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A line of text used to extract data from a database. The most frequent use of queries on the Internet involves the query languages used by search engines to locate information in a site or in the World Wide Web. Queries expressed in such languages consist of keywords separated by Boolean connectives. For example, the query ‘fibre optic’ AND ‘computer’ would find all the documents which contain the two adjacent words ‘fibre’ and ‘optic’ and the word ‘computer’.

Subjects: Computing.

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