The document provides an overview of database systems, describing their structured organization for efficient data retrieval and management, and contrasts different types such as relational, object-oriented, distributed, NoSQL, and graph databases. It highlights various database software, including MySQL and Oracle, and discusses challenges faced by database administrators, including data security and performance management. The document concludes with exercises related to understanding databases and data protection.

1. DATABASE
SYSTEM
PREPARED BY:
MS. DEBRA LEE DABALOS

2. DATABASE
A structured collection of data that
is organized and stored in a way
that allows efficient retrieval,
management, and updating of
that data. It is designed to manage
large amounts of information,
providing a systematic and
organized approach to storing and
retrieving data. It is controlled by
DBMS.

3. Database
vs.
Excel

4. TYPES
OF
DATABASES
• Relational Databases
• Object-Oriented
Databases
• Distributed Databases
• NoSQL Databases
• Graph Databases

5. Relational Database
Items in a relational database are organized as a set of
tables with columns and rows. Relational database
technology provides the most efficient and flexible way to
access structured information.

6. Object Oriented Database
Information in an object-oriented database is
represented in the form of objects, as in object-
oriented programming.

7. Distributed Database
A distributed database consists of two or more files
located in different sites. The database may be
stored on multiple computers, located in the same
physical location, or scattered over different
networks.

8. NoSQL Database
Not Only SQL, allows unstructured and
semistructured data to be stored and manipulated.
In contrast to a relational database, which defines
how all data inserted into the database must be
composed.

9. Graph Database
A graph database stores data in terms of entities
and the relationships between entities.

10. DATABASE
SOFTWARES
It is used to create, edit, and
maintain database files and
records, enabling easier file
and record creation, data
entry, data editing, updating,
and reporting. The software
also handles data storage,
backup and reporting, multi-
access control, and security.

11. DATABASE
SOFTWARES
• MYSQL
• Microsoft Access
Server
• SQLite
• Oracle
• MongoDB
• MariaDB

13. MYSQL Database
an open source relational database management
system based on SQL. It was designed and
optimized for web applications and can run on any
platform. MySQL is the DBMS behind some of the
top websites and web-based applications in the
world, including Airbnb, Uber, LinkedIn, Facebook,
Twitter, and YouTube.

14. DATABASE
CHALLENGES
Large enterprise databases often
support very complex queries
and are expected to deliver
nearly instant responses to those
queries. Database administrators
are constantly called upon to
employ a wide variety of
methods to help improve
performance.

15. Database Challenges
Absorbing
significant
increases in data
volume
Ensuring data
security
Keeping up with
demand

16. Database Challenges
Managing and
maintaining
the database
and
infrastructure

17. THANK YOU FOR
YOUR ATTENTION

18. Exercises:
• What is Database
• Differentiate Data between
Information.
• How do you secure your data?
• How will you protect and
maintain your database?