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Database Searching

Boolean Operators

The three basic Boolean operators are ANDOR, and NOT.  Using them properly can help:

  • connect your search words together to either narrow or broaden your set of results
  • focus a search, particularly when your topic contains multiple search terms.

  • connect various pieces of information to find exactly what you're looking for

How do I use...

Search Order

Databases return results based on the commands (searches) you enter. Be aware of the logical order in which words are connected when using Boolean operators: 

  • Databases usually recognize AND as the primary operator, and will connect concepts with AND together first.
  • If you use a combination of AND and OR operators in a search, enclose the words to be OR-ed together in parentheses.



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