what do you mean by compound key & composite key in dbms?

Question

A compound key is a key whereby any part of the key is a foreign key.

A composite key is made up of elements that may or may not be foreign keys.

am I right?

Answer 1

when twp or more fields works together to uniquely identify the records of the table then all those fields collectively known as composite key
//for compound key , here is a link
https://www.sqa.org.uk/e-learning/MDBS01CD/page_18.htm