Answer Last Updated: Aug 25, 2016 Views: 31
Boolean operators are connecting words that aid in research in the Databases and Indexes.
They connect your keyword searches and will either narrow or broaden the search results. By using the Boolean operators you will increase and focus the number of relevant results.
The Boolean operators are AND, OR, NOT
AND narrows your search results. Retrieves articles or records containing all the keywords used in the search query
Kennedy AND Cuba
In this search the database will retrieve all the records that contain the keyword Kennedy and the keyword Cuba
OR, will expand your search results by connecting similar concepts. It retrieves articles or records containing either of the keywords, very useful when searching synonyms.
Cancer OR neoplasm
In this search using OR the database will retrieve all records the contain the keywords cancer or neoplasm
Not, will narrow your search, but will exclude certain terms from your results. So use with caution
Kennedy NOT Cuba
In this search using NOT the database will retrieve only records that contain the term Kennedy eliminating all records that contain the term Cuba.