2020-10-18| YouTube explanation (German) | IHK final exam Summer 2001, GH1 Exercise 4
A carsharing company provides two Excel tables and an invoice. Those artifacts are used for creating invoices for their customers.
Based upon this information we have to model the ER diagram.
Those two tables are containing the stamdata:
This is the invoice the carsharing company sends to its customers:
How has the ER diagram to be modelled?