#BOOLEAN SEARCH WORDS HOW TO#
Includes details on how to define your question, choose a database, refine your results, and save and document your search. If you are a Google user you might want to consult this GoogleGuide on Search Operators to help you conduct better Google searches. How to perform a considered and organised literature search. When you search using these operators, it is known as a Boolean search. Within Operator (W/x) - finds words within x number of words from each other, and in the order they are entered 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. These symbols are also known as logical operators and are mainly used in programming languages. The operators can be expressed in symbols as well as in words. They specify and/or link together certain conditions. Unlike the other operators, it is appended to the word to be affected. simple searches involve the use of a few key words ( called a search string) entered into the search dialogue box. Near operator (N/x) - finds words within x number of words from each other and usually it is regardless of the order in which they appear. Boolean operators are used to write logical expressions that test whether a specified condition is true or false. The asterisk serves as the truncation (or wildcard) operator. The symbols generaly used include: n or w or adj.Īdjacent (ADJ) - terms in the search box must appear in the record next to (adjacent to) each other in the same order as you enter them. Not all databases provide this option but if they do it can include: This is helpful when you don't want the preciseness of a phrase search but you also don't want the expansiveness of an AND search. Advanced search, on the other hand, uses filters (date, file type, location) and search criteria (all of these words, exact phrase, none of these words, only results) to generate a search result. This means you can locate one word within a certain distance of another. A Boolean string can be used in all different kinds of search engines to generate search results.
Some databases will allow the use of proximity or positional operators.
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