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?...

Buyer personas for optimal targeting

Buyer personas: Getting to know your customers better

When it comes to online marketing, data is what counts most today. But what good is the information you have collected and analyzed if you address indefinite groups of people in your messages? It is better to identify the people behind the data set and focus on them. Creating concrete buyer personas helps to better align marketing measures with the target group.

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...

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 17 interesting Raspberry Pi projects to try out at home.

Relational Databases

The relational database model

With relational database systems, you use tables to store and manage information. This sounds simple but involves quite complex concepts such as normal forms, key relationships, and JOINs. This article will introduce the basics of the relational database model, compare its advantages and disadvantages, and delimit this type of data storage from alternative approaches, like object databases,...

Setting up server backups with rsync

Server Backups with rsync

A server backup is the best method for securing the data of your online projects, thereby preventing any damaging losses. Server environments are especially in need of cleverly devised backup strategies that take every type of device into account. Here, backup programs become essential. Free applications, like rsync, offer reliable and compelling alternatives to their expensive conventional...

What is Big Data?

Big Data: definition and examples

When we shop online, book vacations, 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 are analyzed and used for a variety of reasons. But is there reason to be wary of leaving behind...

Protect sensitive data with a strong password

Optimal password protection: how to choose a strong password

It only takes a few seconds for a hacker to gain access to your private data without you having any idea. More often than not, a password is the only means of protection when logging into online services; and if it is too obvious, it will not prove too much of a challenge for criminals to crack. There are numerous options to increase password security.


IndexedDB: Tutorial for browser storage

Holding certain data in the client helps to make the Internet faster and more flexible, enabling users to enjoy a better browsing experience. IndexedDB allows larger volumes of data to be stored in the users’ browsers so that they don’t have to be downloaded from the server each time the website is accessed. Get to know IndexedDB based on an example.

In-memory databases

In-memory databases: the storage of big data

In-memory databases enable big data to be analyzed 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...