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Many popular UNIX-like OSes ship with an acceptable version of SQLite3.
On Windows, if you installed Rails through Rails Installer, you already have SQLite installed.
You can do this by running the following in the This will fire up Puma, a web server distributed with Rails by default.
To see your application in action, open a browser window and navigate to
If you have no prior experience with Ruby, you will find a very steep learning curve diving straight into Rails.
Experienced Rails developers also report that it makes web application development more fun. It makes the assumption that there is a "best" way to do things, and it's designed to encourage that way - and in some cases to discourage alternatives.
If you learn "The Rails Way" you'll probably discover a tremendous increase in productivity.
If you persist in bringing old habits from other languages to your Rails development, and trying to use patterns you learned elsewhere, you may have a less happy experience.
The Rails philosophy includes two major guiding principles: The best way to read this guide is to follow it step by step.
All steps are essential to run this example application and no additional code or steps are needed. On mac OS open Terminal.app, on Windows choose "Run" from your Start menu and type 'cmd.exe'.