Create ERD
a.Create table Articles with attributes:
I.Id as Primary Key
II.Barcode
III.Name
b.Create table Cart with attributes
I.Id as primary key
II.Cart Number
III.Created Date
c.Create table CartElements with attributes
I.Id as primary key
II.CartId as foreign key to Cart table
d.Create table CartElementRelations
I.Id as primary key
II.CartId as foreign key to Cart Table
III.ArticleIdas foreign key to Article Table
e.Export your file as PDF
I.Click file
II.Click export and choose pdf