Category: Programming

Database Normalization: A Primer

Kenneth Igiri
Rate this post

The Relational Model of data management was first developed by Dr. Edgar F. Codd in 1969. Modern relational database management systems (RDBMSes) are aligned with the paradigm. The key structure identified with RDBMS is the logical structure called a “table”. Tables are primarily composed of rows and columns (also called records and attributes or tuples and fields). In a strict mathematical sense, the term table is actually referred to as a relation and accounts for the term “Relational Model”. In mathematics, a relation is a representation of a set.

The expression attribute gives a good description of the purpose of a column – it characterizes the set of rows associated with it. Each column must be of a particular data type and each row must have some unique identifying characteristics called “keys”. Data change is typically more efficient when done using the relational model while data retrieval may be faster with the older Hierarchical Model which has been redefined in model NoSQL systems. Read More

Jenkins Plugin Implementation – Part 1

Artem Kravets
Jenkins Plugin Implementation – Part 1
4.8 (95%) 4 vote[s]

Jenkins Plugin implementation generally consists of the following stages:

  • Environment preparation;

  • Implementing the plugin’s UI;

  • Implementing the plugin’s business logic;

  • Implementing validation;

  • JUnit test coverage;

In this part of the article, we’ll look at the first two stages. Read More

Structured Query Language – Importance of learning SQL

Amarendra Babu
Structured Query Language – Importance of learning SQL
4.4 (88.75%) 32 vote[s]

Computer programming language is a set of detailed instructions for computers or machines for performing specific actions. Through a programming language, we can control the behavior and output of a computer via accurate algorithms. A programming language is also called a computer language or programming system. The computer performs with various programming languages, such as SQL, Java, C++, Python, etc.. These languages allow computers and machines processing the large and complex data more effectively and quickly. That is the reason we find them valuable to organizations, particularly in the creation of system database management services. Read More

Introduction to Docker and Docker Toolbox

Prashanth Jayaram
Introduction to Docker and Docker Toolbox
3.3 (65.71%) 7 vote[s]

The article gives some knowledge about getting started and utilizing Docker containers. The focus is all about understanding  Docker and its basics. Once you start grasping the basics and learn to use them, you will easily understand how to use Docker with other products.

In this article, we are going to review the following points:

  1. Introduction to Docker
  2. Pre-requisites to be done for the installation
  3. Installation of Docker toolbox on Windows
  4. Basics on getting started with Docker
  5. Main docker commands to be used
  6. Methods to build Ubuntu images from the docker hub repository
  7. And much more…

Read More