von Jan Kowalik Vor 13 Jahren
334
shop
In a database system, the primary focus is on managing various entities and their relationships. Key entities include items, orders, and users, each with specific attributes such as IDs, names, and statuses.
von Jan Kowalik Vor 13 Jahren
334
Mehr dazu
wykres
select data,count from order_pack where item-id = 'x' and data = 'last'
=> users.id
skala: 1-5
