将ER图转换为关系模式

时间:2019-02-25 15:53:06

标签: sql database entity-relationship

我有下面的图,并且已经将其转换为关系模式,但是有人可以确认它是否正确。

SportsPlayer (PlayerID, Name, Height, Weight, Age, Gender)
TennisPlayer (PlayerID, TID, ATPPosition)
BasketballPlayer (PlayerID, BID, Score)
FootballPlayer (PlayerID, FID, Score)

Image of the ER diagram

0 个答案:

没有答案