The ER diagram for a car rental system is a little complicated, but car rental systems are, by definition, complex. After some modifications, this could also be used as a cab reservation system, bus reservation system, and so on. Car Rental System is a platform that allows car owners to showcase their cars and vehicles that are open and ready to be rented; it is also very useful for those looking for cars to rent. The first step in developing the Car Rental System is to create the ER diagram for the car rental system, which will later serve as the foundation for creating the actual database.
