Introduction to Databases*
Homework I L
A
T
E
X
*
Teacher: 张剡. TA: Loading
1
st
张逸凯 171840708
Department of Computer Science and Technology
Nanjing University
zykhelloha@gmail.com
I. E-R模型设计
解:
II. 关系代数
顾客关系C (编号cid, 姓名cname, 城市city, 折扣discnt)
卖方关系A (编号aid, 名称aname, 城市city)
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谢谢老师和助教哥的耐心批改.
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