
P70. 6
(1)求供應工程J1零件的供應商號碼SNO
select Sno from SPJ where JNO = ‘J1’
(2)求供應工程J1零件P1的供應商號碼SNO
select SNo from SPJ where Jno = ‘J1’ and PNO = ‘P1’
(3)求供應工程J1零件為紅色的供應商號碼SNO
select SNO from SPJ where PNO IN (select PNO from P where COLOR='紅')
(4)求沒有使用天津供應商生產的紅色零件的工程號JNO
select * from SPJ where SNO IN(select SNO from S where CITY='天津')
and PNO IN(select PNO from P where COLOR='紅')
(5)求至少使用了供應商S1所供應的全部零件的工程號JNO
select * from SPJ where exists(select * from SPJ where SNO='S1')
P130. 5
(1)找出所有供應商的姓名和所在城市
(2)找出所有零件的名稱、顏色、重量
select PNAME,COLOR,WEIGHT from P
(3)找出使用供應商S1所供應零件的工程號碼
select JNO from SPJ where SNO = 'S1'
(4)找出工程項目J2使用的各種零件的名稱及其數量
select P.PNAME AS NAME,count(SPJ.JNO) AS NUM from SPJ,P where SPJ.JNO='J2' and SPJ.PNO = P.PNO group by P.PNAME
(5)找出上海廠商供應的所有零件號碼
select distinct PNO from SPJ where SNO IN(select SNO from S where CITY='上海')
(6)找出使用上海產的零件的工程名稱
select distinct JNO from SPJ where SNO =(select SNO from S where CITY='上海')
(7)找出沒有使用天津產的零件的工程號碼
select distinct JNO from SPJ where SNO not in(select SNO from S where CITY='天津')
(8)把全部紅色零件的顏色改成藍色
update P set COLOR = ‘藍‘ where COLOR = ‘紅’
(9)由S5供給J4的零件P6改為由S3供應,請做出必要的修改
update SPJ set SNO='S3' where SNO='S5' AND PNO='P6'
(10)從供應商關系中刪除S2的記錄,並從供應情況關系中刪除相應的記錄
delete from SPJ where SNO='S2'
delete from S where SNO='S2'
(11)請將(S2,J6,P4,200)插入供應情況關系
insert into SPJ(SNO,JNO,PNO,QTY) values('S2','J6','P4',200)