問題詳情

7.Consider the following relations PROFESSORS, COURSES and TAUGHT-BY as shown below. Show the SQL statement that creates a new relation containing the course’s CN, teaching professor’s name, and the place. Please draw the ER diagram for the given relations. (20%)

參考答案

答案:B
難度:適中0.63521
統計:A(413),B(1151),C(27),D(28),E(0) #
個人:尚未作答書單:社會性故事、自閉症兒童三階段鑑定

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