学生成绩同一行显示或者课程安排按照一周星期的显示

SELECT * FROM SCORE

--成绩列表 oracle

SELECT A.*, C.CNAME FROM SCORE A,COURSE C

WHERE A.CNO = C.CNO

SELECT ROWNUM, A.* FROM (

SELECT

A.SNO ,

S.SNAME,

SUM(CASE

WHEN A.CNO = '3_245' THEN

A.DEGREE

ELSE 0

END)CZXI_SC,--操作系统

SUM(CASE

WHEN A.CNO = '3_105' THEN

A.DEGREE

ELSE 0

END)JSJDL_SC,--计算机导论

SUM(CASE

WHEN A.CNO = '6_166' THEN

A.DEGREE

ELSE 0

END)SJDL_SC,--数据电路

SUM(A.DEGREE)Z_SC--总成绩

FROM SCORE A , STUDENT S

WHERE A.SNO = S.SNO

GROUP BY A.SNO,S.SNAME

ORDER BY Z_SC DESC --按照总成绩排名

)A

-------------------------------------------------sqlserver

use adu_test

go

---教师课程表安排，类似于学生成绩的列发，但有些不同

create table course1(

id int ,

teacher varchar(50),

classno varchar(50),

data_time varchar(20)

)

insert into course1 values(1,'甲','1','2015-8-15');

insert into course1 values(2,'乙','2','2015-8-16');

insert into course1 values(3,'乙','4','2015-8-17');

select teacher ,

max(case when data_time = '2015-8-15' then classno+ '班' else ''end) '星期一',

max(case when data_time ='2015-8-16' then classno+'班' else ''end )'星期二',

max(case when data_time ='2015-8-17' then classno+'班' else ''end) '星期三'

from course1 group by teacher