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