PostgreSQL: a closer look at the object-relational database management system

The PostgreSQL database management system, also known to many as Postgres, has many decades of development behind it. It originally started as a project at Berkeley University in California. Today, the open source database continues to defy solutions from commercial competitors, since the development team is constantly working on its functionality and performance. But what exactly is PostgreSQL?...

Raspberry Pi at a glance: 10 great Raspberry Pi projects

Explore the possibilities with these 17 Raspberry Pi projects

Raspberry Pi is an inexpensive small form factor PC that can behave like a standard computer in many respects. Users can use this innovative mini-computer for all kinds of functions, from setting up an operating system to surfing the web, to using it as a server or a media center, and much more besides. Discover 10 interesting Raspberry Pi projects to try out at home.

Managed cloud hosting: customized servers

Managed cloud hosting: flexible server structures at the click of a button

More and more website operators are turning to managed cloud hosting as a solution for their server environment. This option promises flexible scalability of required resources in real time, along with a wide range of services offered by the provider including the installation, maintenance, and protection of the hosting platform. So how does managed cloud hosting work? Find out what services...

In-memory databases

In-memory databases: the storage of big data

In-memory databases enable big data to be analysed and made available in real time. The quick access speeds are made possible by storing the data on the working memory – hence the name in-memory database. Traditional databases, on the other hand, are based on the method of storing data on the hard disk. How do in-memory databases differ from traditional database systems? And what are the go-to...

MariaDB vs. MySQL

MariaDB vs. MySQL

MySQL is the most used database management system in the world. This open source software has been available for productive use since 1995 and is generally considered a standard solution for users of relational databases. This could change in the near future. MariaDB, a community-developed fork of MySQL is catching up on its predecessor and is consequently becoming an increasingly attractive...

A comparison of data mining tools

Data mining tools for better data analysis

In the digital age, it’s normal for data from small and medium-sized companies to grow to unmanageable amounts. Data mining tools are used to extract desired information from data sets. These extract recurring patterns from the data and make them available to marketers and statisticians. We have compared the most important data mining software and show where their strengths and weaknesses lie.

What is Big Data?

Big Data: definition and examples

When we shop online, book holidays, and search for gift ideas, we hardly give a second thought to the fact that each search entry leaves behind a trail of our identity. Busy web bots are never far behind and sweep up this information. The result of all of this is Big Data: massive volumes of data that is analysed and used for a variety of reasons. But is there reason to be wary of leaving behind...

Best cloud storage providers

The best cloud storage providers – an overview of the best online storage

Storing files online on a cloud platform has become part of everyday life for many people. Regardless if it’s your own holiday photos, or important documents for work - storing files with online storage providers takes the load off your hard drive, and also ensures that they are available anytime and from anywhere. But what are the best cloud storage providers on the market? And what differences...

UML: activity diagram

Activity diagrams: clearly present chronological activity processes with UML

UML activity diagrams help you to graphically illustrate the chronological sequence of system processes in object-oriented programming. They show which actions take place in which order to execute an activity. With a finished diagram, you can create code frames using XML transfer. Or do you want to map business processes? We show examples of how to create an activity diagram, which symbols belong...

Database normalisation

Less redundancy thanks to database normalisation

Redundancies occur when various details are combined in a single database table. These redundancies use up storage capacity and prevent efficient data processing. The relational database model offers strategies for splitting datasets among several linked tables, in a process called database normalisation. Find out what it’s all about with practical examples.