4. Table of Content
What is Database
Database Management
Importance of DBMS
Airport Management System Introduction
Benefits
Implement of DBMS
Requirement
ER-Diagram
SQL
Security
5. .
Over View
A Collection of logical
related data it can easily
access.
Data store in
Tables, Rows
And Column
Data
Base
6. A database management system (DBMS) is
system software.
Creating and managing databases.
In which files are integrated to each other
The DBMS facilitates the user to create,
retrieve, update and manage data.
Database management
7. Importance of DBMS
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.
8. Introduction of Airport
Managements System
We used DBMS in airport management system.
First of all, we need to identify the entities, attribute
and relationships.
When we use DBMS, the record of all airport
management entities is in the same location.
We shows entities, attributes and relationships by ER
diagram.
SQL is a language which is used for applying queries.
Example we applying queries for insertion, deletion or
updating etc.
9. Benefits
While using DBMS, the data is independent.
It removes duplication of data.
Easy to insert, update and delete data in DBMS.
When we use DBMS, the files integrated each other.
We can secure our data by using DBMS.
10. Problems
They do not communicate at accurate time.
Duplication of Data
Data Dependency
At the Time of installation of a data base or
implementation of database we check the capacity of
the operating system if operating system cannot
capable to perform the operations we need to install
a upgrade operating system to run a database
efficiently.
11. Implement of DBMS
Analyze user environment.
Develop logical model.
Choose DBMS.
Map logical model DBMS.
Develop physical Design.
Evaluate Physical Model.
12. Requirements of AMS
Database management system required a operating system
that have capability to run and perform the operation of
database with the help of quires.
Database required a that Database Administrator for
control the of the data flow.
17. Models of DBMS
Data Model is a collection of concept used to describe
the structure of a data.
It contains data types, relationships, and constraints.
Hierarchical model
Network model
Relational model
18. Relational Model
Conceptually simple
Computers lacked power to implement the relational model
We are using the RDBMS in this data model
RDBMS has its ability to hide the complexities of the
relational model from the user.
It contains tables.
19. SQL
S.Q.L stands for Structured Query language.
It is used to interact with the database.
SQL was developed by IBM.
It is the standard language for RDBMS.
Using SQL statements we can perform tasks such as
retrieving or updating data from the database.
Select statement
Create table
Insert into
Delete table
20. Basic statements
Data definition language
Select statement
Create statement
Alter statement
Adding a column
Renaming a column
Drop statement
22. Create statement
Create table <table name>
(Column 1 data type,
Column 2 data type…
Column n data type)
Example:
Create table <Student>
{std_id varchar (15)
Std _name varchar(20)
Std_address varchar (40)};
23. Alter statement
Alter table <table name>
ADD(Column 1 data type,Column 2 data type…, Column n data
type);
Alter table student
Add(Roll_no varchar(10),std_age varchar(3));
28. DBMS Security
The unit of data used in specifying security in the database
can be, for example;
• the entire database
• a set of relations
• individual relation
• a set of tuples in a relation
• individual tuple
• a set of attributes of all tuples
• an attribute of an individual tuple.
29. Security
Database Security involves protection against:
unauthorized disclosures
alteration
destruction
Stop people without db access from having any access.