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Transcript of BOOLEAN OPERATORS
to relate the terms in specific ways that will affect the results of a search.
Boolean operators are terms that create relationships between concepts and words.
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PRINCE GEORGE'S COMMUNITY COLLEGE
Eliminates articles containing the second term even when the first term is present; this will
Use quotation marks " " before and after a phrase, two or more words that must be together in a defined order.
This lets the database know that you want to search for this phrase, and not the individual words that make up the phrase.
Using Nesting with Operators
Use nesting to build a more complex search by putting keywords and/or phrases in parentheses to determine their relationship when more than one operator is used.
Retrieves only articles that contain all the terms and will
Retrieves articles with
of the terms and will
Accokeek Hall - Reference Desk (1st Floor)
“child obesity” AND Maryland
“child obesity” AND “eating disorder”
“video games” AND children
“child obesity” OR “overweight children”
children OR juveniles
“attention deficit hyperactive disorder” OR hyperactivity
TIP: use this boolean operator with synonyms
obesity AND children NOT adults
depression AND teen NOT adults
“video games” AND teenagers NOT children
“obsessive compulsive disorder”
(children AND teenagers) AND (ADHD OR hyperactivity)
(children AND “video games”) NOT (teens OR adults)
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