Bank mangement system

Presentation of DBMS

SUBMITTED TO USMAN SB SUBMITTED BY UMAR AMIN M .FAISAL GHAFFAR

MARYAM ARSHAD SUMAIRA HAIDER

Banking Management System

Topic

Definition1

importance2

Implement3

Requirements4

Face problems5

ER-Diagram6

Contents

Entities & attribute7

Modeling8S.Q.L9Conclusion10

Question answer11

Contents

DATABASE MANAGEMENT SYSTEM

Definition

Over View

Collection of information that is organized so that it can easily access.

Data store in tables,rowsAnd column

Data Base

A database management system (DBMS) is system software.

Creating and managing databases. The DBMS provides users and programmers with a

systematic way to create, retrieve, update and manage data.

Definition of DBMS1

Importance of DBMS2

IMPORTANCE

A database management system is important because It helps make data management more efficient and effective. A database management system stores. organizes and manages a large amount of information within a

single software application. Use of this system increases efficiency of business operations and

reduces overall costs.

Importance of DBMS

2

Analyze user environment. Develop logical model. Choose DBMS. Map logical model DBMS. Develop physical Design. Evaluate Physical Model. Tune System. Implement System.

3 Implement

Customer Banker-info Branch Loan Credit-Card Account

Requirements BMS4

Verification of documentation. Customer service representative / Personal banker

Clearing , Account opening , online transfers etc. Forms of special crossing cheques. Customer debit and credit problem. Employee is not efficient. Customer Communication problem face.

Face a Problems5

They do not communication with us accurate time. Death of any person. Verification of Deduction of Zakat. Provision for Bad Debit. Missing Vouchers. Verification of lockers facilities.

Face a Problems5

ER-Diagram6

ER-DIADRAM

1: ENTITIES (Customer) ATTRIBUTES (Customer-id , Customer-name , Customer-street , Customer-city)

2: ENTITIES (Banker-info) ATTRIBUTES (Banker-name , Banker-email , Banker-id)

3: ENTITIES (Branch) ATTRIBUTES (Assets , Branch-name , Branch-city)

4: ENTITIES (Loan) ATTRIBUTES (loan-number , Amount)

5: ENTITIES (Credit-Card) ATTRIBUTES (Expired-date , Limit , Credit_card_number )

6: ENTITIES (Account) ATTRIBUTES (Balance , Account-number , Category)

Entities & attribute7

Representation of real world objects, event and their association called molding.

It helps the user understand the complexities.

Used to as a communication tool. Good data model enables the users to understand the

organization. For which the data base design is developed. Good data model very necessary to design the data base.

Modeling8

Importance of Data model

Types of data model

Object-based Data model

Record based model

Physical Data model

Object based Data Model

Object based model use the concept. Like Entities, attributes, relationship Entities

Person, place, things, for which data is collected. Attribute

The characteristics of entity is called attribute. Relationship

The association b/w two or more entity.

Record based data model

Used to describe external and conceptual level of data base.

Also use to describe internal level to some extent.

They are used to develop and logical structure.

The record may different type.

Each record types define of fixed number of field.

Types of Record based

Hierarchical Model

Network model

Relational model

(In our project we use the relational model)

Physical Data model

Describe the store the data in computer.

They give information, such as record structure.

They are not as many physical data model as logical data model

S.Q.L9

S.Q.L (Structured Query Language)

S.Q.L S.Q.L stands foe Structured Query language. It is not full features programming language. It is simply data sub language SQL was developed by IBM. It endorsed as a national standard by ANSI (American national standard institution). New standard SQL3 also exists. The most widely implement of version of SQL is ANSI-92

SQL is English-like language. It uses words Like SELECT, INSERT etc. SQL commands are not case Sensitive SQL provide commands for variety of task including.o Inserting, updating, deleting row in a table.o Creating, modifying, and deleting.o Controlling access to the data base and data base object.

Features of S.Q.L

DDL (Data Definition Language)

Data Definition Language (DDL) is a standard for commands that define the different structures in a database.

DDL statements create, modify, and remove database objects such as tables.

Common DDL statements are CREATE, ALTER, and DROP.

Create Statement: Using Create statement, we can create a new table in the

database. The syntax of the Create statement is as follows.

Syntax:

CREATE TABLE <Table Name> (Column 1 data type, Column 2 data type, Column 3 data type … Column n data type);


Here, CREATE and TABLE are keywords.

The table and column names must start with a letter and can be followed by letters, numbers, or underscores.

SQL reserved keywords should not be used as names for tables and columns


Alter Statement:

Using alter statement we can do the following alterations in our existing table.

Adding a new column

Renaming a column


Adding a new column:

The syntax for adding a new column into the table is as follows.

Syntax:

ALTER TABLE <Table name>

ADD(column 1 data type, column 2 data type, … column n data type);

Here, ALTER, TABLE and ADD are keywords.


Renaming a column:

The syntax for renaming a column is as follows.

Syntax:

ALTER TABLE <Table name> RENAME COLUMN <old name> TO <new name>;

Here, ALTER, TABLE, RENAME, COLUMN and TO are keywords.


Drop Statement: The drop statement is used to delete a table and all the

rows in the table.

Syntax:

DROP TABLE <Table name>

Here, DROP and TABLE are keywords.


DML (Data manipulation Language) The DML commands are used to insert and modify the data

in the database. It enables us to perform the following tasks.

Inserting a row or the values of particular columns into the table (Using Insert statement)

Updating values of columns in a table (Using Update statement)

Deleting rows in a table (Using Delete statement)

Syntax 1: (To insert values for the specified columns in a table)

INSERT INTO <Table Name> (column 1, column 2, … column n)VALUES (value1, value2, … value n);

Here, INSERT, INTO and VALUES are keywords.

DML (Data manipulation Language)

Update Statement:

The update statement is used to update or change records that match specified criteria. This is accomplished by using a WHERE clause.

Syntax:

UPDATE <Table Name> SET column 1 = value 1, column 2 = value 2, … column 3 =

value 3 WHERE <condition>;


Delete Statement: The delete statement is used to delete the records or rows

from the table.

Syntax: DELETE FROM <Table Name> WHERE <Condition>

Here, DELETE, FROM and WHERE are keywords.


9 Security

Security

Overview To Database Security. Why need of database security. What is Database Security. Concepts of Database Security.

Security9

Threats and risk to database have increased, So there is a need for security of the database.The majority companies store sensitive data in database.

If there is no security to

database what happens???

Data will be easily corrupted

Overview

Security risk to database includes

Unauthorized database users

Unauthorized Database Administrator

Unauthorized access to Database

Lack of access to Database services

Sensitive data includes

•Bank/Demat accounts•Credit card, Salary, Income tax data\•University admissions, marks/grades•Land records, licenses

Definition of Database Security

Database Security is defined as the process by which “Confidentiality,

Integrity and Availability” of the database can be protected.

Threats to database

Unauthorized access.

Password Cracking.

Network Eaves Dropping.

SQL Injection.

SQL InjectionA form of attack on a database-driven of insecure code on a system connected to the Internet , bypassing the firewall Web site in which the attacker executes unauthorized SQL commands by taking advantage.

05/02/2023

Vulnerabilities:

Poor Input validation to web application.Unsafe ,dynamically constructed SQL commands.Weak permissions that fail to restrict the application to Database

Methods of securing the database

Authorization - privileges, views.

Authentication – passwords.

Encryption - public key / private key, secure sockets.

Logical - firewalls, net proxies.

05/02/2023Database security issues

Security of The Database Through Firewalls

A FIREWALL is dedicated software on another computer which inspects network traffic passing through it and denies (or) permits passage based on set of rules. Basically it is a piece of software that monitors all traffic that goes from your system to another via the Internet or network and Vice Versa

Database Firewalls are a type of Web Application Firewalls that monitor databases to identify and protect against database specific attacks that mostly seek to access sensitive information stored in the databases.

How Database Firewall works

The Database Firewalls include a set of pre-defined, customizable security audit policies and they can identify database attacks based on threat patterns called signatures.

The SQL input statements (or) queries are compared to these signatures, which are updated frequently by the vendors to identify known attacks on the database.

But all the attacks on the databases may not be familiar.

Database Firewalls build (or come with) white list of approved SQL commands(or) statements that are safe.

All the input commands are compared with this white list and only those that are already present in the white list are sent to the database.

Diagrammatic Representation

DATABASES MANAGEMENT SYSTEM

Keys

DATABASES MANAGEMENT SYSTEM

Conclusion

10

Conclusion

A DBMS is a systematic operational system which consists of tools

making data, data saving and data manipulation an easier task.

DBMS is the majorly used through out the wold for data handling.

Thus its a good data manager till today.

If some one ask you question How do we protect data form crashes.

Education

Bank mangement system