Maybe like 3-5 I think im right
This is about identifiers in a record referring to other records.
You can have many to one, one to one, many to many.
E.g., if you have two tables, Authors and Books, then a book record could have a reference to an author record. Since an author can write many books, this would be a many-to-one relationship.
You can carfully wedge something in between the key and gently pull up
Entry controlled loop - <u>The loop which has a condition check at the entrance of the loop, the loop executes only and only if the condition is satisfied is called as entry control loop.</u>
So, for and while loops are its examples.