Install this gem and require 'teradata' with JRuby on Rails.

A useful ActiveRecord extension to handle columns containing large amounts of data

Adds support for lazy-loading columns in Active Record models

Something with the combination of Rails 3.1, Mysql2 0.3.x, Capybara, Selenium/Webkit/etc causes Mysql to raise exceptions where the connection is waiting on a result. This gem provides an auto-retry capability with the Mysql2Adapter to retry any query execution up to 5 times. Thi...

An ActiveRecord adapter for MySQL, based on mysql gem.

Adds a :uuid column to ActiveRecord MySQL2 Adapter. Store UUIDs as 16 bytes binary column.

It is a library that performs extended verification when an error occurs when executing SQL.

Implements the Null Object Pattern for nil values in ActiveRecord associations.

PostgreSQL PGCrypto support for ActiveRecord models.

Several extensions to ActiveRecord's PostgreSQLAdapter.

Allows polymorphic loading of has_many through objects

PostGIS Type support for ActiveRecord

This gem adds support to the ActiveRecord (3.x and 4.x) for composite types.

citext support for rails

ActiveRecord support for the PostgreSQL cube data type.

Provides some support for PostgreSQL cursors in ActiveRecord.

A simple ActiveRecord extension to support where with comparison operators (`>`, `>=`, `<`, and `<=`).

Provides detailed insights into how your code interacts with the database by hooking into ActiveRecord.

Get raw data from ActiveRecord

Provide access to PostgreSQL's sequences