Business Intelligence and Data Mining HIT234 Midterm Examination.

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Business Intelligence and Data Mining HIT234 Midterm Examination 19th April 2021 2:00pm – 4:00pm Answer ALL three questions Question 1: Vehicle Database SQL statements (16 points, each question is 2 points) Using the vehicle database in Appendix A, write SQL statements for each of the following queries. a) Write an SQL statement to show the name of the manager.

b) Find the rego numbers of cars that were taken on the 2/09/2011.

c) Find the cars that were used by Employees in the Business Department on 5-9-2011 and sort by cars’ make.

d) Find the number of cars used by number more than 120, excluding those employees who are part of the Information tech department.

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Mid-Term EXAMINATION HIT234 – Database Concepts

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e) Find the name and department of the employees, who have taken a Mitsubishi car between 11/08/2011 and 11/09/2011.

f)

Find the employee names who used the most cars or the least cars.

g) Find the employee/s who returned a vehicle on 15/11/2011.

h) Find the employee/s who taken a vehicle on 02/09/2011 and 12/09/2011.

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Question 2: ER-Diagrams (8 Points) For each of the below scenarios draw a separate E-R diagram including attributes, cardinalities and identifiers when applicable.

1-

Customers identified by a CUST-NAME and have an ADDRESS buy Items from a store. Items are identified by an ITEM-NO and have a DESCRIPTION. The QTY-BOUGHT-OF-AN-ITEM of an item by a customer is recorded. Each customer buys a specific item. (2 points)

2-

Projects are identified by a PROJECT-NO and have BUDGETS. Projects are managed by a department. Each department is identified by a DEPARTMENT-NAME and has a FLOOR-NO. Each department manages at least one project and a project can be managed by 2 department (2 points)

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3-

An order with a unique ORDER-NO and ORDER-DATE can be made for any number of parts (identified by ITEM-NO and with a COLOR). QTYORDERED is the amount of each part ordered. Orders are made to three suppliers (each is identified by a SUPPLIER-NAME and has one ADDRESS). (2 points)

4-

A fault occurs on one item of equipment. A logbook contains FAULT-NO, FAULT-DATE and FAULT-DESCRIPTION. Each item of equipment has a unique EQUIP-NO and an EQUIP-DESCRIPTION and a TYPE. Each such item is in one building, which has a unique BUILDING-NAME and one ADDRESS. (2 points)

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Question 3: E-R Diagrams (6 points) Draw an E-R diagram for the scenario below.

A restaurant chain has several store locations in a city (each store has a name and a zip code), Each store is managed by one manager. Managers manage only one store.

Each restaurant location has its own unique set of menus. Most have more than one menu (e.g., lunch and dinner menus). Each menu has many menu items, and items can appear on multiple menus, and with different prices on different menus.

Appendix A Vehicle Reg No BRG446 VRG655 NMT667 CCT899 FGR122

Make Ford Bmw Madza Toyota Mitsubishi

Model Meteor Coupe Delivery Van HiLuxe Magna

Year 2009 2008 2010 2009 2007

Colour White Blue Green Red Purple

Employee Table Employee_No 118 123 156 166 120 134

FirstName Riley Bryn Anna Justin Sarah Tammy

LastName Griffin Underwood Thanh Brownworth McDonald Hubber

Department Business Information Tech Administration Business Services Manager

Employee Vehicle Table Employee_v eh A12 A13 A14 A15 A16 A17 A18 Semester 1, 2021

Reg No BRG446 NMT667 CCT899 FGR122 BRG446 NMT667 NMT667

Employee_N o 118 156 166 134 118 166 134

Date Taken 1/09/2011 2/09/2011 2/09/2011 3/09/2011 4/09/2011 5/09/2011 11/09/2011

Mid-Term EXAMINATION HIT234 – Database Concepts

Date Returned 3/09/2011 3/09/2011 4/09/2011 5/09/2011 10/09/2011 10/09/2011 15/09/2011 Page 5 of 6

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A19 A20

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FGR122 NMT667

166 118

12/09/2011 14/11/2011

Mid-Term EXAMINATION HIT234 – Database Concepts

15/11/2011 15/11/2011

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