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lishenyu
Posts: 103
Posted 16:45 Oct 13, 2015 |

Dr Sun

Could you explain one more time , region and party each has only one attribute ,but you still change them to entity set, why? Thanks!

cysun
Posts: 2935
Posted 16:46 Oct 13, 2015 |

Watch the first 10 minutes of the lecture video. It's linked on the class home page.