[RAILS] [Output] About the database

I looked back on the database, so I will write it here as well.

When making a table in the terminal $ rails g model Post content :text Post is the model name content is the column name text is the data type text means a long string, that is, what goes into content is text (long character). Or "Hello"

If you run this in a terminal, you will find two files in model and migrate

    1. "2020 ..._ create_posts.rb" is created in migrate

When I open the file, it looks like this dif change create_table posts do |t| t.text:content


The second is not created unless you do something Write rails db: migrate.

that's all

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