About this Guide
Boolean searching is the basis for all database and Internet searching. This guide explains Boolean searching and how you can make it work for you by making your searches more effective.
For examples of other search tips, go to:
- Last Updated Mar 20, 2013
Results too narrow? Too broad? Use this guide to learn how to focus your research and to make your searching more powerful.
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What is Boolean Searching?
George Boole's system which he developed in 1854 was met with criticism by the academic community or ignored. After being modified and expanded upon, the Boolean System became the system used to develop the modern electrical logic circuit, the basis for the computer. Boolean Searching is the system used to search computer files such as UNISTAR and databases available in Rod Library.
Below are links to sites that are useful in understanding the Boolean Operators and Boolean Searching.
- Boolean Tutorial (basic) by Colorado State University Libraries
- Advanced Boolean Tutorial by Colorado State University Libraries
- Boolean Searching -- the Operators AND, AND NOT, OR by Pandia of P&S Koch, Oslo, Norway
- Boolean Searching by Colorado State University Libraries
- Internet Tutorials: Boolean Searching on the Internet by State University of New York, University at Albany
- Searching with Boolean Logic and Proximity Operators by University of South Carolina, Beaufort Library
See also these closely related topics:
- Truncation Tutorial and Truncation and Proximity Operators by Colorado State University
- Linking Words with Adjacency and Searching for Word Variations (truncation and wildcards) by Victoria University Library
- Nesting by Victoria University Library
- Constructing a Search Statement by University of North Carolina, Asheville
You may also click on Help when using databases. These will often give you hints based on Boolean searching to help you search that database more effectively.