ICT WB by Ka Wah Li

3 （c）

2024-11-25 01:37:17 UTC

查找學生的ID以及學生的課室。

1a)

2024-11-25 01:37:32 UTC

SELECT CNAME FROM CUSTOMER C

INNNER JOIN PORDER P

ON C.CID=P.CID

ORDER BY CNAME;

SELCECT CNAME FROM CUSTOMER

WHERE CID IN

(SELECT CID FROM PORDER)

ORDER BY CNAME;

2024-11-25 01:37:52 UTC

1b)

SELECT SUM (PPRICE) FROM PORDER

WHERE SCODE IN (

SELECT SCODE FROM STATUS

WHERE SDESC = '已送達');

8b

2024-11-25 01:38:58 UTC

select MNAME from MANAGER M

inner join EMPLOYEE E on M.MHKID=E.MHKID

group by MHKID having count(*)<10;

5a)

2024-11-25 01:39:50 UTC

找出擁有超過八本書本的作者

2A

2024-11-25 01:40:29 UTC

Select PRODUCT.NAME, CATEGORY.NAME From PRODUCT LEFT OUTER JOIN CATEGORY ON PRODUCT.CID= CATEGORY.CID;

4b

2024-11-25 01:41:01 UTC

SELECT X.ENAME, Y.ENAME

FROM DEPARTMENT D

INNER JOIN EMPLOYEE X ON D.DID = X.DID

INNER JOIN EMPLOYEE Y ON D.MID = Y.EID

8a)

2024-11-25 01:41:21 UTC

SELECT ENAME, DOE FROM EMPLOYEE ORDER BY DOE

UNION

SELECT MNAME, DOE FROM MANAGER ORDER BY DOE;

6（a）

2024-11-25 01:42:48 UTC

找出1995上映動作片的男演員

7(c)

2024-11-25 01:42:50 UTC

子查詢寫法：

SELECT PNAME FROM PRODUCT WHERE PID IN

(SELECT PID FROM SELL WHERE SID

IN (SELECT SID FROM SHOP WHERE SNAME = '哈利五金' or SNAME = '金厨‘));

Inner join 寫法：

SELECT PNAME FROM SELL SE

INNER JOIN PRODUCT P

ON SE.PID = P.PID

INNER JOIN SHOP SH

ON SE.SID = SH.SID

WHERE SH.SNAME = '哈利五金' or SNAME = '金厨‘;

9(a)

s1191432_1 — 2024-11-25 01:43:16 UTC

create index student_index on STUDENT(SNAME);

4A

2024-11-25 01:44:26 UTC

SELECT ENAME FROM EMPLOYEE

WHERE GENDER = 'F'

GROUP BY DID

HAVING COUNT (*) >= 30 ;

7(a)

2024-11-25 01:44:29 UTC

找出沒有同時購買服裝和傢俬類別的客戶

3a

2024-11-25 01:44:46 UTC

吳老師小明

吳老師小德

杜老師小格

毛老師小物

步老師

Q7 (b)

2024-11-25 01:46:23 UTC

SELECT PNAME FROM PRODUCT

LEFT JOIN SELL ON PRODUCT.PID = SELL.PID

where PRODUCT.PID = NULL;

或

SELECT PNAME FROM PRODUCT

LEFT JOIN SELL ON PRODUCT.PID = SELL.PID

where PRODUCT.PID IS NULL;

5(c)

2024-11-25 01:46:37 UTC

SELECT AUTHORNANE

FROM AUTHOR

WHERE AUTHORID IN

(SELECT AUTHORID FROM BOOK

GROUP BY AUTHORID

HAVING SUM ( PAGE ) >

( SELECT AVG ( PAGE )

FROM BOOK ) ) ;

6c

2024-11-25 01:46:49 UTC

select ANAME from ACTOR a , FILM f , ROLE r where (a.AID=r.AID and f.FID=r.FID) and FTITLE=‘怪獸工資' intersect select ANAME from ACTOR a , FILM f , ROLE r where (a.AID=r.AID and f.FID=r.FID) and FTITLE=‘怪獸中學' );

2b

2024-11-25 01:47:23 UTC

select C.NAME, count(*) from PRODUCT P, CATEGORY C

where (P.CID=C.CID) and (PRICE<=100)

group by P.CID having count(*)>=10;

3(b)

2024-11-25 01:47:25 UTC

SELECT TNAME FROM CLASS WHERE CNAME IN (SELECT CNAME FROM STUDENT WHERE SCORE>= 80);

6 (b)

2024-11-25 01:47:45 UTC

select A1.ANAME, A2.ANAME from ACTOR A1, ACTOR A2

where A1.AGE-A2.AGE>=20 and GENDER='F';

5b)

2024-11-25 01:47:55 UTC

SELECT BOOKNAME FROM BOOK

INNER JOIN AUTHOR

ON BOOK.AUTHORID=AUTHOR.AUTHORID

WHERE ( PAGE<200 )

AND AUTHORID IN(SELECT AUTHORID FROM AUTHOR WHERE YEAR(DOB)<1960) ;

肆乙

2024-11-25 01:56:22 UTC

SELECT X.ENAME, Y.ENAME

FROM DEPARTMENT D

INNER JOIN EMPLOYEE X ON D.EID = X.EID

INNER JOIN EMPLOYEE Y ON D.MID = Y.EID

6c

2024-11-26 01:08:12 UTC

6b

2024-11-26 01:32:12 UTC

SELECT A1.ANAME AS Female_Actor_1,

A2.ANAME AS Female_Actor_2,

ABS(A1.AGE - A2.AGE) AS Age_Difference

FROM ACTOR A1, ACTOR A2

WHERE A1.GENDER = 'F'

AND A2.GENDER = 'F'

AND A1.ANAME <> A2.ANAME

AND ABS(A1.AGE - A2.AGE) > 20;

或

select A1.ANAME, A2.ANAME from ACTOR A1, ACTOR A2

where A1.AGE-A2.AGE>=20 and GENDER='F';

6c

2024-11-26 01:43:35 UTC