Processing big data plays an increasingly important role in many companies. Among the key tasks are the separation of important and unimportant data and the creation of suitable visualizations to be able to present the results in an appropriate form. The open source tool Jupyter Notebook proves to be an excellent solution for this, as well as for displaying live code.Jupyter Notebook: Web documents for data analysis, live coding and more.
It won’t take long for those looking to get into to software development to encounter the term CRUD. The acronym stands for the typical operations used for communicating with database systems; these normally form the basis of database management. But just how are these access functions for data management actually set up? And how much of role does CRUD play when it comes to the databases’...CRUD: the basis for data management
Applications on the web need interfaces in order to exchange data. If you run a web project yourself and want to grant other programs access to certain data sets, an API (application programming interface) like this is essential. Established concepts such as REST or SOAP are often used in development – but there are alternatives, as GraphQL proves.GraphQL: flexible query language and runtime environment for your web API
If Chrome displays the message "ERR_CONNECTION_CLOSED" instead of the website you want to access, it means that the contacted server has interrupted the connection. Reloading the URL is often not enough to fix the problem. Unfortunately, determining the source of the error is anything but a simple task. To fix the "ERR_CONNECTION_CLOSED" error, you need a good amount of patience.ERR_CONNECTION_CLOSED: How to fix the connection error
You cannot start Microsoft Outlook, your calendar is no longer accessible, an important e-mail can no longer be retrieved – when Microsoft’s popular and useful e-mail program fails, you have to laboriously access your inbox via your e-mail provider’s website. Usually, a defective Navigation Pane, outdated add-ins, or a profile in need of repair are at fault. Even with issues lacking clearly...Outlook won’t start – what now?
“B2C“ stands for “Business-to-Consumer” and refers to business relationships between companies and consumers. For example, when customers place an order in an online store, they enter into a business relationship with the respective company. The company enters into a communication relationship with their customers by sending an order confirmation, a newsletter, or recommendations for further...B2C: Business-to-consumer
UTF-8 is method of Unicode character encoding, which claims to cover all modern languages for data processing. The format has significantly influenced international digital communication. But what exactly does “UTF-8” mean? And what is special about UTF-8 in the Unicode character set? Here you can find out which structure the coding is based on, and which bytes are permitted in the standard...UTF-8: the network standard
Are you looking to publish an e-book and are searching for the right file format to suit your needs? In the third part of our series on e-books, we’ll be taking a closer look at the most popular e-book formats on the market today, comparing their advantages and disadvantages and helping you to decide which format is the right one for you.Everything you need to know about e-books – part three: e-book formats
The interest in e-books has largely increased in previous years, and modern reading devices with energy-saving ‘e-ink’ display technology have now made the once niche product a mainstream contender. In our multi-part series, we give you tips on creating your own e-book. Welcome to part one: things to consider regarding planning, structure, and publishing.Everything you need to know about e-books – part 1: creating an e-book
The central monitoring and managing of network devices such as routers, switches, or firewalls is often carried out using the Simple Network Management Protocol (SNMP). Both snmpwalk and snmpget tools use SNMP messages, for example, to retrieve data sets of selected network participants. In our SNMP tutorial, we show what these two command line tools can do and how data retrieval works.SNMP tutorial: how snmpwalk and snmpget work