When searching online databases, you often get too many or too few results. Identifying keywords or phrases and then connecting them using Boolean operators (AND, OR, and NOT), along with the other ...

Boolean operators close Boolean operatorAND, OR and NOT. Used to build complex queries in a database. are used to combine relational operators to give more complex decisions.

The word NOT and its equivalent symbols are also prefix operators. The following are examples of prefix operators used with variables, constants, functions, and parenthetic expressions: When used to ...