Features
Supports most JDBC compliant dbms (support missing? you can add your own)
Generates ER diagram for foreign keys
Generates ER diagram for implied relationships (name, type) of a column matches a primary key
Generates ER diagram for relationships based on rails naming conventions
Shows column relationship and actions
Shows routines (Functions/Stored procedures)
Shows views and definitions
Will render markdown present in comments
Allows for supplying additional metadata, see SchemaMeta
Present a set of found anomalies