The document presents a project defense focused on efficient database design for a banking system, exploring topics such as database modeling, normalization, security, and performance. It emphasizes the use of entity-relationship (E-R) modeling and discusses key concepts like primary and foreign keys, indexing, and concurrency in database management systems. The findings highlight the importance of database reliability and security measures to safeguard data integrity and efficient operation within an organization.

1. Presented byPresented by Supervised bySupervised by
Spring 2016
MSc in CS: Project Defense
Study on Efficient database
design for banking system
S.M. Murad Hasan Tanvir
ID: CSE201603012
Fall-2016
Dr. Md. Humayun Kabir
Professor
Department of CSE
Jahangirnagar University

2. MSc in CS: Project Defense
• Database
• Database System
• Database Modeling
• E-R Modeling
• Database Keys
• Normalization
• Performance – Database Engine, Indexing and SP(Stored
Procedure)
• Concurrency
• Security
• Reliability
Outline
2

3. MSc in CS: Project Defense
The project is on the “study on efficient
database design for the banking system”. After
detail study on database , database system,
database modeling, E-R modeling, keys,
database normalization, database security and
reliability i have used a local MySQL-Apache
server to create a database for banking system.
The primary and foreign keys used for different
tables.
Introduction
3

4. MSc in CS: Project Defense
A database is a set of data that has a regular
structure and that is organized in such a way
that a computer can easily find the desired
information.
Database
4

5. MSc in CS: Project Defense
A database management system (DBMS) is
software that has been created to allow the
efficient use and management of databases,
including ensuring that data is consistent and
correct and facilitating its updating.
There are one drawback in DBMS, and it is the
relation among the tables. The features is in
RDBMS.
Database Management System
5

6. MSc in CS: Project Defense
A Relational database management system
(RDBMS) is a database management system
(DBMS) that is based on the relational model as
introduced by E. F. Codd.
A Relational Database Management System
(RDBMS) is a software applications that can be
used to create, maintain, manage and use the
database.
Relational database management
system
6

7. MSc in CS: Project Defense
A collection of concepts that can be used to
define the Database structure-
•Data item and Type
•Relationships
•Operations / behavior
•Constraints.
Database Modeling
7

8. MSc in CS: Project Defense
There are some kinds of Model-
•Entity - Relationship model
•Relational model
•Hierarchical model
•Object-data models
Among these models, I choose the E-R
Modeling.
Database Modeling (Cont.)
8

9. MSc in CS: Project Defense
The entity-relationship model is a way of
graphically representing the logical relationships
of entities in order to create a database.
In E-R modeling, the structure for a database is
portrayed as a diagram, called an entity-
relationship diagram, that resembles the
graphical breakdown of a sentence into its
grammatical parts.
E-R (Entity-Relationship) Modeling
9

10. MSc in CS: Project Defense 10

11. MSc in CS: Project Defense
Database Keys used to establish and identify
relation between tables. They also ensure that
each record within a table can be uniquely
identified by combination of one or more fields
within a table.
•Primary Key
•Foreign key
•Candidate Key
Database keys
11

12. MSc in CS: Project Defense
Database Normalization is a technique of
organizing the data in the database.
Normalization is used for mainly two purposes-
•Eliminating redundant (useless) data.
•Ensuring data dependencies make sense i.e.;
data is logically stored.
Normalization
12

13. MSc in CS: Project Defense
Normalization rule are divided into following
normal form-
•First Normal Form
•Second Normal Form
•Third Normal Form
Normalization (Cont.)
13

14. MSc in CS: Project Defense
The performance depends on some criteria-
•Database Engine
•Indexing
•Stored Procedure(SP)
Performance
14

15. MSc in CS: Project Defense
A storage engine is a software module that a
database management system uses to create,
read, update data from a database.
•InnoDB = Supports transactions, row-level
locking, and foreign keys
•MyISAM = Default engine as of MySQL 3.23
with great performance
Database Engine
15

16. MSc in CS: Project Defense
B-tree indexes are created to decrease the
amount of I/O required to find and load a set of
data. A highly selective index uses least amount
of I/O necessary, poorly selective indices are not
much better than a table scan.
Indexing
16

17. MSc in CS: Project Defense
Database Concurrency Definition. Concurrency
can be defined as the ability for multiple
processes to access or change shared data at
the same time.
The greater the number of concurrent user
processes that can execute without blocking
each other, the greater the concurrency of the
database system.
Concurrency
17

18. MSc in CS: Project Defense
Database security refers to the collective
measures used to protect and secure a database
or database management software from
illegitimate use and malicious threats and
attacks.
It is a broad term that includes a multitude of
processes, tools and methodologies that ensure
security within a database environment.
Database Security
18

19. MSc in CS: Project Defense
The database is usually a critical piece of
infrastructure in an organization; when the
database is down, many things stop working, so
database reliability is often a serious concern.
Database Reliability
19

20. MSc in CS: Project Defense
Any Question?
20