How is Plane_service modeled? Relation and foreign key with single attribute value Relation and two foreign keys Relation Foreign key (or “relationship” relation) One Atomic Attribute Relation with owning entity primary key participating in primary key Not modeled into any relationship Set of simple component attributes Relation and n foreign keys
Added by Jonathan L.
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This typically refers to a service related to planes, such as maintenance, scheduling, or flight services. Show more…
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Salary Shift Model Capacity Weight WORKS_ON EMPLOYEE PLANE_TYPE MAINTAIN Restr Lic_num FLIES PILOT OF_TYPE Date Workcode Date/workcode SERVICE Hours Reg# AIRPLANE PLANE_SERVICE Pdate STORED_IN OWNS OWNER HANGAR CORPORATION Ssn PERSON Number Location Name Phone Capacity Address
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Study the ER diagram for the ship tracking database and convert the diagram into a Relational Model. 1) Guidelines on your ER diagram. 2) Follow all ER-to-Relational Model steps. 3) Ensure you identify all primary keys and foreign keys. 4) The key to this assignment is following the proper ER-Relational Mapping step by step. Please show how the relational model looks after each step.
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Date Time_stamp SHIP_MOVEMENT Time Longitude N Latitude HISTORY Type Tonnage Hull Sname N SHIP TYPE SHIP_TYPE Owner (0,*) Start_date End_date N (1,1) HOME PORT SHIP_AT_PORT PORT_VISIT Continent Name (0,*) N IN STATE/COUNTRY Pname PORT Name N ON SEA/OCEAN/LAKE
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