E-R图
2018-11-25 16:32:28 145 举报
登录查看完整内容
Sales模式的S-R图
作者其他创作
大纲/内容
linenumberpartkeysuppkeyquantityextendedpricediscounttaxreturnflag
custkeynameaddressphonenationcomment
regionkeynamecomment
Purchase
Belong to
nationkeynameregionkeycomment
Nation
Region
Customer
included
suppkeynameaddressnationkeycomment
Order
Lineitem
partkeynamemfgrbrandtypesizeretailpricecontainercomment
Supplier
orderkeystatustotalpriceorderdateorderpriorityclerkshipprioritycomment
PartSupp
Part
0 条评论
回复 删除
下一页
