CSCI 6315 Applied Database Systems – Exercise (1)

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CSCI 6315 Applied Database Systems – Exercise (1) Xiang Lian The University of Texas Rio Grande Valley Edinburg, TX 78539 xiang.lian@utrgv.edu

ER Diagrams Please draw an ER diagram for the following three tables (entities, relationships, attributes, primary keys, cardinality constraints, etc.) Sailors (sid, sname) Reserves (sid, bid, date) Boats (bid, bname, color)

ER Diagrams (cont'd) Please draw an enhanced ER diagram for entities like undergraduate students, freshman, sophomore, junior, and senior students. For senior students, they have supervisors who supervise their "senior project“ course Please specify the participation and disjoint constraints Please provide relational tables based on the ER diagram you designed above

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