Abstract
A database system is a computerized system whose overall purpose
is to store and organize the data in a way that can be accessed, managed, and modified on demand. A database system becomes an
important part of information management systems that enhances
the ability of organizations to manage their important data in an
easy way. A database system has many benefits that are described as
follows:
• Reducing the amount of data redundancy by ensuring that
the data are stored in one location and can be accessible to all
authorized users
• Improving data access to users through use of host and query
languages
• Enhancing data security
• Decreasing data entry, storage, and retrieval costs
• Allowing more flexibility for manipulating data
• Presenting greater data integrity and independence from
applications programs
The interaction between the user, other applications, and the
database itself can be performed through a software system called
a database management system (DBMS) [1], which is specially
designed to help the user to capture and analyze the stored data.
The general purpose of the relational database management system
is to be used as a tool to define, create, and manage the relational
database.