MetaWhere offers the ability to call any Arel predicate methods (with a few convenient aliases) on your Model's attributes instead of the ones normally offered by ActiveRecord's hash parameters. It also adds convenient syntax for order clauses, smarter mapping of nested h...

Easy SQL based report generation with the ability to accept request parameters and render multiple formats.

Adds missing native PostgreSQL data types to ActiveRecord and convenient querying extensions for ActiveRecord and Arel

Ferry is a data migration and visualization command line tool rubygem that seeks to simplify the increasingly prevalent big data problems for developers

Build complex SQL queries by defining each subquery separately. Query::Composer will then compose those subqueries together, nesting as needed, to produce the final SQL query.

Generates action methods to provide clean tables.

ActiveRecord Amazon Timestream Adapter

ActiveRecord adapter for Crate, the distributed database for Docker.

Just an ActiveRecord Adapter for the Appengine Datastore. Create Rails3 application: rails new app_name -m http://siddick.github.com/datastore/rails3.rb

An ActiveRecord extension for enabling SQL_CACHE and SQL_NO_CACHE in MySQL queries

Convert MongoDB query to Arel for PostgreSQL + JSON

Makes it easy to set a role strategy on your User model in Active Record

Simply conditions DSL for ActiveRecord

Hive adapter for ActiveRecord

Oracle enhanced adapter with schema config support for ActiveRecord (Using this gem, you can specify schema details in database.yml). This gem is a tweaked version of original activerecord-oracle_enhanced-adapter gem.

This gem provides the Rails 3 with database adapter for AWS RedShift.

This gem provides the Rails 3 with database adapter for AWS RedShift.

Fork of SQL Server 2005 and 2008 Adapter For ActiveRecord. Adds support for SQL Server 2000.

SQL Server 2005 and 2008 Adapter For ActiveRecord. Forked in order to disable unicode.

Easy and performant aggregation for rails