In Unified Modeling Language (UML)primary Keys Cannot by NULL

question 4

True/False

In Unified Modeling Language (UML)primary keys cannot by NULL.

---

Definitions:

Walter Cannon

A physiologist known for his work on the fight or flight response and for coining the term 'homeostasis' to describe the process of maintaining internal stability in an organism.

Hans Selye

A pioneering Hungarian-Canadian endocrinologist known for his research on the effects of stress on the human body, introducing the concept of the General Adaptation Syndrome.

Sublimation

The process where undesirable desires or thoughts are converted into behaviors or actions that society approves of.

Repressed Drive

Unconscious desires or impulses that have been pushed down or suppressed, often due to societal norms or personal fears.