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The Boolean operators, AND, OR, and NOT, help you construct a logical search. Boolean Operators: A Cheat Sheet. The circle diagrams that help illustrate the relationships between the sets used in Boolean logic were named after another mathematician, John Venn. (The shading represents the outcome of the Boolean operation.)
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BetaLearn how to use Boolean operators such as AND, OR, and NOT to refine your search results in databases and search engines. See examples, tips, and a table of common operators and their functions.
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BetaBoolean operators tell databases exactly how you want your search terms combined for the optimal results. There are only five Boolean operators and all library databases understand them. The chart below briefly describes their functions.
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BetaLearn how to use Boolean operators (AND, OR, NOT) to combine and manipulate search terms and retrieve specific information from databases and search engines. Explore the importance, multifaceted applications, and ethical considerations of Boolean operators in information literacy.
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BetaBoolean Operators Explained. Now let's go into a little more detail about each operator. "Quotation Marks" Quotation marks tell the database to take the phrase as a whole, and search for the words together, and in order. Example: Searching wild geese: Without quotation marks, the database finds the word wild and the word geese separately.
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BetaBoolean Operators. To search multiple keywords at once, you need to use connector terms, also called Boolean Operators. Using a Boolean Operator will tell the database to connect the terms together in your search. There are three Boolean Operators: AND: All keywords must appear in your results. AND will narrow down a search.
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BetaLearn how to use boolean operators to connect your keywords and define the relationship between your search terms. See examples of AND, OR, NOT and how they affect the number of results.
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BetaBoolean Example What it does; NARROW: AND: policy AND homelessness AND australia: only locates resources containing all three keywords: NOT-vikings NOT "tv show" NOT "tv series" education -preschool. eliminated information you do not want (e.g. locates resources about Vikings, not the TV series)" ""world health organisation" AND "immunisation ...
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BetaNote: Unlike Google, most academic databases do not work well when you type many words or complete sentences in one search box without Boolean operators. It is best to separate terms by Boolean operators or use the database's "Advanced Search" feature to put your terms on separate lines, as shown below this chart. 82,246
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BetaB oolean Operators are words that connect search terms or key words together to broaden or narrow the results retrieved. In library research they are often used with the library's research databases or the library catalog. The three Boolean operators are AND, OR, and NOT.. AND narrows your search results by limiting your results to those that contain both words connected with AND.
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