CENG547 – Advanced Database Systems

8/3/2019 CENG547 Advanced Database Systems

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PROJECT: Library Book Rent System

1

Mohammad Mjallal

Georges Moubarak


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Introduction

y In this project we chose the topic of Library Book

Rent System which records and organize the work ofbook renting by costumers.

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Tables

Views

Constraints

Triggers

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Tablesy Users

y Coustumers

y

Booksy BookCover

y PublishCompany

y Categories

y Authors

y BookIssue

y Country

y Nationality

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Tables

Views

Constraints

Triggers

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Views:y v_AvgCatRentCost:

This materialized view get the average of rent cost of books in

each category.

y v_CurrentRentedBooks:

This materialized view show books that are currently rented

an

d by who an

d other in

formation

.

y v_Hugebook:

This is an updatable view that show huge books (pages>350).

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Tables

Views

Constraints

Triggers

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Constraints:y Some constraints are done using MS SQL SERVER

Queries, and others are done using the Graphical UserIn

terface code.y For all foreign keys we set the CASCADE rule on delete

and update action.

y Default Value: (issue_on (getdate()) , returned,)

y Greater than Value: ([publish_year]>=(1950)),([pages]>=(10)),

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Tables

Views

Constraints

Triggers

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Triggers:y For Insert Trigger: Q

This trigger was done to all tables and it works in case of multi-rowinsert to check that all rows have been successfully added.

y An instead of trigger that stops us to add a cover to a book notfound. Q

y An instead of trigger that stops us to Rent a book not found or by costumer not found. Q

y 2 triggers are done for Book table: the first stops us to delete abook that is currently rented and the second stops us to decreasethe total time issue numbers. Q

y

2 triggers are don

e for Costumers table: the first stops us to deletea Costumer that is currently rent and the second stops us todecrease the total number of issued book by a costumer. Q

y An instead of trigger that inserts the data into Book table insteadof Huge Book View. Q

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Graphical User Interface Part

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Costumer Administrator

Search for Books

Rent Books

Return Books

add, edit and disable users

manage categories

manage Authors

manage Publish Company

manage Books

view statistics and otherthings

The work in GUI was based on 2 types of users with different actions for each one:


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Costumers Administrator

Change Password

Common Privilege

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Administrator or Not?EnterUsername and

Password

If OK

Check the Attribute is_system inUsers Table

True(1)

False(0)

Administrator Costumer

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Manage Costumers

NewUser/Costumer

Manage Categories

Manage Authors

Manage Publishers

Add/Edit Book

View Statistics

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Edit Costumery

First we select the costumer id that we wan

t to edit:

y Than the current information of selected costumer appear:

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Edit Coustumer Rules

thecoustumer

will beedited

You cant changethe name to

another that isregistered in the

database

Some fields areunchangeablelike the ID andthe number ofbooks issued.

You cant enter anegative credit.

You cant enter aphone number

formed less than7 numbers

If a costumer isdisabled you

should re-enablethe accountbefore edit it


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Disable Coustumery

First we select the costumer id that we wan

t to disable:

y Than the current information of selected costumer appear:

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Disable Coustumer Rule

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thecostumerwill beDisabled

You cant disablea costumer that

is currently

renting at least abook


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New User/Coustumer

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Create LoginAccount

Fill CostumerInformation


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Login Account:

y

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Fill Usernameand password

Check ifusername

already taken

If Not


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Costumer InformationyAfter the first step finishes successfully the page of costumer

information appears:

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Fill Process:

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thecostumerwill be

successfullyadded

All fields are

required

You cant enterthe (name, last

name) of

registeredcostumer

The phonenumber must be

numeric and

formed at leastfrom 7 numbers

The credits mustbe numeric and

positive value


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Manage Coustumers

NewUser/Coustumer

Manage Categories

Manage Authors

Manage Publishers

Add/Edit Book

View Statistics

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ManageCategories

Add

Category

Edit

Category


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Add Category Process:

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EnterCategory

Name

Check ifalreadyexists

If Not


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Edit

Cate

gory Process

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SelectcategoryTo Edit

EnterTheNew Name

Check IfFound If Not


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Manage Coustumers

NewUser/Coustumer

Manage Categories

Manage Authors

Manage Publishers

Add/Edit Book

View Statistics

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ManageAuthors

Add

Author

Edit

Author


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New Author

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Fill AuthorInformation

Check if FullName already

Exists

If Not


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Edit Author

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Edit AuthorInformation

Check if FullName already

Exists

If Not


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Manage Coustumers

NewUser/Coustumer

Manage Categories

Manage Authors

Manage PublishersAdd/Edit Book

View Statistics

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ManagePublishers

Add

Publisher

Edit

Publisher


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Add PublishCompany

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PublishCompany Add Rules

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Publish

Companysuccessfully

added

All fields arerequired

The phonenumber must benumerical andformed at least

from 4 numbers

The fax numbermust be

numerical andformed from 7

numbers

You cant add acompanynamethat is alreadyfound in the

database


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Edit PublishCompany

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PublishCompany Edit Rules

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Publish

Companysuccessfully

edited


The phonenumber must benumerical andformed at least

from 4 numbers

The fax numbermust be

numerical andformed from 7

numbers

You cant add acompanynamethat is alreadyfound in the

database


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Manage Coustumers

NewUser/Coustumer

Manage Categories

Manage Authors

Manage Publishers

Add/Edit Book

View Statistics

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Add/Edit

Books

AddBooks

EditBook

AddQuantity

RemoveQuantity

Edit Cost


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Add Book

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AddBook AddCover


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Add Book

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Add Book Rules

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Booksuccessfully

Added


ISBN must benumerical andnot be found in

the database

Publish yearmust be

numerical andgreat than 1950

Quantity mustbe numericaland positive

Edition mustbe numericaland positive

Volume mustbe numericaland positive

Pages must benumerical andgreat than 10

Rent cost mustbe numerical

and great than5$


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Add Cover

Book Added

Add BookCover?

Yes No

DefaultPicture NoCover

Available willbe added

Select Cover

Cover Added

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Edit Book:Add Quantity

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Book

QuantitysuccessfullyAdded

And If thecurrent

quantity is 0set the

in_inventorybit to True

The quantityto add is arequired

field

The quantityto add must

be numericaland positive


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Edit Book: Remove Quantity

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BookQuantity

successfullyRemoved

And If thenew quantity

is 0 set thein_inventory

bit to false

The quantityto remove is arequired field

The quantityto add must

be numericaland positiveand lower orequal to the

currentquantity


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Edit Book:Edit Cost

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Book Cost

SuccessfullyEdited

The newcost is arequired

field

The newcost must

benumericaland greater

than 5$


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Manage Coustumers

NewUser/Coustumer

Manage Categories

Manage Authors

Manage PublishersAdd/Edit Book

View Statistics

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Statistics

General

Statistics

Search

Statistics


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General Statistics

Current RegisteredCostumers

Current Registered Books

Current RegisteredPublishers

Current RegisteredAuthors

Current Rented History

Average Category RentCost

Current Rented Books

Huge Books

Search Statistics

Max Rented Book

Max Costumer ThatRent

Costumers/Category

Costumers/Publishers

Costumers/Authors

Costumers/Books

Write Query


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Search/Rent Book

Return Book

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Search Rules

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Search Result Appear and you

can see covers

byID andcovers for books

search result

The categoryfiled is required

The title field isoptional and

you can enterthe full or a part

of title


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Rent Rules

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BookSuccessfully

Rented

Can

t ren

t abook 2 timesby the same

user

ValidateBook

ValidateBalance


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Search/Rent Book

Return Book

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Return Rules

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BookSuccessfully

Returned

Get the ID ofcostumer

Get the ID ofbook

If found returnThe book (make

necessaryupdate queries)


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Change Password:

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ConclusionyAs seen in this project the work with SQL server is

easier in GUI and it offers a lot of services that help usin the operation of deployment of any project.

yAlso, using GUI we can make Constraints, Triggers

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Query:B

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Query:B

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Query:B

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Query:B

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Query:B

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Query:B

Documents

CENG547 – Advanced Database Systems