Database Management Systems
Data management system (DBMS). Software that controls the organization, storage, recovery, security and integrity of…
Principles of Database Concepts
Principles of Database Concepts
Structured Query Language
SQL comes from Structured Query Language. SQL is a tool that database analysts, administrators and…
Principles of Database Concepts
Relationships between tables
The relationship represents an association established between common fields (columns) in two tables. There are…
Principles of Database Concepts
Entities, Relationships and Attributes of Relational Database
In order to define the relational database concept it is important to understand the underpinning…
Principles of Database Concepts
Relational database concept
A relational database is a collection of data elements with predefined relationships between them. These…