dbSketch

dbSketch the first data modeling tool specifically designed for application developers Ñnot DBAs, analysts, theorists, or posers.

dbSketch lets you design your schema as quickly as you can think, and lets you use any SQL trick you've ever invented.
- Fast, efficient, no-cruft design
- Physical database diagramming based on IDEF1x notation (like ERWin)
- Arbitrary SQL input lets you use any SQL trick
- Fits smoothly into your unique development and database environment
- Presents your design with formatting and output options
- Supports Oracle 9 and 10, MySQL 4 and 5, Postgres 8