dbExpress is a database-independent layer that defines common interface to provide fast access to MySQL databases from Delphi and C++Builder on Windows and Mac OS X for both 32-bit and 64-bit platforms. For each supported server dbExpress provides a driver as an independent library that implements the common dbExpress interfaces for processing queries and stored procedures.
MySQL Workbench enables a DBA, developer, or data architect to visually design, generate, and manage all types of databases including Web, OLTP, and data warehouse databases. It includes everything a data modeler needs for creating complex ER models, and also delivers key features for performing difficult change management and documentation tasks that normally require much time and effort.
It can be used to stress HTTP, WebDAV, SOAP, PostgreSQL, MySQL, LDAP and Jabber/XMPP servers. Tsung (formerly known as IDX-Tsunami) is a free software released under the GPLv2 license. The purpose of Tsung is to simulate users in order to test the scalability and performance of IP based client/server applications. You can use it to do load and stress testing of your servers. Many protocols have been implemented and tested, and it can be easily extended. WebDAV, LDAP and MySQL support have been added recently (experimental).
DBSync for MySQL and DB2 is a database synchronization tool which performs two-way conversion and synchronization from MySQL databases to DB2 and from DB2 to MySQL. The tool is also applicable for MySQL database replication to another MySQL database and is quite adept at copying DB2 to another DB2 database.