Identifying keywords or phrases and then connecting them using Boolean operators (AND, OR ... you will only get results that include all three search terms. Using NOT is another way to narrow a search ...

A search for data that meets several criteria by using the Boolean operators AND, OR and NOT (see Boolean logic). For example, the request: "Search for all Spanish and French speaking employees ...

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.

Using Parentheses to Control Order of Evaluation Even though SAS evaluates logical operators in a specific order ... moving outward until all parentheses have been processed. For example, suppose you ...