...USA), Singapur(Singapur), Dublin(Irland), (bestimme den Preis selbst) Dieter und Judith reisen für 14 Tage nach New York Karl reist für 30 Tage nach Singapur Maria reist für...
...Tage nach Dublin und 7 Tage nach New York Judith reist 14 Tage nach Singapur Lass dir mit einem SELECT alle Urlaube anzeigen. Dabei sollen folgende columns sichtbar sein: Vorname...
Da wir für einige Übungsaufgaben Dockercontainer benötigen lernst du in diesem Kapitel die Basics zu Docker. Hier vermitteln wir nur...
In diesem Kapitel wollen wir uns die Struktur des Linux Dateisystems ansehen. Damit ist in diesem Fall nicht das Dateisystem...
...was damit gemeint ist. Erläutere 3 Nutzungsszenarien Du verstehst grundsätzlich IAM Identity Providers. Erläutere 1-2 Beispiele für was diese verwendet werden können Verstehe warum man AWS Organizations braucht und...
...der Inhalte sind ggf. sehr umfangreich. Versuche dich an den Zielen zu orientieren. Kapitel 13 und 14 aus "The Book of Kubernetes" von Alan Hohn Configure Liveness, Readiness and Startup...
Webseiten und Applikationen, die auch häufig international verwendet werden, können von einem CDN profitieren. Cloudfront ist auch nützlich, wenn eine...
Wir wollen verstehen, welche Hardware-Ressourcen uns zur Verfügung stehen und wie wir mögliche Engpässe und Probleme identifizieren können. Grundsätzlich...
Hat man mehrere Cloud Platformen und OnPremise Systeme, müssen diese unter Umständen miteinander verbunden werden. Amazon bietet eine Auswahl an...
Our CI setup frequently sees this error while running yarn install: yarn install v1.22.19 [1/4] Resolving packages... [2/4] Fetching packages... error An unexpected error occurred: "https://registry.yarnpkg.com/typescript/-/typescript-3.9.7.tgz: unexpected end...
...caused by Yarn not retrying npm disconnects which will not be fixed in Yarn 1. Assuming you don't want to upgrade to Yarn 2, here are some workarounds for...
...hat makandra für seine Trainees erworben und du findest diese im Google Drive. Kapitel 12.3 aus dem LPI-Buch: https://drive.google.com/drive/folders/1hUcRPZ_lGtJoFl6VU8R4nbguxTbK7QSh Kapitel 16: https://drive.google.com/drive/folders/1Y80MbcTiZ_1EMsaOc7m9NQIJepp9rCu2
When RubyMine reports Rubocop returning "exit code -1", upgrading Rubocop can be the fix: gem install rubocop "The logs" can...
New versions of wkhtmltopdf dissallow file:// URLs by default. You can allow them by passing --enable-local-file-access.
...llamas,cats,mice} Removing values Use the array_remove function (Postgres 9.2+) to remove 1 value from the array (all its occurences, should it appear more than once):
{dogs} Bob {llamas} Replacing values Postgres 9.3+ offers array_replace. It will find 1 value (again all occurences) and replace it with 1 given other value. UPDATE users SET...
Siehe Gems, bundler, rbenv [1d] im Developer Curriculum...
We stopped using CoffeeScript a while ago, but older projects still use version 1 which transpiles to ES5. This means that examples for transpiled results or the "Try CoffeeScript...
...working on older projects may be somewhat hard. Here are some links to version 1 documentation: http://coffeescript.org/v1/ Fully functional If this ever goes away, here are some alternatives...
The way Rational#to_s works on Ruby has changed from Ruby 1.9 on. Here is how to get the old behavior back. You may want this for things where...
...What's happening? Converting a Rational to a String usually does something like this: 1.8.7 > Rational(2, 3).to_s => "2/3" 1.9.3 > Rational(2, 3).to_s => "2/3" 2.0.0 > Rational...
...you have problems installing a gem and get a error collect2: error: ld returned 1 exit status it's due to missing development headers of a library (ld is the...
...compiling generator.c linking shared-object json/ext/generator.so /usr/bin/ld: cannot find -lgmp collect2: error: ld returned 1 exit status make: *** [generator.so] Error 1 make failed, exit code 2 Gem files will remain...
...the slave from the ground up. stop slave; set global sql_slave_skip_counter = 1; start slave; But what if you have multiple errors which you want to skip? (e.g...
...masters which sync each other) Still do not use a value higher than 1 for sql_slave_skip_counter! Why? Because you can't be sure (without looking into the...
...of times, maybe thousands of times. Here's how to reproduce the issue: Example 1 # bad code (Time.current .. Time.current + 1.hour).include?(Time.current) # Use Range#cover? instead of Range#include? since...
...the former does no typecasting into integers. (Time.current .. Time.current + 1.hour).cover?(Time.current) Example 2 # bad code Post.where(:created_at => min_date.beginning_of_day .. max_date.end_of_day) # Use 'BETWEEN x AND y...
...records in has_many associations, but none feels smooth. However, when your limit is 1, there is an elegant solution: Simply add validates_uniqueness_of :association_id to your join...
RSpec 1 (Rails 2) With the most recent spec_candy.rb helpers you can say: User.stub_any_instance(:foo => :bar) user = User.new user.foo # => :bar RSpec 2 (Rails 3) RSpec 2 comes with...
This error occurs when passing an object instead of a string to Jasmine's describe(): # Bad describe(HoverClass, function() {...
I encountered a bug in RSpec 1.x where stubbed class methods ("static methods") would not be unstubbed before the next example, causing it to fail. This behavior can come...
...following error after updating the selenium-webdriver gem: wrong number of arguments (0 for 1) (ArgumentError) /home/pointoo-dev/.rvm/gems/ruby-1.8.7-p374/gems/selenium-webdriver-2.35.1/lib/selenium/webdriver/common/platform.rb:183:in `open' /home/pointoo-dev/.rvm/gems/ruby-1.8.7-p374/gems/selenium-webdriver-2.35.1/lib/selenium/webdriver/common/platform.rb:183:in `ip' /home/pointoo-dev/.rvm/gems/ruby-1.8.7-p374/gems/selenium-webdriver-2.35.1/lib/selenium/webdriver/common/platform.rb:196:in `interfaces'