Exercise 1 Pait 1 A Uriversity dotabase contains Inpo abt Propessors Cidentipled by Jocial security number and courses identified by Course id Piopessors teach courses each. the teaching Telationships set For each situation,dhaw an ERD that describes it as no further constrains hold- DFofessons Can teach the same course in several semesters and each offering must be 18corded. UFropessors can teach the same course in several semesters and only the most jecent such offerings need to be Te conded Lassume this condition applies in all subseguent qteti questions 1) Every piopessoy must teach some N Info of the following situations concerns assuming that CouTse M Every professor teaches exactlyy one course ) Every propessor teaches exactly be taught by some professor: V) Suppose that Cettain courses con team of piofessors. jointly but it is possible that no one professo1 in a team Can. teach the courise every course must one Couise and ei be taught by a Can

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