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Boolean Operators | Quick Guide, Examples & Tips. Published on May 2, 2022 by Eoghan Ryan.Revised on May 31, 2023. Boolean operators are words and symbols, such as AND or NOT, that let you expand or narrow your search parameters when using a database or search engine. When you search using these operators, it is known as a Boolean search.
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BetaFor example, you could search multi-infarct dementia by using Dementia NOT Alzheimer's. But be careful using this because you would eliminate records discussing both types of dementia, as all articles discussing Alzheimer's are eliminated. MIXING BOOLEAN OPERATORS -- "NESTING" Nesting, or mixing the Boolean operators, is a way to combine ...
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BetaBoolean logic defines logical relationships between terms in a search. The Boolean search operators are and, or and not. You can use these operators to create a very broad or very narrow search. And combines search terms so that each search result contains all of the terms. For example, travel and Europe finds articles that contain both travel ...
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BetaTo search for a word exactly as you typed it, use the pound symbol (#) at the beginning of the word. For example, type #damage to retrieve damage but not damages. The pound symbol will turn off plurals and equivalents. PHRASE (“ ”) To search for a phrase, use quotation marks (“ ”). For example, type “res ipsa loquitur” to retrieve ...
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BetaExample: “Boolean operators NEAR/5 information literacy” will return documents where “Boolean operators” and “information literacy” appear within five words of each other. The Importance of Boolean Operators in Information Literacy. Understanding and using Boolean operators effectively is a crucial skill in information literacy.
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BetaExamples of each term and search strategy are given below. A few tips to start: Three Boolean operators are recognized by most databases: AND, OR, and NOT; The operators must be written in ALL CAPS (there may be exceptions, but this is good practice and helps you keep track of your search terms)
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BetaExample: Java AND Oracle AND SQL AND AJAX. On most Internet search engines and LinkedIn, every space is an “implied AND,” and you don’t have to type it, as every blank space is interpreted as an AND operator. Example: Java Oracle SQL AJAX. Bonus: You can use the ampersand (&) as the AND operator on Monster. Boolean Search Operator: OR
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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. ... Click on the below tabs to learn more and see examples of Boolean Operators. AND; OR; NOT; AND. AND is the most ...
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BetaBoolean Logic is the application of AND, OR and NOT operators to a search to improve its precision. It is named after the 19th century mathematician George Boole. AND. The AND operator will. ... For example, if a search on substance abuse includes "NOT alcohol" and, an author states that, "this paper will not discuss alcohol abuse ...
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BetaWithout the quotation marks, clear and present danger would be interpreted as a boolean search for clear and present danger. The words before, after, and between Boolean operators are treated as separate phrases (implicitly quoted). Noise Words. If a phrase contains a noise word, dtSearch will skip over the noise word when searching for it.
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