Convert Rails SQLlite to use MySQL#

  1. In Gemfile: Replace gem 'sqllite3' to gem 'mysql2'

  2. Change the database configuration config/database.yml:

default: &default
  adapter: mysql2
  encoding: utf8
  pool: 5
  timeout: 5000
  username: <yourusername>
  password: <yourpassword>
  socket: /var/run/mysqld/mysqld.sock

development:
  <<: *default
  database: apiflysaa_dev

Check Socket#

mysqladmin -u root -p variables | grep socket

Giving Permissions#

GRANT ALL PRIVILEGES ON dbTest.* To
 'user'@'hostname' IDENTIFIED BY 'password';

Source: