Serena Williams has dominated womenâs tennis over the course of her career, winning 21 Grand Slam titles, racking up more than $77 million in prize money and earning the title of Associated Press Female Athlete of the Year four times, including 2015.
Superâs Theory of Life Stages Superâs theory of late adolescent and adult career development is based on two major elements: Life Role and Life Stages. Some important roles are studying and working, community service, home and family, leisure activities, and personal development.
This property is sometimes known as minimality or (better) irreducibility. A super key â  a primary key in general. The primary key is simply a candidate key chosen to be the main key. However, in dependency theory, candidate keys are important and the primary key is not more important than any of the other candidate keys. Non-primary candidate keys are also known as alternative keys. Consider this table of Elements: