With SQLreport you can manage query results and convert things.

SQLRunner allows you to load your queries out of SQL files, without using ORMs.

A gem that allows for simple SQL-based search and sort functionality

Sequence number generation in Rails

The author was too lazy to write a description

Retrieve SQL values using Active Record query interface but without instantiation of AR-objects

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Squeel unlocks the power of ARel in your Rails 3 application with a handy block-based syntax. You can write subqueries, access named functions provided by your RDBMS, and more, all without writing SQL strings. I'm trying to push a version of this gem, so that bundl...

"Squirm facilitates using Postgres stored procedures with Active Record."

Write-through and Read-through Cacheing for ActiveRecord

Provide simple helpers on persist values in redis for performance. Works with ActiveRecord.

Stackflame provides a simple API to deal with Flamegraph of stackprof.

Stackify APM for Ruby

Fancy redis-backed caches

This gem is a thin wrapper of stackprof and provides simple API to see profiling result quickly.

A transactional outbox implementation for Ruby/ActiveRecord

ActiveRecordを単体で動かす時に使う起動処理

A thin wrapper to use Rails Migrations in non Rails projects

StarKit Banking Interface

A tiny library for making ActiveRecord models into state machines