Pro Active Record helps you take advantage of the full power of your database engine from within your Ruby programs and Rails applications. ActiveRecord, part of the magic that makes Rails framework so powerful and easy to use, the element model of Rails model / view / controller framework. However, if you are developing in Ruby without Rails, or spread to the legacy databases designed without Rails in mind, or you just want to take advantage of database-specific features such as large objects and stored procedures, you need an in-depth knowledge of ActiveRecord is found in this book.