database.yml.example

 

database.yml.example mysql2

 

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# MySQL. Versions 4.1 and 5.0 are recommended. # # Install the MySQL driver: # gem install mysql2 # # And be sure to use new-style password hashing: # http://dev.mysql.com/doc/refman/5.0/en/old-client.html development: adapter: mysql2 encoding: utf8 reconnect: false database: test-mysql2_development pool: 5 username: root password: socket: /tmp/mysql.sock   # Warning: The database defined as "test" will be erased and # re-generated from your development database when you run "rake". # Do not set this db to the same as development or production. test: adapter: mysql2 encoding: utf8 reconnect: false database: test-mysql2_test pool: 5 username: root password: socket: /tmp/mysql.sock   production: adapter: mysql2 encoding: utf8 reconnect: false database: test-mysql2_production pool: 5 username: root password: socket: /tmp/mysql.sock

database.yml.example postresql

 

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# PostgreSQL. Versions 7.4 and 8.x are supported. # # Install the pg driver: # gem install pg # On Mac OS X with macports: # gem install pg -- --with-pg-config=/opt/local/lib/postgresql84/bin/pg_config # On Windows: # gem install pg # Choose the win32 build. # Install PostgreSQL and put its /bin directory on your path. development: adapter: postgresql encoding: unicode database: test-postgres_development pool: 5 username: test-postgres (or your username if PostgreSQL installed by Homebrew) password:   # Connect on a TCP socket. Omitted by default since the client uses a # domain socket that doesn't need configuration. Windows does not have # domain sockets, so uncomment these lines. #host: localhost #port: 5432   # Schema search path. The server defaults to $user,public #schema_search_path: myapp,sharedapp,public   # Minimum log levels, in increasing order: # debug5, debug4, debug3, debug2, debug1, # log, notice, warning, error, fatal, and panic # The server defaults to notice. #min_messages: warning   # Warning: The database defined as "test" will be erased and # re-generated from your development database when you run "rake". # Do not set this db to the same as development or production. test: adapter: postgresql encoding: unicode database: test-postgres_test pool: 5 username: test-postgres (or your username if PostgreSQL installed by Homebrew) password:   production: adapter: postgresql encoding: unicode database: test-postgres_production pool: 5 username: test-postgres password:

database.yml.example sqlite3

 

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# SQLite version 3.x # gem install sqlite3 development: adapter: sqlite3 database: db/development.sqlite3 pool: 5 timeout: 5000   # Warning: The database defined as "test" will be erased and # re-generated from your development database when you run "rake". # Do not set this db to the same as development or production. test: adapter: sqlite3 database: db/test.sqlite3 pool: 5 timeout: 5000   production: adapter: sqlite3 database: db/production.sqlite3 pool: 5 timeout: 5000

come from 

https://gist.github.com/erichurst/961978

 

http://rubyinrails.com/2014/01/database-yml-rails/