Technology storeData Base Design

Description (1)• A database for a large-scale

technology Store.

• The store has employees - either assistant or in the maintenance team

• Two separate entities with many to many relationship, a manager is not an employee. Every employee is required to be managed by a manager.

• Each order contains items

Description (2)• Items are distributed into

subclasses such as TV, AUDIO, ACCESSORIES, IT, KITCHEN, COMMUNICATIONS with different types of technology

• Items are delivered to the store by different suppliers

• Each item belongs to a brand

• The characteristics of the customers are also recorded

• Attributes of the warehouses are listed in the data base

ER-diagram

Relational

Model

Employee

e_id e_name e_phone e_address

1919 John Smith 7206161812 21 Park Lane, Denver, CO 80506  

2121 Ashley Stewart 7201888787 19 Cleveland Place, Boston, MA 10506

1313 Drake McQuivey 3031883456 17 Lincoln Str, Chicago, IL 12345

1415 Sasha Fierce 7201234567 34 Washington Str, New York NY 23233

2123 Lucy McCartney 3033554545 21 Santa Monica, Paris CO 12323

3454 Brandon Kyler 9010200324 32 Eagle Drive, Broadway 211213

1232 Kris Kennedy 1000000000 345 Mantagnismesto, California 21213

6666 Drew Donaldson 2000000000 345 Mantagnismesto, California 21213

7777 Mason Lockwood 3000000000 123 Ocean City, MD 2342

8888 Jean Grey 4000000000 344 Estes Park, CO 23231

9999 Scott Summers 5000000000 989 Michigan Str, Mystic Falls, VA 2324

1111 Kanye Roberts 6000000000 717 Mintwood, Dark Streets, MA 23234

maintenance

e_id num_of_repairs

1313 40

2123 60

6666 88

assistant

e_id a_type

8888 A

9999 B

1111 A

Manager

MG_ID MG_name MG_phone salary

1919 John Smith 7206161812 hourly

7777 Mason Lockwood 3000000000 monthly

3454 Brandon Kyler 9010200324 monthly

Manages

MG_ID e_id

1919 1232

7777 8888

3454 1111

Example data (1)

Example data (2)

Customer

c_id c_name c_email

9000 Harry Jones harryjones90@gmail.com

8000 East West eastwest80@gmail.com

7000 Jason Peterson jasonpeterson@gmail.com

Itemi_id price qty_left

1 $50 822 $19 323 $20 45

ITi_id i_type

3 computer2 laptop1 ipad

TVi_id tv_size

1 122 153 17

Kitcheni_id k_category

3 robot3 stove2 fridge

Communicationi_id com_type

2 smartphone3 skypephone3 norphone

Accessoriesi_id a_type

2 headphones2 cases1 chargers

Audioi_id au_type

3 cd2 dvd1 blue ray

Ordero_num o_date payment_method e_id c_id

303 15-10-15 cash 8888 9000404 16-10-15 check 9999 8000505 14-10-15 online 1111 7000

Containso_num i_id

303 3404 2505 1

Suppliers_id s_name size s_location55 John Johnson 2324325656 342 Churchill Str, Mount Black, LA66 Kate Kerry 5656474323 234 Green Arrow, Saint Louis, MI 4567777 Fred Mattew 3542342245 121 Red Dots, Salisbury, MD 23234

Providess_id i_id quantity date shipment_size66 3 199 23-10-15 big55 1 345 10-10-15 average77 2 133 21-10-15 normal

Brandb_name popularity market_share country_of_origin i_idApple 7207171234   USA 2

Samsung 3232321321   Korea 3Sony 3121321445   Japan 1

Warehousew_num w_name w_size w_location

123 Old medium USA124 New maximum Belgium125 Archaic minimum Hong Kong

Example data (3)

Stored inw_num i_id

123 3124 1125 2

Normalization All the tables provided are

normalized to be in 3nf

• Babev, Nikolay, Leader• Amgalantuul, Ulsbold, Designer• Pavlova, Ivelina,Designer• Robo, Xhoni, Developer• Zahariev, Nikolay,Developer

Team members

Thank you !!!