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Kategorie: Informatik

Alles was mit der Informatik zu tun hat

MongoDB – simple queries in the Mongoshell

MongoDB – simple queries in the Mongoshell

What is MongoDB? MongoDB is a document-oriented NoSQL database that stores data in flexible, JSON-like documents, allowing for easy storage and retrieval of structured, semi-structured, and unstructured data. Unlike traditional relational databases that use tables and rows, MongoDB uses collections and documents, making it more adaptable to changing data structures. It was designed to handle large volumes of data and is known for its scalability, flexibility, and ease of use.  What is Mongoshell? The MongoShell is an interactive command window for the MongoDB database….

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My best articles about MongoDB

My best articles about MongoDB

Here is a little collection of articles about MongoDB Fedora 42 Backup script for MongoDB database In this article, I show you a modern version of a backup for a MongoDB database Linux (Fedora 41) Bash Script to do a backup for MongoDB This is the original version of the back about the modern version of a backup for a MongoDB database. MongoDB in Fedora Linux – how is the configuration of the server I show in this article how…

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After upgrading to Fedora 42, problems with the MySQL database due to downgrading

After upgrading to Fedora 42, problems with the MySQL database due to downgrading

First of all, it took me three hours of troubleshooting to solve the problem. I took a day off because it requires the utmost concentration. It’s not something you can do on the side. What is troubleshooting? Troubleshooting involves fault finding and fault correction and is a systematic approach to problem solving that is often used to find and eliminate problems in complex machines, electronics, computers and software systems. The first step in most troubleshooting methods is to gather information…

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Nach Upgrade nach Fedora 42 Probleme mit der Datenbank MySQL, wegen Downgrading

Nach Upgrade nach Fedora 42 Probleme mit der Datenbank MySQL, wegen Downgrading

Vorneweg, ich habe drei Stunden Troubleshooting gebraucht, also das Lösen des Problems liegen hinter mir. Ich habe mir einen Tag Pause gegönnt, denn es ist höchste Konzentration vonnöten. So etwas macht man nicht nebenbei. Was ist Troubleshooting? Troubleshooting umfasst die Fehlersuche und die Fehlerbehebung und ist ein systematischer Ansatz zur Problemlösung, der häufig verwendet wird, um Probleme in komplexen Maschinen, Elektronik, Computern und Softwaresystemen zu finden und zu eliminieren. Der erste Schritt bei den meisten Fehlerbehebungsmethoden ist das Sammeln von…

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Redirection

Redirection

I can see in my tool here, that a lot of people wanted to see my old blog articles https://sven-essen.de, that I have deleted. I have installed a redirection plug-in that will redirect you to another side. Then I don’t get the error 404 in my statistics, and you can my other sides. Please don’t wonder that you cannot find the site. On the right side you see a magnifying glass where you can search for the article or another…

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