rails db type
跳到 Types of Schema Dumps - The format of the schema dump generated by Rails is controlled by ... To load the schema from db/structure.sql , run rails ... ,(association_name)_type - 儲存多態關聯 所需的類型資料。 .... 要真正的建立一張資料表，需要執行： rake db:migrate ；要回滾則是執行： rake db:rollback 。 注意以上 ... , Also, I imagine these database adapters you referred to were written by the same people who wrote Rails, so they probably didn't need any ..., The attributes are SQL types, hence the following are supported: ... If you use Rails 4 and PostgreSQL, you can take advantage of these:.,跳到 Types of Schema Dumps - If :ruby is selected then the schema is stored in db/schema.rb. If you look at this file you'll find that it looks an awful lot like ... ,跳到 Types of Schema Dumps - If :ruby is selected then the schema is stored in db/schema.rb. If you look at this file you'll find that it looks an awful lot like ... ,所以，您只要更新手頭的原始碼，然後執行rake db:migrate，其餘的就交給Active .... 在這個混亂的時刻，聰明的Rails 知道，只有艾莉絲的兩項migrations 還沒做過，所以rake db:migrate 只會執行這兩項，雖然鮑 .... Active Record 有支援的型態（types） ... ,... :text end end. 完成後，執行 bin/rake db:migrate 便會實際在資料庫新增這個欄位。 ... type, 如果有這個欄位，Rails便會啟動STI功能(詳見ActiveRecord章節). ,Rails內建了其中最簡單的一個解法，只用一個資料表儲存繼承體系中的物件，搭配一個 type 欄位用來指名這筆資料的類別名稱。 要開啟STI功能，依照慣例只要有一個 ...
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 rails db type 相關參考資料
Active Record Migrations — Ruby on Rails Guides
跳到 Types of Schema Dumps - The format of the schema dump generated by Rails is controlled by ... To load the schema from db/structure.sql , run rails ... https://edgeguides.rubyonrails Active Record 基礎— Ruby on Rails 指南
(association_name)_type - 儲存多態關聯 所需的類型資料。 .... 要真正的建立一張資料表，需要執行： rake db:migrate ；要回滾則是執行： rake db:rollback 。 注意以上 ... https://rails.ruby.tw Is there documentation for the Rails column types? - Stack Overflow
Also, I imagine these database adapters you referred to were written by the same people who wrote Rails, so they probably didn't need any ... https://stackoverflow.com List of Rails Model Types - Stack Overflow
The attributes are SQL types, hence the following are supported: ... If you use Rails 4 and PostgreSQL, you can take advantage of these:. https://stackoverflow.com Rails Database Migrations - Ruby on Rails Guides
跳到 Types of Schema Dumps - If :ruby is selected then the schema is stored in db/schema.rb. If you look at this file you'll find that it looks an awful lot like ... https://guides.rubyonrails.org Ruby on Rails Guides: Migrations
跳到 Types of Schema Dumps - If :ruby is selected then the schema is stored in db/schema.rb. If you look at this file you'll find that it looks an awful lot like ... https://guides.rubyonrails.org Ruby on Rails Guides: Migrations（資料庫遷移） - Ruby Taiwan 文件
所以，您只要更新手頭的原始碼，然後執行rake db:migrate，其餘的就交給Active .... 在這個混亂的時刻，聰明的Rails 知道，只有艾莉絲的兩項migrations 還沒做過，所以rake db:migrate 只會執行這兩項，雖然鮑 .... Active Record 有支援的型態（types） ... https://guides.ruby.tw Ruby on Rails 實戰聖經| Active Record - 資料庫遷移(Migration)
... :text end end. 完成後，執行 bin/rake db:migrate 便會實際在資料庫新增這個欄位。 ... type, 如果有這個欄位，Rails便會啟動STI功能(詳見ActiveRecord章節). https://ihower.tw Ruby on Rails 實戰聖經| ActiveRecord - 進階功能
Rails內建了其中最簡單的一個解法，只用一個資料表儲存繼承體系中的物件，搭配一個 type 欄位用來指名這筆資料的類別名稱。 要開啟STI功能，依照慣例只要有一個 ... https://ihower.tw |