While the main goal always is to prevent long-running queries in the first place, automatic timeouts can serve as...
Using Capistrano, we usually have some array configurations in the config/deploy.rb file, like set :linked_files, %w[config/database.yml], so in...
Postgres works differently See PostgreSQL: Difference between text and varchar columns for PostgreSQL-specific info MySQL has 4 different column...
There are two ways a logout in SAML can happen: Service Provider (SP) initiated and Identity Provider (IDP) initiated logout...
Apply Test Driven Development(TDD) to the process of building container images by defining test before writing code and automate...
In dieser Card machst du einige Übungsaufgaben um Linux Server mit Ansible zu verwalten. Da es vermutlich zu aufwendig ist...
To retrieve only unique combinations of the selected attributes: You can omit rows, where all selected columns are equal with...
Das Standardtool für Monitoring auf AWS ist Cloudwatch. Du hast dir in den AWS Kapiteln Cloudwatch sicherlich schon grundsätzlich angesehen...
We had a strange behaviour on one of our mariadb-servers: Everyday at around midnight we saw that the root...
The Oracle mysql client has an odd behavior if your server uses latin1 as default character-set-server. Command
Der zuverlässige und perfomante Betrieb von relationalen Datenbanken kann sehr aufwendig und komplex sein. Dies gilt vor allem, wenn man...
If you use third party APT sources you might end up with unmaintained packages after removing the external source or...
When your Rails application offers downloading a bunch of files as ZIP archive, you basically have two options:
This should be fixed in the latest LTS-branches of our mysql2 fork, 0.2.x-lts and 0.3.x-lts...
Based on the Ruby Basics Card in the developer Curriculum Ruby is the programming language we use on the backend...
Instead of using Puppet exported resources you can use the puppetdb_query feature. This can result in more complex code...
When you are working with SVG files and ImageMagick you can get different results on different machines depending on which...
Schau dir den unter Inhalte verlinkten Udemy Kurs an. Die Zugangsdaten für Udemy bekommst Du von deinem Mentor. Überspring Inhalte...
In my case [...] the catalog is an XML that contains all kinds of possible products, categories and vendors and it...
The RSpec matcher tests if two HTML fragments are equivalent. Equivalency means: Whitespace is ignored Types of attribute quotes are...
We had a card that described how to install multiple mysql versions using mysql-sandbox. Nowadays with the wide adoption...
You can scale background images in CSS to the container size using background-size (Demo). Commonly, we use contain or...
5.4.0 2021-02-01 Compatible changes Add geordi branch command that checks out a feature branch based on a story...
We currently test most of our gems on Travis CI, but want to migrate those tests to Github Actions. This...