Entity Relationship diagram
For an Entity Framework or EF Core project, you can create a graphic representation of the database model and the relationships between entities, including one-to-one and one-to-many relationships.
Right-click the editor adornment next to any EF entity and choose Show Entity Relationship Diagram.
If the adornments are disabled, choose ReSharper | Architecture | Show Entity Relationship Diagram from the main menu.
Relationships between entities are displayed using Crow's foot notation. The diagram also highlights potential problems of specific fields:
Possible performance issues due to unlimited string length are highlighted in yellow.
Possible dependency loops are highlighted with red.