BulkInsert

Use MySQL's "INSERT INTO...ON DUPLICATE KEY UPDATE" to do bulk insertions and updates of ActiveRecord data.

I was using similar functionality from the ar_extensions plugin, but that kept causing upgrade problems, and I don't need everything else it does.

A modern, simple and very fast Mysql library for Ruby - binding to libmysql

A library for bulk insertion of data into your database using ActiveRecord.

An easy to setup and flexible importer for Ruby on Rails

GoogleBig Query ActiveRecord Adapter & API client

A collection of Rails issue investigation and reproduction tools

MySQL JSON support for Rails 4

Get the power of ActiveRecord models, including validation, without having a table in the database.

Bring the speed back to your Active Record models!

Awesome patches backported for ActiveRecord MySQL adapters.

Boosts speed in ActiveRecord models with mysql by lazily instantiating attributes as needed.

This gem is deprecated, use activerecord-mysql-awesome.

serialize on steroids

Efficient bulk inserts with ActiveRecord

Abuse Sql database as Key-Value Store

Bulk Insert or Upsert for ActiveRecord 4 or 5