A one-to-many unary relationship in an E-R diagram can be handled within a single table in the conversion to a relational database design.

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In a one-to-many unary relationship, one entity has multiple instances of a particular attribute. This can be represented in a single table in a relational database design by adding a foreign key that references the primary key of the same table, indicating that the attribute is associated with another instance of the same entity. Therefore, a one-to-many unary relationship can be handled within a single table in the conversion to a relational database design.

A One-To-Many Unary Relationship in an E-R Diagram Can Be