hydra_db_erd.puml

@startuml
hide circle
hide empty members

entity KURDE_NIE_ZAPISALEM_XD {
   * identifying_attribute
   --
   * mandatory_attribute
   optional_attribute
}

' zero or one
A |o--o| B

' exactly one
C ||--|| D

' zero or many
E }o--o{ F

' one or many
G }|--|{ H
@enduml