Project report database of product flow in a fashion shop

Business Narrative The first part that we consider the root of this business is the MANUFACTURER and the SUPPLIERS of the shop, with out these two factors, the shop would not be able to

VIETNAM NATIONAL UNIVERSITY, HANOI

INTERNATIONAL SCHOOL

000

INTERNATIONAL SCHOOL

VIETNAM NATIONAL UNIVERSITY, HANOI!

INS2055 — DATABASE SYSTEMS

PROJECT REPORT DATABASE OF PRODUCT FLOW IN A FASHION SHOP

Group information Phạm Thanh Trường — 20070012 Trần Thị Thu Hà - 20070922 Lecturer

Trần Thị Oanh

Hanoi - 2021

MEMBERS’ CONTRIBUTION

Pham Thanh Truong:

+

+

Case research

Gather real information for the database

Design ERD

Write ERD report

Prepared chapter | of the report

Idealize the relational schema

Build physical database base on relational schema and real data, including writing the sql script and insert some data

Design some useful reports and information for real usage

Conclude the project

Tran Thi Thu Ha:

+

Case research

Gather information for the database

Convert ERD into relational schema

Report about the schema

Insert real data into the sql script

Give out solutions for the useful reports and information for real usage Proofread and edit the report

Abbreviation

ERD

FK

PK

Table of Notations and Abbreviations

Meaning Entity Relationship Diagram Foreign Key Primary Key

List of Tables

v | final

v & Tables |

> customer QOQE’

> © deliver

> si items

> |] manufacturer

> ET second_custome

> shop

>= supplies

In Views

IEIl Stored Procedures

ep Functions

CONTENTS

Chapter 1: INTRODUCTION

Chapter 2: ANALYZING AND DESIGNING THE DATABASE

Chapter 3: SOME USEFUL REPORTS AND INFORMATION

Chapter 4: CONCLUSION

eee QO

Chapter 1: INTRODUCTION

1 About the Organization

Truong Ha fashion shop was first introduced and open for business 2 years ago, most

of the store’s products include clothing and sometimes jewelry, but the jewelry business of the shop was not a success so there will be no data whatsoever included in the system The operation of the store is rather simple, the manager buys items from a trustworthy wholesale partner in China and then puts a tracking and authenticatication tag for after service and to prove that item is a high quality item from our store afterward, the items will be sold to the customer in Vietnam’s region The business also includes collaboration with a certain shipping company

2 Requirement Specification

2.1 Methods for investigating business rules:

It was not hard to figure out the database system of the shop since the owner was a very good friend of mine and our team had 3 types of investigation made to clanfy the data which afterward used by us to build up parts of this final examination

We spent 2 hours everyday for a whole week to interview the owner of the shop, we asked about where the source of her products was, how was that product made, if it was good to use and if it was from trustworthy and high quality facturers and suppliers

After investigating all about the origin and how the items were made, me conducted a research on the shop’s facebook page ad website to find out the way they handle their business with customer, or to be exact, how did they sell their items and if the customer come to the shop directly to buy the items or they buy them online and have them delivered to their house

We found out that the shop is now working only on online platforms since the pandemic brought up a very big safety issue, they decided to close the physical shop until the working environment is safer, this is when we

inspect their shipping collaboration more carefully and put it in our database

After looking at the store’s online platforms and its shipping companions,

we wanted to inspect further in the flow of the 1tems, would there be any other trading activities of goods after it was bought used by the customer or not In this investigation, we found out the shop supported its clients to buy and trade theirs good after buying it by establishing a trading and reselling

collaboration seen in this part, the customer can offer and deal and trade freely with the website playing the role of a midman to verify the authenticity of the product

3 Business Narrative

The first part that we consider the root of this business is the MANUFACTURER and the SUPPLIERS of the shop, with out these two factors, the shop would not be able to operate, the MANUFACTURER has its name and address to prove that this is a good and verified source of item, then the MANUFACTURER contact with its wholesale partner who will resell to the retail shop — the SUPPLIERS and each supplier will have its own number symbolize for the priority to buy better goods, which SUPPLIER have lower number in the MANUFACTURER’; list will have the better chance to buy good items Many SUPPLIERS provide many ITEMS which have authenticity code and proof of origin And through the SHOP, the ITEMS will be DELIVERED to CUSTOMERS by SHIPPERS who are bound to the SHIPPING COMPANY Afterwards, the CUSTOMERS can through the trading platform, trade the goods to 2NDCUSTOMERS

Chapter 2: ANALYZING AND DESIGNING THE DATABASE

ERD

To draw an erd, we must first find out all the strong entities and theirs attributes, firstly the strong entities can be observed are MANUFACTURER have attribute name and address, SUPPLIERS have attribute number and phone number, ITEMS have attribute code and ongin, SHIPPING COMPANY have attribute shipping code and delivery code, CUSTOMERS have attribute name, address and phone number and finally 2ND CUSTOMERS have attribute name, address and phone number For the part of relationships between them, MANUFACTURER to SUPPLIERS will be one must to maybe many since there must be manufacturer

as the source and that source may sell to many suppliers and for the rest of the strong entities, the relationships between them all are many maybe to many maybe since many suppliers provide many 1tems and those items may be shipped

to many customers by many shipping company such as GHTK or Be or Extra Shipping and so on and many customers can also trade to many second

customers

After expanding the erd, we can see some more weak entities added in between all the many to many relationships first we have the SHOP weak entities after the expansion of suppliers and items many to many relationship since supplier have

to go through shop and the shop will sell items, the shop entity have attribute is its name Followed by the expansion of shipping company and items many to many relationship is the appearance of the weak entity DELIVER since items must be delivered to the shipping company in order to be shipped to the customers, this leads to the appearance of weak entity SHIPPER when expanding many to many relationship of shipping company and customers

Relational Schema

Firstly, we will list, select the filter information that must be given

Next, we define the files and relationships between the implementation collectives

For example, in my ERD, we have:

One MANUFACTURER can have a lot of SUPPLIERS

From SUPPLIERS we can add more unimportant entity 1s weak entity - SHOP One SUPPLIERS and One ITEMS can have a lot of SHOP

From ITEMS we can add more unimportant entities that are weak entities - DELIVER

One ITEMS may have a lot of DELIVER

One SHIPPER may have a lot of DELIVER

From SHIPPER we can add more unimportant entity is weak entity - SHIPPING COMPANY

One SHIPPER may have a lot of SHIPPING COMPANY

One CUSTOMER may have a lot of SHIPPING COMPANY

From CUSTOMER we can add more unimportant entity is weak entity - RESELLER

One CUSTOMER may have a lot of TRADING

2NDCUSTOMER may have a lot of TRADING

The next step is to define attributes like primary key, foreign key and bind the attribute for the file and relationship

For example, in my ERD, we have:

Primary key:

Primary Key (Manufacturer Name)

Primary Key (Supplier_ Number)

Primary Key (Item_Code)

Primary Key (Shipping Code)

Primary Key (Customer_Name)

Primary Key (Second Customer Name)

Forgein key:

Foreign Key (Manufacturer_Name) references SUPPLIERS

Foreign Key (Item _Code) references ITEMS

Foreign Key (Supplier_ Number) references SUPPLIERS

Foreign Key (Shipping Code) references SHIPPING COMPANY

Foreign Key (Customer_Name) references CUSTOMER

Foreign Key (Second Customer Name) references SECOND CUSTOMER Finally, draw an ERD diagram that identifies the type associations of the jobs performed in the schema

3 Some real data and SQL scripts

INSERT INTO ITEMS VALUE (01, ‘blue dress'; 'Chỉna'};

INSERT INTO SHOP VALUE (‘TruongHaFashion’, @5 , @5) 5

INSERT INTO SHOP VALUE (‘TruongHaFashion’, 06 , 96) 5

INSERT INTO SHOP VALUE (‘TruongHaFashion's » 08) 5

INSERT INTO SHOP VALUE (‘TruongHaFashion', @3 ; 89) ÿ

‘elegant pants’, ‘China')5 INSERT INTO ITEMS VALUE (6, ‘a pair of glasses’, ‘China'); INSERT INTO ITEMS VALUE (97, ‘blue pink dress’, ‘China');

INSERT INTO ITEMS VALUE (8, ‘pink blue shirt’, ‘China');

INSERT INTO ITEMS VALUE (09, ‘mini short skirt’, China’);

INSERT INTO SHOP VALUE ("TruongHaFeshion’, 06 ; 12) 3 INSERT INTO ITEMS VALUE (12, ‘a pair of sunglasses’, China’);

INSERT TNTO SHOP VALUE ('TruongHaFashioR'; 82 ; 37) š IneeRT INTO ITEMS VALUE (17, ‘elegant hat'; 'Chỉna')s

INSERT INTO SHOP VALUE (‘TruongHaFeshion’, 04 , 19) 5

INSERT INTO ITEMS VALUE (19, ‘high priestest dress’, ‘China’); INSERT INTO ITEMS VALUE (2@, ‘pink blouse’, ‘China’)5

INSERT INTO SHOP VALUE (‘TruongHaFashion’, @5 , 20) 5

INSERT INTO SUPPLIERS VALUE (@1, 0123456789, ‘Anh Tiến'; 'Nhà máy dệt Phuong Déng');

Chapter 3: SOME USEFUL REPORTS AND INFORMATION

Design some useful reports and information for real usage

Show item list and quantity of each item

Find out the authenticity code and origin of time

sort out the items by alphabet

Show information of customers

delete some customers information

delete some items information

find out which shipper delivered item

find out which supplier provided what item

Count the number of shippers of each company

Show information of 2nd customer

Solutions for the above reports/information

#1

SELECT Item_Name, COUNT(Item_Name) AS "So luong"

FROM ITEMS

GROUP BY Item_Name;

#2

select Item_Code, Origin from items;

#3

select * from items order by item_name;

#4

select customer_name, customer_phone_number from customer;

#5

delete from customer where customer_name like '%oanh%';

#6

delete from item where item_code > 10;

#7

select s.shipper_ code, d.item_code from shipper s inner join deliver d

on s.shipping_code = d.shipping_code;

#8

select s.supplier_name, Litem_name from suppliers s

inner join shop sl

on s.supplier_number = sl.supplier_number

inner join items i

on sl.item_code = Litem_code;

#9

select s.shipping_ code, count(*) from shipper s inner join

shipping_company c

on s.shipping_ code = c.shipping code

group by s.shipping_ code;

#10

select Second_Customer_Name, Second_Customer_Address,

Second_Customer_Phone_Number from SECOND_CUSTOMER ;

Chapter 4: CONCLUSION

To conclude the project, I hereby summarize some of the plus points and also the downsides of the database built by our group as follows:

1 Advantages of the project to the business:

+

+

The database provides the business a clearer view of what they are doing and how many partners they are working with

The database provides a much more scientific way of managing the amount of items and which item is available

The database provides a clearer view of the flow of product - from the store to its customer then to the second customer

ERD provides the business a better view of relations between all of the subjects

The database provides a better way to audit the shop’s data compared to pens and papers

2 The downside of the database can be observed as follows:

+ There are not many types of data that can be inserted in for example there

is no option of entering price of the shop’s items, there is no option for checking the time when item arrived at the shipping company and so on

+ This database lacks real information, there are only 20 samples for each table, not more, it would be better for the real business if there was more information

+ This database lacks options for auditing the items that customers buy and also the quantity bought by them

This project will help the business a big deal in storing data and manage the basic data but not very ideal for auditing