’ , ‘1990-12-21’ , ‘男’)
insert into Student values(‘03’ , ‘孫風’ , ‘1990-05-20’ , ‘男’)
insert into Student values(‘04’ , ‘李雲’ , ‘1990-08-06’ , ‘男’)
insert into Student values(‘05’ , ‘周梅’ , ‘1991-12-01’ , ‘女’)
insert into Student values(‘06’ , ‘吳蘭’ , ‘1992-03-01’ , ‘女’)
insert into Student values(‘07’ , ‘鄭竹’ , ‘1989-07-01’ , ‘女’)
insert into Student values(‘08’ , ‘王菊’ , ‘1990-01-20’ , ‘女’)
create table Course(C varchar(10),Cname nvarchar(10),T varchar(10))
insert into Course values(‘01’ , ‘語文’ , ‘02’)
insert into Course values(‘02’ , ‘數學’ , ‘01’)
insert into Course values(‘03’ , ‘英語’ , ‘03’)
create table Teacher(T varchar(10),Tname nvarchar(10))
insert into Teacher values(‘01’ , N’張三’)
insert into Teacher values(‘02’ , N’李四’)
insert into Teacher values(‘03’ , N’王五’)
create table SC(S varchar(10),C varchar(10),score decimal(18,1))
insert into SC values(‘01’ , ‘01’ , 80)
insert into SC values(‘01’ , ‘02’ , 90)
insert into SC values(‘01’ , ‘03’ , 99)
insert into SC values(‘02’ , ‘01’ , 70)
insert into SC values(‘02’ , ‘02’ , 60)
insert into SC values(‘02’ , ‘03’ , 80)
insert into SC values(‘03’ , ‘01’ , 80)
insert into SC values(‘03’ , ‘02’ , 80)
insert into SC values(‘03’ , ‘03’ , 80)
insert into SC values(‘04’ , ‘01’ , 50)
insert into SC values(‘04’ , ‘02’ , 30)
insert into SC values(‘04’ , ‘03’ , 20)
insert into SC values(‘05’ , ‘01’ , 76)
insert into SC values(‘05’ , ‘02’ , 87)
insert into SC values(‘06’ , ‘01’ , 31)
insert into SC values(‘06’ , ‘03’ , 34)
insert into SC values(‘07’ , ‘02’ , 89)
insert into SC values(‘07’ , ‘03’ , 98)
select a.Sname,b.score 01Score,c.score 02Score from student a,sc b,sc c where a.s=b.s and a.s=c.s and b.c="01" and c.c="02" and b.score>c.score group by a.s;
