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某供应商关系模式为: Provider(PID,Pname,Tel,GoodsID,GoodsClassID,GoodsName,GoodsPrice)该关系模式应满足如下函数依赖: PID→Pna...

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FOREIGN KEY  PRIMARY KEY  FOREIGN KEY(Sno) REFERENCES S  FOREIGN KEY(Pno) REFERENCES P  
PRIMARY KEY(SnREFERENCE S(Sn,FOREIGN KEY(PnREFERENCES P(Pn  FOREIGN KEY(SnREFERENCE S(Sn,PRIMARY KEY(PnREFERENCES P(Pn  FOREIGN KEY(SnREFERENCE S(Sn,FOREIGN KEY(PnREFERENCES P(Pn  PRIMARY KEY(SnREFERENCE S(Sn,PRIMARY KEY(PnREFERENCES P(Pn  
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(PID,GoodsName)  (PID,GoodsClassI  (PID,GoodsI  (PID,GoodsPrice)  
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