DBML is a text format to represent the database in the database diagram. Basically, it describes the tables, their columns, and the table relations (based on table foreign keys). There are desktop and online tools which use the DBML text as input and produce graphical db diagrams as output.
To export your database structure to DBML, open the needed database and choose Export | Export Structure to DBML... menu.
You can choose which schemata (if supported by your database) and tables to export.
Notes
- Columns and table relations can have different set of attributes for different database types.
- Currently, Exportizer can process the relations between tables only for Oracle, SQL Server, PostgreSQL, MySQL, Interbase, and Firebird databases. For other databases, only tables and their columns are exported.