Entity-Relationship Diagrams (ERDs) model the structure of a database by showing entities (tables), their attributes (columns), and the relationships between them. They are the standard tool for database design, serving as blueprints before writing SQL. viz42 generates ERDs with proper cardinality notation (one-to-one, one-to-many, many-to-many) from natural language descriptions.
viz42 uses crow's foot notation via Mermaid's erDiagram syntax, which clearly shows one-to-one, one-to-many, and many-to-many relationships with proper cardinality symbols.
Yes. Mention column types and keys in your prompt, and viz42 will include PK, FK, data types, and constraints in the entity definitions.
Describe the many-to-many relationship in your prompt. viz42 will either create a junction table or show the direct M:N relationship depending on the level of detail you provide.