活动记录迁移rails

代码示例

如何创建迁移rails

rails g migration AddPartNumberToProducts

如何在ruby中创建SQL表

def self.create_table
    sql = <<-SQL
      CREATE TABLE IF NOT EXISTS IF NOT EXISTS students (
        name TEXT,
        grade TEXT
      )
    SQL
    DB[:conn].execute(sql)
  end

类似页面

带有示例的类似页面

为什么在ruby中使用create table

rails执行ActiveRecord::Schema。定义

rails从哪里获取用户迁移

ruby on rails数据库迁移

带有类型字段的rails activerecord表

rails新迁移

其他语言

此页面有其他语言版本

empty row

Русский

..................................................................................................................

Ссылка

English

..................................................................................................................

Link

Italiano

..................................................................................................................

Link

Polski

..................................................................................................................

Link

Română

..................................................................................................................

Legătură

한국어

..................................................................................................................

링크

हिन्दी

..................................................................................................................

लिंक

Français

..................................................................................................................

Lien

Türk

..................................................................................................................

Atıf

Česk

..................................................................................................................

Odka

Português

..................................................................................................................

Referênci

ไทย

..................................................................................................................

เชื่อมโยง

Español

..................................................................................................................

Referencia

Slovenský

..................................................................................................................

Odkaz

Балгарскі

..................................................................................................................

Спасылка

Íslensk

..................................................................................................................

Link

受欢迎的此类别

标籤的相关热门网页

empty row