ER-Diagram.md

+Umbenennung (Medium --> Boat):
+
+boat_type (**id**, min_persons, max_persons, name) 
+
+boat(**id**, blocked, name, comments, boat_type_id)
+
+discipline (**id**,name)
+
+borrow_entry (**id**, begintime, endtime, destination,comments ,boat_id,discipline_id) 
+
+boat_type_to_discipline (**boat_type_id,discipline_id**)
+
+boat_user(**borrow_entry_id,surname,name**,phone_number,email,street,street_number,plz,city) 
+
+person (**id**,surname,name,username,role_flag)
+
+![ER_new__1_](uploads/174340ece4b7e8abcb7b3a1fc38e8e0d/ER_new.png)
+
+
+
+
+
 
 Diagram: