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What are the results of the following relational algebra operations based on the given tables below? pi_enrolledln.id, code (sigma_name = joe(student enrolledln)) f) pi_name.lecturer(sigma_lecturer =

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What are the results of the following relational algebra operations based on the given tables below? pi_enrolledln.id, code (sigma_name = joe(student enrolledln)) f) pi_name.lecturer(sigma_lecturer = curtis(subject student enrolledIn))

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