Enumerations
Let’s learn a little about enumerations.
We'll cover the following...
Simple enumerations
In all application domains, there are string-valued attributes with a fixed list of possible string values. These
attributes are called enumeration attributes, and the fixed value lists defining their possible string values
are called enumerations. For instance, when we have to manage data about people, we often need to include
information about their gender. The possible values of a gender attribute may be restricted to one of the
enumeration labels “man”, “woman”, and “other”, or to one of the ...