mysqlblasy is a Perl script for automating MySQL database backups. It uses "mysqldump" for dumping mysql databases to the files sytem. It was written with automated usage in mind. For example, it is silent during operation, and only produces noise on errors/problems. It rotates backups automatically to prevent the backup disk from getting full when the administrator is on vacation (or is lazy).
deltasql is a tool to synchronize databases with source code, which helps to keep database evolution under control. While developing mid-sized or big applications, developers make changes to the data model that go along with changes to the source code. From time to time, branches of source code are done to stabilize the code that will go to production. A sort of data model branch is also needed. deltasql provides a simple way to collect all scripts that change the data model and means to handle data model branches. The deltasql server runs on Apache and is backed by MySQL.
MySQL Workbench is a cross-platform, graphical database modeling tool for MySQL. It allows you to create database models from scratch as well as by importing existing databases from SQL or DBDesigner4 models. You can then generate SQL code to CREATE databases, ALTER them, and export in various image formats and PDF/PS. Its extension system allows writing plugins and scripts in Lua, Python, and C++.
Nextls is a console application that keeps track of your music collection using a MySQL database to store information such as length, bitrate, metadata, and where on the hard drive it is located. When Nextls is launched, it will figure out any changes done since the previous run and update the database accordingly. The database is very simple to work with, and there also exists a sister project in Nx2 that will allow you to take your database online and stream your music from a Web browser.
JumpBox for the MySQL Relational Database includes MySQL 5 along with PHPMyAdmin set up and ready to run. It's a great tool for developing database backed applications, and can also be used along with other JumpBoxes if you need to move the database into a separate virtual machine.