What is Data
What is information
Why we need database
What is database and database management
system
Strategic use of database and issues (Security )
Data is defined as Raw facts and figures ,
unorganized, it can be anything
When data is arranged in systematic way then it is
referred as information
Data
Database
Database
manage
Access
update
Database
DBMs
updating
Storage
Retrieve
Database Manage system System
Database Management Systems (DBMS) are software systems used to store, retrieve, and run queries on
data. A DBMS serves as an interface between an end-user and a database, allowing users to create, read,
update, and delete data in the database.
Examples of DBMS
 Database are valuable
 protection necessary
 It is important to restrict access to the database from authorized user to protect sensitive
data.
 Database security is defined as the process by which “confidentiality, integrity and
Availability "of the database can be protected
 We've got three important guardians for Databases protection i.e CIA .: Confidentiality,
Integrity, and Availability. Let's meet them with examples that'll make it crystal clear.
1. Confidentiality: The Secret Keeper
 refers to the protection of data from unauthorized user.
 Example
Think of a database storing medical records. Imagine if just anyone could peek at your
medical history – not cool, right? So, Confidentiality ensures that only doctors and authorized
staff can access your medical records, keeping your private information safe.
2. Integrity: The Reliable Editor
 only the authorized person can do changes and update.
 Example
Let's say you're in charge of an online store's inventory. You want to be the only one who can add
or remove items. Integrity ensures that no one messes with the inventory without your
permission, so you're always in control.
3. Availability: The Always-Open Door
 ensuring timely and reliable access to and use of information,
 assures that systems work promptly and service is not denied to authorized users.
 Example
Think of an airline's reservation system. People need to book flights at any time of day.
Availability ensures that the system is up and running 24/7, so travelers can book their flights
whenever they need to, without any hiccups.