Database backup manager for dumping to and restoring databases from S3, Dropbox, FTP, SFTP, and Rackspace Cloud. Supports MySQL and PostgreSQL. A laravel specific package is also available for easy integration.

Includes a neat feature called "reversible migrations" allows you to just define the up() in migrations. Integrates into deploy/CI tools easily. Supports MySQL, Postgres, SQLite, SQL Server.

The Sequelize library provides easy access to MySQL, MariaDB, SQLite or PostgreSQL databases by mapping database entries to objects and vice versa. To put it in a nutshell, it's an ORM (Object-Relational-Mapper). The library is written entirely in JavaScript and can be used in the Node.JS environment.

Neo4j is an open source graph database, storing data in the nodes and relationships of a graph.

An intuitive graph-oriented model for data representation. A disk-based, native storage manager completely optimized for storing graph structures for maximum performance and scalability. Neo4j can handle graphs of several billion nodes/relationships/properties on a single machine and can be sharded to scale out across multiple machines. A powerful traversal framework for high-speed traversals in the node space. Can be deployed as a full server or a very slim database with a small footprint (~750k jar). A simple and convenient object-oriented API.

Unlike twitter's FlockDB, neo4j can handle multiple levels of hierarchy. However where FlockDB is better is it's low latency, high throughput and inherent distributed nature.

http://howfuckedismydatabase.com = priceless #database humour.

"Most users at one time or another have dealt with hierarchical data in a SQL database and no doubt learned that the management of hierarchical data is not what a relational database is intended for. The tables of a relational database are not hierarchical (like XML), but are simply a flat list. Hierarchical data has a parent-child relationship that is not naturally represented in a relational database table. In this article we will examine two models for dealing with hierarchical data in MySQL"

"Mysql Ajax Table Editor is an open source web application for easily editing MySQL tables & creating admin pages almost instantly. Besides the standard "add, edit, copy, delete, view" functionality, records can be paged, searched & exported to CSV. It is possible to JOIN multiple tables to generate a custom view with the help of a config file."

"SQLinForm automatically cleans up the formatting of SQL code for all major databases i.e. MySQL, ORACLE, etc. with over 50 formatting options.