Database

Raspberry Pi projects

Raspberry Pi projects

Raspberry Pi is an inexpensive micro-computer that can behave like a standard computer in many respects. The innovative mini device can be used for a wide range of tasks - from setting up an operating system to surfing the web, to using it as a server or a media center. Discover 20 of the most interesting Raspberry Pi projects to try out at home.

The basics for modern web development

Modern web development: the basics

The trends driving web development are moving away from static web presences and heading increasingly in the direction of interactive content. Even though languages like HTML and CSS still rule the roost, a growing number of developers prefer the server-side programming language, PHP, for dynamic websites. Client-side script languages like JavaScript make it possible for a site to react to user...

Setting up server backups with rsync

Server Backups with rsync

Server backups are the best way to save vital data from your online projects and avoid losing data. A sophisticated backup strategy including all terminal devices is essential, especially in server environments. To do so, you need reliable backup programmes. In addition to software solutions and online services, which are often very expensive, free applications like rsync offer an alternative.

PostgreSQL

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?...

How PHP7 speeds up the internet

PHP7 – shorter loading and access time online

Running dynamic websites that use complex content management systems benefit from quick loading times. This is because they ensure good performance and therefore increase user-friendliness. With the release of PHP7, a new scripting language is now available with which the loading times of your own website can be significantly shortened compared to the older script version.

MongoDB: an introduction and comparison to MySQL

MongoDB — the flexible and scalable NoSQL database

NoSQL databases have long since been serious competitors to classic relational database systems, like MySQL. They replace the strictly-defined storage structures of traditional models through flexible saving procedures. This allows data pools to be easily distributed onto multiple servers in order to guarantee high availability of web applications. But are these new systems really all that they’re...

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.

Elasticsearch

Elasticsearch: the flexible search engine

If you work with large amounts of data, you’ll need a powerful search engine. Elasticsearch offers you a full-text search that you can configure so that it is perfectly tailored to your needs. But first you have to understand the principle behind it – what is Elasticsearch?. In this Elasticsearch tutorial we’ll explain the first steps in using the search engine, from installation to creating a...

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,...

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 analysed 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.


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