rails查看数据库是否建立好

$ rails c
Running via Spring preloader in process 8379
Loading development environment (Rails 5.1.5)
[1] pry(main)> ActiveRecord::Base.connection.instance_variable_get :@config

  SQL (0.8ms)  USE [smartdrain_dev]
=> {:adapter=>"sqlserver",
 :encoding=>"utf-8",
 :pool=>5,
 :host=>"localhost",
 :database=>"smartdrain_dev",
 :username=>"sa",
 :password=>"",
 :port=>1433,
 :timeout=>10,
 :mode=>:dblib}
[2] pry(main)> exit

也可以直接使用navicat等数据库可视化软件会更方便.