Figure 2-26 shows a grade report that is mailed to students at the end of each semester. Prepare an ERD reflecting the data contained in the grade report. Assume that each course is taught by one instructor. Also, draw this data model using the tool you have been told to use in the course. Explain what you chose for the identifier of each entity type on your ERD.
Figure 2-26 Grade report
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- Topic: Database Design and Entity Relationship Diagrams Please convert the below diagram to Crow's Foot notation. Here is the relational schema: Relational Diagram (Schema) Position: Position_ID Title Volunteer: Person_ID Gender_ID Occupation Status Notes Position_ID Location: Location_id Location_Name Street_No Street_Name PostalCode Phone CommunityContact: Organization_ID Person_ID Notes Location_ID Event: Event_ID Type Event_Date Location_Name Location_ID VolunteerShift: Shift_ID Start_Time End_Time Event_ID Person_ID Pending: Pending_ID CV Cover_Letter Interview VolunteerClass: VolunteerClass_ID Training_Graduation_Date NonPending: Person_ID Active Date_Inactive VolunteerClass_ID Workshop: Workshop_ID Event_ID Name GuestSpeaker: Event_ID Person_ID Subject_ID GuestSpeakerShift: Event_ID Person_ID Subject_ID Start_Time…arrow_forwardHow to represent associative entity in a relational data model.arrow_forwardA department of the university has a small car, which members of staff may use for work purposes. They need a database to keep track of who uses the car and any related expenses Design a database for recording the information on the staff member who books the departmental car and the date booked and returned, the car mileage and any claims for the fuel, parking and similar related expenses Create an Entity Relation Diagram showing the tables needed and the relationships between tables Create suitable fields for each table and select an appropriate primary key for each table select an appropriate foreign keys to connect the tables. If there is no adequate candidate key create necessary surrogate keys for the appropriate tables. For the tables in figure P3.24 you want to see data on charters flown by either Robert Williams (employee number 105) or Elizabeth Travis (employee number 109) as pilot or copilot, but not charters flown by both of them. Complete Items 3-5 to find this…arrow_forward