about database

1. IN THE NAME OF ALLAH
This seminar about
(Database)
Prepared by: Lavin M.saeed
May.2022

2. Out line:
What is database?
The birth of the database:
Database software:
What are databases used for?
database management system (DBMS):
What is a MySQL database?
Database languages:
Components of a Database:
Conclusion:
Types of database:

3. A database is an organized collection
of structured information, or data,
typically stored electronically in a
computer system.
A database is usually controlled by
a database management system
(DBMS).
What is database?

4. In June of 1970, a computer scientist from
IBM named Edgar F. Codd published an
academic paper titled, A Relational Model of
Data for Large Shared Banks.
It elaborated a way of building a bunch of
cross-linked tables that would allow you to
store any piece of data just once.
The birth of the database:

5. Databases are used for storing, maintaining and
accessing any sort of data.
They collect information on people, places or
things.
That information is gathered in one place so that
it can be observed and analyzed. Databases can be
thought of as an organized collection of
information.
What are databases used for?

6. Database software:
Database software is used to create, edit, and
maintain database files and records……
Strong database security is especially important
today, as data theft becomes more frequent.
Database software is sometimes also referred to as
a “database management system” (DBMS).
users can construct their own databases by using
database software.

7. Defferent between database&(DBMS):
There are different in some terms:
 Access data.
 Data manipulation.
 Speed.
 Backup and recovery.

8. What is a MySQL database?
MySQL is an open source relational database
management system based on SQL. It was designed and
optimized for web applications and can run on any
platform. Because it’s designed to process millions of
queries and thousands of transactions.
MySQL is the DBMS behind some of the top websites
and web-based applications in the world, including
LinkedIn, Facebook, Twitter, and YouTube.

9. Relational databases:
Relational databases became dominant in the 1980s.Relational database technology provides the most
efficient and flexible way to access structured information.
Distributed databases:
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.
NoSQL databases:
A NoSQL, or nonrelational database, 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).

10. Database languages:
o Data Definition Language (DDL) – defines data types
such as creating, altering, or dropping tables and the relationships among them.
o Data Manipulation Language (DML) – performs tasks such as inserting, updating, or deleting data
occurrences.
o Data Control Language (DCL) – controls access to data.
o Transaction Control Language (TCL) – allows searching
for information and computing derived information.
Database languages are classified into four
different types: DDL, DML, DCL, and TCL.

11. Database & Spreadsheet
VS
Spreadsheets are
designed for one user.
They’re great for a
single user or small
number of users who
don’t need to do a lot of
incredibly complicated
data manipulation.
Database are designed
to hold much larger
collections of organized
information Databases
allow multiple to work
on it at the same time.

12. 1. Hardware
Hardware refers to the physical, electronic devices such
as computers and hard disks .
3. Software
Software is a set of programs used to manage and control the database.
3. Data
Data are raw facts and information that need to be organized and processed to make it more
meaningful.
4. Procedures
Procedures refer to the instructions used in a database management.
5. Database Access Language
Through utilizing the language, users can create new databases, tables, insert data, and delete data.
Components of a Database:

13. Dis adv…
Complexity: Databases are complex
hardware and software systems.
Cost: It requires significant upfront and
ongoing financial resources.
Security: Most leading companies need to
know that their Database systems can
securely store data.
adv…
Reduced data redundancy.
Data security is also improved.
Reduced data entry, storage,
and retrieval costs.

14. With the help of databases and other BI
tools and computing tools, professionals in
organizations are able to make use of the
organized data to facilitate improved and
effective decision-making, agility, and
scalability.
users can rapidly search, rearrange,
group, and select the field in many records
to retrieve or create reports
Conclusion:

15. Thanks…

16. Reference:
https://www.javatpoint.com/
https://www.computerhope.com/
https://www.codecademy.com/