This is why it’s important to understand and master these search operators. Why It’s Called Boolean. Boolean refers to George Boole, a 19th-century mathematician who invented Boolean logic.

And secondly, mastering the basics of creating Boolean queries doesn’t require any technical background at all. Boolean terms explained. Before creating your first query, you should get comfortable ...

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 ...

Save guides, add subjects and pick up where you left off with your BBC account. The most common Boolean operators are AND, OR and NOT (always in capitals). They can be used to get more accurate ...