From Avalon Team:
Avalon SQL Editor is a platform-independent low-cost tool, designed for database developers. Currently, it supports: Microsoft SQL Server, Oracle, HSQLDB, MySQL, PostgreSQL, DB2, Firebird, and Derby. Supported features Database objects (tables) tree with their properties shown SQL Editor with syntax highlighting, code completion, word casing. Result Pane with export. Version 4 has user interface updated; performance boosted; and added SQL Server 2005 Driver.