You can view a database structure in the standard ERD (Entity Relation Diagram) form. Diagrams are available for all tables and schemas (databases). To view the Diagram for a full database schema, ...

Designed for database architects, developers, and analysts, this tool bridges the gap between technical database structures and clear visual representations. An interactive Entity-Relationship (ER) ...

Another visual tool found in SQLyog is the Schema Designer — this too is simple to use, permitting fast creation of database schema diagrams. Schema canvases can be exported as an image or printed.