I would like to view the data in my DB while developing with Rails (actually in all 3 of them development, test and production). I have not touched the configs, so it should
You have neglected to mention the OS you are using.
One way is to use the sqlite3
command in your terminal.
sqlite3 db/development.sqlite3
However, for things like inspecting your rows, you would be better using a rails console.
rails c
> User.all # Where user is your model.
NOTE: Do not change your DB schema directly through sqlite3, something you may be used to if you come from a different web stack background. This is because the next time you run the migrations, the state will be different to what rails expects.