What is the difference between table join and foreign key join?

What is the difference between table join and foreign key join? What is the difference between table join and foreign key join?

Reply content:

What is the difference between table join and foreign key join?

Table join is a table join query.

Foreign keys are the relationships between tables.

When a table is connected to a multi-Table query, you can use SQL to control the connection between related fields in different tables.
Foreign keys are a constraint managed by dbms. If the foreign key of a field in a table is the field value in another table, dbms checks validity.