company
users
PK
user_id
name
PK
firstname
address
lastname
email
email
phonenumber
password
status
status
many-to-oe
creationdate
one-to-many
items
invoices
PK
PK
item_name
id
description
creationdate
quantity
user_id(FR)
unit_price
total_amount
total_price
status
invoice_id
due_date
user_id(FR)
payment_date
one-to-many