Assignment 2 1622 Database Design Development Distinction

This exercise scores Distinction in database programming. This exercise demonstrates how to code a database, database query syntax, and ways to normalize data while developing a system in Microsoft SQL.

ASSIGNMENT 2 FRONT SHEET

Unit number and title Unit 04: Database Design & Development

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2.1

2.2

Table of Contents

A Introduction 9

B Task 1: Develop the database system 9

1.1 Final Mock-up of the application 9

1.2 Queries to create database with results 26

1.3 Database maintenance features and system security 34

a Maintenance features 35

b System security 35

C Task 2: Produce queries 37

2.1 Queries to INSERT data with illustrations of final result 37

2.2 Queries to UPDATE data with illustrations of final result 42

2.3 Queries to DELETE data with illustrations of final result 42

2.4 Queries to SELECT data with illustrations of final result 44

2.5 Advanced queries: Stored procedures, triggers, functions 47

a Stored Procedures 47

b Triggers 49

DML triggers 50

DDL triggers 52

c Functions 53

2.6 Evaluate the effectiveness of the database solution and improvements 54

a Effectiveness of database solution 54

b Improvements 56

D Task 3: Test the system 57

3.1 Test cases 57

a Test plan and test result 57

b Overall evaluation of testing part 61

3.2 Flowchart to show how the system works 61

a System flowchart 61

b Insert information flowchart 63

c Update information flowchart 64

d Delete information flowchart 65

3.3 Produce technical and user documentation 66

3.3.1 Produce technical 66

a Introduction 66

b ERD 66

3.3.2 User documentation 68

3.4 Evaluate any future improvements to ensure the continued effectiveness of the database system 77

a Scalability 77

b Security 77

c Monitor performance 78

d Data backup 80

e User interface and usability 81

f Integration with other systems 81

E Conclusion 86

Table of Figures

Figure 1: Login interface 10

Figure 2: Register interface 11

Figure 3: Main layout 12

Figure 4: Menu of view option 13

Figure 5: View Customer List Layout 14

Figure 6: View Staff List Layout 15

Figure 7: View order list layout 16

Figure 8: View Product List Layout 17

Figure 9: Menu of add options 18

Figure 10: Add new Staff layout 19

Figure 11: Add New Customer Layout 20

Figure 12: Add new Order Layout 21

Figure 13: Add New Product Layout 22

Figure 14: Menu of Update options 23

Figure 15: Update Customer layout 24

Figure 16: Menu of Statistic options 25

Figure 17: Create Database of system 26

Figure 18: Create schemas of system 26

Figure 19: Create Brands table 26

Figure 20: Create Categories table 27

Figure 21: create Products table 27

Figure 22: Create Discounts table 28

Figure 23: Create Customers table 28

Figure 24: Create Staffs table 29

Figure 25: Create orders table 29

Figure 26: Create OrderItems table 30

Figure 27: Result of creating table 31

Figure 28: Table Brands 31

Figure 29: Table Categories 31

Figure 30: Table Products 31

Figure 31: Table Discounts 32

Figure 32: Table Customers 32

Figure 33: Table Staffs 33

Figure 34: Table Orders 33

Figure 35: Table OrderItems 33

Figure 36: Final diagram 34

Figure 37: Create user login of system and result 35

Figure 38: Queries to create roles Manager and Staff to access 36

Figure 39: Role access of Staff 36

Figure 40: Role access Manager 37

Figure 41: Queries to insert table Brands and result 38

Figure 42: Queries to insert table Categories and result 38

Figure 43: Queries to insert table Products and result 39

Figure 44: Queries to insert table Customer and result 39

Figure 45: Queries to insert table Discount and result 40

Figure 46: Queries to insert table Staffs and result 40

Figure 47: Queries to insert table Orders and result 41

Figure 48: Queries to insert table OrderItems and result 41

Figure 49: Data before update 42

Figure 50: Queries to update data 42

Figure 51: Data after update 42

Figure 52: Data before delete 43

Figure 53: Queries to delete 43

Figure 54: Data after delete 43

Figure 55: Queries to staff's information and result 44

Figure 56: Queries to Customer's information and result 44

Figure 57: Queries to Order's information and result 45

Figure 58: Queries to all Discount code and result 45

Figure 59: Queries to product's information and result 46

Figure 60: Queries to items of order and result 46

Figure 61: Queries top 5 the good staffs last year and result 47

Figure 62: Queries to top 5 most purchased customer last year and result 48

Figure 63: Queries to top 5 most popular produtcs 49

Figure 64: Create table to contain change customer's information 50

Figure 65: DML trigger to monitor insert, update delete actions of Customer 51

Figure 66: Test and result of DML trigger 51

Figure 67: create table to contain change customer's information 52

Figure 68: create DDL trigger to display in ChangeLogs table 52

Figure 69: Test and result of DDL trigger 53

Figure 70: Create function fn_FindManageInfo to find the number of staffs each manager holds 54

Figure 71: Result function 54

Figure 72: Create index to improve system 56

Figure 73: Test index 57

Figure 74: Flowchart of system 62

Figure 75: Flowchart add information in tables 63

Figure 76: Flowchart update information in tables 64

Figure 77: Flowchart delete information in tables 65

Figure 78: ER diagram 67

Figure 79: User doc 01 68

Figure 80: User doc 02 69

Figure 81: User doc 03 70

Figure 82: User doc 04 71

Figure 83: User doc 05 72

Figure 84: User doc 06 73

Figure 85: User doc 07 74

Figure 86: User doc 08 75

Figure 87: User doc 08 76

Figure 88: Use firewall to security 77

Figure 89: SQL Server profiler 78

Figure 90: Connect SQL Server Profiler 79

Figure 91: Fill information trace 79

Figure 92: Event trace 80

Figure 93: Back up my data 80

Figure 94: Back up data of this system 81

Figure 95: Connect this database with visual studio 82

Figure 96: Connect data successfully 83

Figure 97: Query data product by C# 85

Figure 98: Result data of product in console application 86

A Introduction

In this assignment, an online shop system database was implemented on SQL server using query language This database offers, permits changing, removing, and entering important information to manage the shop such as customer and staff personal information, login, product information, and discount code It is also equipped with data to assist administrators in managing and monitoring the store's status A comprehensive mock-up, as well as a relational database, has been

developed and exhibited here Bugs are also fixed by testing Lastly, a technical database was created to assist users in utilizing this system based on the mock-up

B Task 1: Develop the database system

1.1 Final Mock-up of the application

In the first report, I thoroughly examined the FPT shop's users and features A comprehensive blueprint of the system was created based on the existing mock-up designs from the previous assignment In order to design and enhance the system, I created a user interface in this report that combines the system's functionalities The FPT shop system interfaces are as follows:

• The first is the system's login interface, which includes a login and sign-up button:

Figure 1: Login interface

• The next is register interface:

Figure 2: Register interface

• The main interface of the system, including 4 main functions view, add, update, and statistics

Figure 3: Main layout

• When the user clicks the view button, the following UI appears Items related to Staff information, Product information, Order information, Customer information, and so on will be shown, with users able to inspect information by clicking on the option

Figure 4: Menu of view option

• When the user selects Customer List, the interface will appear like this

Figure 5: View Customer List Layout

• When the user selects Staff List, the interface will appear like this

Figure 6: View Staff List Layout

• The same is true of the Product List and Order List By hitting the Back button on each interface, the user will be able to return to the previous screen

Figure 7: View order list layout

Figure 8: View Product List Layout

• This is the UI that shows when the user clicks the Add button Users can input relevant information by clicking on options Items that lead to more information about the Staff, Customers, products, and so on will be shown

Figure 9: Menu of add options

• When the user hits Add Staff, the required information will be displayed After entering the necessary information, the user will click the Add button to complete the task

Figure 10: Add new Staff layout

• Customer, Product, Order are all examples of information that may be added

Figure 11: Add New Customer Layout

Figure 12: Add new Order Layout

Figure 13: Add New Product Layout

• When the user clicks the Update button, the following UI appears Items related to Staff information, Product information, Order information, Customer information, to edit information by clicking on the option

Figure 14: Menu of Update options

• When the user hits Update Customer, the required information will be displayed After entering the necessary information, the user will click the Update button to complete the task Cases like Staffs, Order, Product are similar

Figure 15: Update Customer layout

• This is the UI that shows when the user clicks the Stats button The statistics and other actions of the system will

be shown Users can choose View or Update for new updates

Figure 16: Menu of Statistic options

1.2 Queries to create database with results

The query that builds the table will establish a database system based on the designs authorized by the CEO The database is created as the first stage in constructing the system

The database is created as the first stage in constructing the system I use Create Table statement to create table of system

Figure 17: Create Database of system

I'll design two schemas, sales and production, to partition the system into two distinct levels

Figure 18: Create schemas of system

Next to, as shown in the design, we must construct the data tables

Figure 19: Create Brands table

Figure 20: Create Categories table

Figure 21: create Products table

Figure 22: Create Discounts table

Figure 23: Create Customers table

Figure 24: Create Staffs table

Figure 25: Create orders table

Figure 26: Create OrderItems table

The primary and foreign key constraints have been appropriately named, along with the unique constraint I use

update/delete cascade to show the relationship between parent-child tables This mean that allow to delete or update rows

in the child table corresponding to the deleted or updated row in the parent table The following is the results of the newly created tables:

Figure 27: Result of creating table

Figure 28: Table Brands

Figure 29: Table Categories

Figure 30: Table Products

Figure 31: Table Discounts

Figure 32: Table Customers

Figure 33: Table Staffs

Figure 34: Table Orders

Figure 35: Table OrderItems

Figure 36: Final diagram

1.3 Database maintenance features and system security

b System security

o For this part, I will create 2 users: Staff and Manager to assign access rights to the system

Figure 37: Create user login of system and result

o Next, I will assign user permissions Each manager can access the system to read statistics as well as perform insert, update, select, and delete operations in the tables Employees only have access to the orders table and Customers table to insert and select Employees do not have the right to delete information in these tables

Figure 38: Queries to create roles Manager and Staff to access

The login account has the role of Member, so it only has permissions in the orders and customers table.

Figure 39: Role access of Staff

The login account has the role of Manager, so it only has permissions in all tables.

Figure 40: Role access Manager

C Task 2: Produce queries

2.1 Queries to INSERT data with illustrations of final result

Following the construction of the tables, we will enter the initial data information into the tables I use insert into statement

to insert data as follows:

Figure 41: Queries to insert table Brands and result

Figure 42: Queries to insert table Categories and result

Figure 43: Queries to insert table Products and result

Figure 44: Queries to insert table Customer and result

Figure 45: Queries to insert table Discount and result

Figure 46: Queries to insert table Staffs and result

Figure 47: Queries to insert table Orders and result

Figure 48: Queries to insert table OrderItems and result

2.2 Queries to UPDATE data with illustrations of final result

If any information is incorrect or has to be corrected throughout the data entry process, I will use the Update statement to fix data it

Example: Admin wants to edit customer's information of PhoneNumber = 0974123452 with new information in name, email, etc I use the query as the following:

Figure 51: Data after update

2.3 Queries to DELETE data with illustrations of final result

If an Admin decides to quit or the FPT store wishes to remove a Product from the menu during the administration process,

the system has the ability to delete that data using the Delete statement

Example: Manager want to delete information of ProductId = 2, I use the query as following:

2.4 Queries to SELECT data with illustrations of final result

The first step is to query the employee's information I use the select from statement, in this query I use the self-join type to allow the Staffs table to connect to itself

Figure 55: Queries to staff's information and result

Then is to query the employee's information following as:

Figure 56: Queries to Customer's information and result

To query information about orders, I use type inner join to connect 3 tables Orders, Customers and Staffs together, order by command is used to sort information by latest creation date

Figure 57: Queries to Order's information and result Next is the query for discount codes:

Figure 58: Queries to all Discount code and result

To query information about products, I use type inner join to connect 3 tables Products, Brands and Categories together

Figure 59: Queries to product's information and result

To query information about orders, I use type inner join to connect 3 tables OrderItems, Products and Discounts together, I will use function sum to calculate total and the group by clause to group the data, order by to sort information total payment

Figure 60: Queries to items of order and result