数据库原理与应用 考试复习资料整理(2)
时间:2025-04-20
时间:2025-04-20
FROM SRJ
WHERE JNO =’J1’
AND PNO IN
(SELECT PNO
FROM P
WHERE COLOR=’红’)
SELECT SNO
FROM SPJ,P
WHERE JNO=’J1’
AND SPJ.PNO=P.PNO
AND COLOR=’红’
(4) 求没有使用天津供应商生产的红色零件的工程号JNO;
SELECT JNO
FROM J
WHERE NOT EXISTS
(SELECT*
FROM SPJ.JNO=J.JNO
AND SNO IN
(SELECT SNO
FROM S
WHERE SPJ.JNO=’天津’)
AND PNO IN
(SELECT PNO
FROM P
WHERE COLOR=’红’))
或
SELECT JNO
FROM J
WHERE NOT EXISTS
(SELECT*
FROM SPJ,S,P
WHERE SPJ.JNO=J.JNO
AND SPJ.SNO=S.SNO
AND SPJ.PNO=P.PNO
AND S.CITY=’天津’
AND P.COLOR=’红’)
四.数据库设计与查询实现(共20分)
1. 在MS SQL2000中创建数据库, 主文件(. mdf)大小为10MB,日志文件大小为3MB。
数据库将驻留在'C:\Program Files\Microsoft SQL Server\MSSQL\data\S_T.MDF'中。
用SQL语言实现此数据库设计.
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