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Information Technology Boolean Search Operators

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by

Lucie Goudie

on 14 February 2014

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Transcript of Information Technology Boolean Search Operators

What are Boolean Operators?
Boolean operators help you to find the best connection to resources within library databases.
Information Technology Boolean Search Operators
AND
AND- narrows the search. It finds resources with BOTH keywords.
OR
OR- widens the search. It finds resources with EITHER keywords. (It's great for related keywords/synonyms)
NOT
NOT- narrows the search. It LEAVES OUT resources without the keyword.
Using Boolean operators
Further Help
If you need further help using Boolean operators, drop and visit a Librarian at the
Research and learning point.
Boolean Operator types
We will focus on the two main types of Boolean operators.

Different Boolean operators change your connection making the search narrower or wider.
Different Boolean Operators.
AND
OR
AND
- Search for
Hacking AND Security
Finds results on
Hacking AND Security
Resources on Security
Resources on Hacking
OR
- Search for
E-mail OR electronic mail
Finds results on
E-mail OR electronic mail
Resources on
E-mail
Resources on
Electronic mail
NOT
- Search for
Psychopaths NOT Rapists
Finds results on
Psychopaths NOT Rapists
Resources on Psychopaths
Resources on Rapists
Tips:
Use cap locks for all Boolean Operators
Use parentheses ( ) with OR Operator
Combine one or more Boolean operators
Basic Search
Advanced Search
Tips:
Advanced search options allow for easy use of Boolean operators
Full transcript