Author: Anonymous

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What are the attributes of the relation WORKS-ON resulting from mapping the many-many relationship type WORKS-ON?

What is the key of the relation SERVICE resulting when mapping the weak entity type SERVICE?

When mapping the many-many relationship type OWNS, which relation will the attribute Pdate belong to?

Which relational tuple calculus query returns the Cid and Name for clubs that did not have any meetings?

Which of the following relational algebra operators require type compatibility?

You have completed Exam 2.  This is a reminder, if you desire to do so, to review your answers prior to submitting. Otherwise, you may continue to the next question to perform your scratch paper scan.

Which tuples are the result of the following query: