CS 352

Database Management Systems Term Project

DESIGN REPORT

Car Rental Database System

GroupID 13Cartal

http://code.google.com/p/cartal/

Murat Nalçakan Utku Can Yücel Dilara Tara Şahintepe

20800182 20702222 20802578 m_nalcakan@ug u_yucel@ug sahintepe@ug

28.03.2011

Revised ER Diagram...................................................................................................................3

FDs , Normalization of Tables and Relations.............................................................................4

Functional components.............................................................................................................10

Graphical user interface and corresponding queries.................................................................10

List possible cars for customer.........................................................................................10

Make a reservation for a specific car in specified dates...................................................11

Show Selected Costumers Details and Past Actions.........................................................13

Confirm a reservation as reserved.....................................................................................14

Add a new branch.............................................................................................................14

Add new car to a branch...................................................................................................15

Sign up for a new customer..............................................................................................16

Delete a car from specific branch.....................................................................................16

List all staff.......................................................................................................................17

Update car price................................................................................................................17

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1- Revised ER DiagramRevised version of our ER diagram is provided below. It is logical to overview the relations before reaching detailed descriptions of the relations.

Figure 1 Revised ER Diagram

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2- FDs , Normalization of Tables and RelationsADDRESS(

addressid INTEGER DEFAULT 0 NOT NULLzipcode INTEGER DEFAULT 0 NOT NULLcity CHAR(10) NOT NULLdetailedaddress VARCHAR(50) NOT NULLphoneno INTEGERPRIMARY KEY(addressid))

Functional Dependencies: noCandidate Key: (addressid)Normal Form 3NF

PERSON(TCidno INTEGER NOT NULLname CHAR(20) NOT NULLage INTEGER NOT NULLPRIMARYKEY TCidnoFOREIGN KEY (addressid) REFERENCES ADDRESS (addressid))

Functional Dependencies: TCidno TCidno addressidCandidate Key: TCidnoNormal Form : 3NF

SALESMAN(staffid INTEGER NOT NULLbranchid INTEGERTCidno INTEGER name CHAR(20)age INTEGER PRIMARY KEY (staffid)FOREIGN KEY (branchId) REFERENCES BRANCH(id)FOREIGN KEY (TCidno) REFERENCES PERSON(TCidno)FOREIGN KEY (name) REFERENCES PERSON(name)FOREIGN KEY (age) REFERENCES PERSON(age)FOREIGN KEY (addressid) REFERENCES PERSON(addressid))

Functional Dependencies: staffid name ageCandidate Keys: staffid, TCidno Normal Form: 3NF

DRIVER(staffid INTEGER NOT NULL,branchid INTEGER,TCidno INTEGER ,name CHAR(20),age INTEGER ,PRIMARY KEY (staffid),FOREIGN KEY (branchId) REFERENCES BRANCH(id),FOREIGN KEY (TCidno) REFERENCES PERSON(TCidno),

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FOREIGN KEY (name) REFERENCES PERSON(name),FOREIGN KEY (age) REFERENCES PERSON(age),FOREIGN KEY (addressid) REFERENCES PERSON(addressid))

Functional Dependencies: staffid name ageTCidno name age

Candidate Keys: staffid, TCidno Normal Form: 3NF

CUSTOMER(customerid INTEGER not nullname CHAR(20)age INTEGER TCidno INTEGERPRIMARY KEY (customerid)FOREIGN KEY (name) REFERENCES PERSON(name)FOREIGN KEY (age) REFERENCES PERSON(age)FOREIGN KEY (TCidno) REFERENCES PERSON(TCidno))

Functional Dependencies: customerid name ageTCidno name age

Candidate Keys: staffid, TCidno Normal Form: 3NF

PAYMENT(payment_id INTEGER DEFAULT 0payment_type CHAR(5),payment_date DATEremaining_amount INTEGERbooking_no INTEGERPRIMARY KEY (payment_id)FOREIGN KEY (booking_no) REFERENCES BOOKING(booking_no))

Functional Dependencies: payment_id remaining_amount payment_type payment_datepayment_id booking_no

Candidate Keys: payment_id Normal Form: 3NF

BOOKING(booking_no INTEGER NOT NULLauto_id INTEGER DEFAULT 0 payment_id INTEGER DEFAULT 0booking_status CHAR(5) DEFAULT “rsrvd”pickup_date DATE,pickup_branch_id INTEGERdropoff _date DATE,dropoff_branch_id INTEGERPRIMARY KEY (booking_no)FOREIGN KEY (payment_id) REFERENCES PAYMENTFOREIGN KEY (pickup_branch_id) REFERENCES BRANCH

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FOREIGN KEY (dropoff_branch_id) REFERENCES BRANCH)

Functional Dependencies: booking_no auto_id payment_id pickup_payment_id booking_no

Candidate Keys: (booking_no) (auto_id, payment_id)Normal Form: 3NF

BRANCH(branchid INTEGER not null,branchname CHAR(50) not null,addressid INTEGER not null,autoid INTEGER,detailed address CHAR(500),PRIMARY KEY (branchid),PRIMARY KEY(branchname),PRIMARY KEY(addressid),FOREIGN KEY(autoid) REFERENCES AUTO(autoid),FOREIGN KEY(detailed address) REFERENCES ADDRESS(detailed address),

)Functional Dependencies: branchid->autoidCandidate Key: branchidNormal Form: 3NF

AUTO(modelyear INTEGER,lastbookingno INTEGER,autocolor CHAR(20),brandname CHAR(20),modelname CHAR(30),autoid INTEGER,actiondate CHAR(30),servicedetail CHAR(500),insuranceCompany CHAR(50),branchid INTEGER,PRIMARY KEY(modelyear),PRIMARY KEY(lastbookingno),PRIMARY KEY(autocolor),PRIMARY KEY(brandname),PRIMARY KEY(modelname),PRIMARY KEY(autoid),FOREIGN KEY(actiondate) REFERENCES HISTORY(actiondate),FOREIGN KEY(servicedetail) REFERENCES SERVICECHECK(servicedetail),FOREIGN KEY(insuranceCompany) REFECENCES

ISURANCECOMPANY(Insurance Company),FOREIGN KEY(branchid) REFERENCES BRANCH(branchid),

)Functional Dependencies: autoid->branched actiondate InsuranceCompany

autoid brandname->servicedetailCandidateKeys: autoid brandnameNormal Form: 3NF

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HISTORY(autoid INTEGER,actiondate CHAR(30),Serviceno INTEGER,PRIMARY KEY(autoid),PRIMARY KEY(actiondate),FOREIGN KEY(Serviceno) REFERENCES REPAIRJOB (Serviceno),

)Functional Dependencies: autoid->ServicenoCandidate Keys: autoidNormal form: 3NF

REPAIRJOB(Serviceno INTEGER,ServiceName CHAR(30),ServiceFee INTEGER,Autoid INTEGER,PRIMARY KEY(Serviceno),PRIMARY KEY(ServiceName),PRIMARY KEY(ServiceFee),FOREIGN KEY(autoid) REFERENCES HISTORY (autoid),

)Functional Dependencies: Serviceno->autoidCandidate Keys: ServicenoNormal Forms: 3NF

ACCIDENT(Acdetails CHAT(500),Accplace CHAR(50),Customerid INTEGER,autoid INTEGER,PRIMARY KEY(Accdetails),PRIMARY KEY(Accplace),PRIMARY KEY(Customerid),FOREIGN KEY(autoid) REFERENCES HISTORY(autoid),

)Functional dependencies: Accplace->autoidCandidate Keys: AccplaceNormal Forms: 3NF

SERVICECHECK(NextCheckDate INTEGER,Serviceid INTEGER,ServiceDetail CHAR(500),Autoid INTEGER,PRIMARY KEY(NextCheckDate),PRIMARY KEY(Serviceid),PRIMARY KEY(ServiceDetail),FOREIGN KEY(autoid) REFERENCES AUTO(autoid),

)

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Functional Dependencies: Serviceid->autoidCandidate Keys: ServiceidNormal Forms: 3NF

INSURANCECOMPANY(InsuranceCompany CHAR(50),Amount INTEGER,Autoid INTEGER,PRIMARY KEY(InsuranceCompany),PRIMARY KEY(Amount),PRIMARY KEY(Autoid),

)

Does(customerid(6) not null,payment_id (6) not null,PRIMARY KEY (customerid),FOREIGN KEY (customerid) REFERENCES Customer(),FOREIGN KEY (payment_id) REFERENCES Payment( id),

)Candidate Keys: (customerid payment_id)Normal Form: 3NF

Requires(payment_id INTEGER(6) not null,bookingno INTEGER(6) not null,PRIMARY KEY ( payment_id ,bookingno),FOREIGN KEY (payment_id ) REFERENCES Payment(id),FOREIGN KEY (bookingno) REFERENCES Booking(bookingno),

)Candidate Keys: (payment_id bookingno)Normal Form: 3NF

Makes(customerid INTEGER(6) not null,bookingno INTEGER(6)not null,PRIMARY KEY(customer id, bookingno),FOREIGN KEY (customerid ) REFERENCES Customer(id),FOREIGN KEY (bookingno ) REFERENCES Booking(bookingid)

)Candidate Keys: (customerid,bookingno)Normal Form: 3NF

Confirms (staffid INTEGER(6)not null,bookingno INTEGER (6) not null,PRIMARY KEY (staffid, bookingno),FOREIGN KEY (staffid) REFERENCES Salesman( id) , FOREIGN KEY (bookingid) REFERENCES Booking(bookingid)

)Candidate Keys: (staffid, bookingno)

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Normal Form: 3NF

has(staffid INTEGER(6) not null,branchid INTEGER (6) not null,PRIMARY KEY (staffid, branchid) , FOREIGN KEY (staffid) REFERENCES Person(staffid),FOREIGN KEY (branchid) REFERENCES Branch(branchid)

)Candidate Keys: (staffid,branchid)Normal Form: 3NF

Stay(staffid INTEGER(6) not null,addressid INTEGER(6) ,PRIMARY KEY(staffid),FOREIGN KEY (staffid) REFERENCES Person(staffid),FOREIGN KEY (addressid) REFERENCES Address(addressid),

)Candidate Keys: (staffid)Normal Form: 3NF

Located(addressid INTEGER(6),branchid INTEGER(6)not null,PRIMARY KEY(addressid,branchid),FOREIGN KEY (addressid) REFERENCES Address(addressid),FOREIGN KEY (branchid) REFERENCES Branch(branchid),

)Candidate Keys: (addressid)Normal Form : 3NFWorks For(

staffid INTEGER,branchid INTEGER,PRIMARY KEY(staffid, branchid)

)Candidate KEys: staffid,branchidNormal Form: 3NF

Owns(branchid INTEGER,autoid INTEGER,PRIMARY KEY(autoid,branchid),FOREIGN KEY (autoid) REFERENCES AUTO(autoid),FOREIGN KEY (branchid) REFERENCES Branch(branchid),

)Candidate Keys: branchid,autoidNormal Forms: 3NF Has(

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autoid INTEGER,PRIMARY KEY(autoid),

)

Needs(NextCheckDate INTEGER,Serviceid INTEGER,autoid INTEGER,PRIMARY KEY(autoid, NextCheckDate, Serviceid),

)Candidate Keys: autoid, NextCheckDate, ServiceidNormal Forms: 3NF Insuaredby(

ExpirationDate INTEGER,Autoid INTEGER,InsuranceCompany INTEGER,PRIMARY KEY(ExpirationDate),FOREIGN KEY(Autoid) REFERENCES AUTO(autoid),FOREIGN KEY(InsuranceCompany) REFERENCES

INSURANCECOMPANY(InsuranceCompany))Candidate KEys: Autoid, InsuranceCompanmyNormal Forms: 3NF

3- Functional components

3.1 Use Case Diagram

There will be two types of users in our system. We will only allow Customers and Branch Staffs to use system.

Figure 2 Use Case Diagram

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3.2 Algorithms

There will be two different algorithms which will be used for update information of discount amount and next service date.

Since this algorithm needs input from the previous servicecheck our database will initially select the previous service check of the auto.nextservicecheckdate = previousservicedate + regularcheckperiod

4- Graphical user interface and corresponding queries

List possible cars for customer

inputs( ‘branch_id’, ‘ car_brand’, ‘car_model’, ‘pickup_date’, ‘dropoff_date’, ‘totaldays’)

SELECT A.modelname A.modelyear A.brandname A.color A.carfareFROM AUTO A BRANCH B BOOKING BOOWHERE A.branch_id = ‘branch_id’ AND A.brandname = car_brand AND A.modelname = ‘car_model’ NOT EXIST (SELECT *

FROM BOOKING B2 AUTO A2WHERE B2.autoid = A2.autoid )

Make a reservation for a specific car in specified dates

User is allowed to make reservation for a car in a time period. However, user can not be able to make payment online. Only salesman can accept and confirm a payment.

inputs($autoid, $pickup_branchid, $pickup_date, $dropoff_date, )

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INSERTINTO BOOKING(bookingno, customerid, autoid, paymentno, reservationdate,pickup_date, pickup_branchid,dropoff_date, dropoff_branchid)VALUES ($bookingno, $customerid, $autoid, $paymentno, $reservationdate , $pickup_date, $pickup_branchid, $dropoff_date, $dropoff_branchid)

INSERTINTO PAYMENT (payment_id, remaining_amount, booking_no, payment_date, payment_type)VALUES ($payment_id, $remaining_amount, $booking_no, NULL, NULL)

Previous screen sample can only show the possible cars with their daily fares. In order to complete the reservation user should decide the drop off place and then the table will be updated.

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when customer fulfills a payment, the table will be updated by the salesman

inputs: $payment_type, $payment_amount

UPDATE PAYMENTSET payment_type = $payment_type AND remaining_amount =remaining_amount – payment_amount

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WHERE payment_id = $payment_id

Show Selected Costumers Details and Past Actions

SELECT Booking.booking_no P.payment_status P.remaining_amount A.modelname A.modelyear FROM BOOKING Booking PAYMENT P AUTO AWHERE Booking.customerid = $customer_id AND P.paymentno = Booking.paymentno AND Booking.auto_id = A.autoid

Confirm a reservation as reserved

UPDATE BOOKING BSET B.reservationstatus = “rsrvd”

confirm the payment of a reservation

UPDATE BOOKING BSET B.reservationstatus = “paid”

Add a new branch Inputs: ( $branchid, $branchname, $addressid, $detailedaddress, $phoneno)

INSERT

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INTO ADDRESS(addressid, detailedaddress)VALUES(‘detailedaddress’, ’addressid’, ’phoneno’)

INSERT INTO BRANCH (branchid,branchname, addressid)VALUES(‘branchid’, ‘branchname’, ‘addressid’)

Add new car to a branchInputs: (‘autoid’, ‘brandname’,’modelyear’, ‘modelname’, ‘autocolor’,’lastbookingno’)

INSERT INTO AUTO (autoid, brandname,modelyear, modelname, autocolor,lastbookingno)VALUES (‘autoid’, ‘brandname’,’modelyear’, ‘modelname’, ‘autocolor’,’lastbookingno’)$autoid = Last index of Autoid

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Sign up for a new customer

inputs ($name, $age, $address, $TCid, $address, $city, $detailedaddress, $zipcode, $phoneno)variables $customerid : Last index of customerid

INSERT INTO CUSTOMER (customerid, name, age, TCidno)VALUES ($customerid , $name, $age , $TCid)

INSERT INTO PERSON(age, name , TCid)VALUES($age ,$name, $TCid)

INSERTINTO ADDRESS(addressid, city, detailedaddress, zipcode, phoneno)VALUES($address, $city, $detailedaddress, $zipcode, $phoneno)

Delete a car from specific branchinput: $autoid

DELETE FROM AUTOS AWHERE A.autoid = $autoid

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List all cars

input: $branchidSELECT *FROM AUTO A BRANCH BWHERE B.branchid = A.branchid AND A.branchid = $branchid

List all staff

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input: $staffid

SELECT *FROM PERSON P BRANCH BWHERE B.branchid = A.branchid AND A.branchid = $branchid

Update car price

input: $newvalue

UPDATE AUTO ASET A.dailyfare = $newvalue

Add a service checkinputs: $autoid$nextcheckdate = previous check date + regular check period$serviceid

SELECT A.autoidFROM AUTO AWHERE A.autoid = $autoid AND

SELECT SC.nextcheckdateFROM SERVICECHECK SC SERVICECHECK SC2WHERE SC.autoid = $autoid AND SC2.serviceid > SC.serviceid

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INSERTINTO SERVICECHECK(nextcheckdate, serviceid, servicedetail, autoid)VALUES ($nextcheckdate, $serviceid, NULL, $autoid)

Finally we will have a simple login screen which separates the users. According to the given credentials, system will differentiate the customers from branch staffs.

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