Database Systems
AASM - State machines for Ruby classes (plain Ruby, ActiveRecord, Mongoid, NoBrainer, Dynamoid)
Composite Primary Keys support for Active Record
PL/pgSQL function to get the ocurrences of a recurring event
For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.
Seamless multi-primary syncing database with an intuitive HTTP/JSON API, designed for reliability
The Jdbi library provides convenient, idiomatic access to relational databases in Java and other JVM technologies such as Kotlin, Clojure or Scala.
help to kill N+1 queries and unused eager loading
Free and Open Source, Distributed, RESTful Search Engine
A Common Lisp PostgreSQL programming interface
Migrate to PostgreSQL in a single command!
MongoDB object modeling designed to work in an asynchronous environment.
A demonstration of the Redis database.