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Use of Boolean search operators, truncation symbols, and field search in the Voyager OPAC.

Use of Boolean search operators, truncation symbols, and field search in the Voyager OPAC.

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  • 1. OPAC Advanced Search Boolean Keyword Search in the OPAC David Kent, Librarian Peninsula College Library 2008
  • 2. Boolean search operators
    • OR
    • AND
    • NOT
    • These Boolean operators control how terms are combined.
    Dogs 10 results (all are about dogs) Dogs OR Cats 20 results (10 about dogs plus 10 about cats) Dogs AND Cats 5 results (all contain both dogs AND cats)
  • 3. Advanced OPAC Search Screen Advanced Search Tab
  • 4. Advanced OPAC Search Screen Boolean Operators: AND, OR, NOT By default Keyword Anywhere will search in all fields: Author, Title, Subject, Notes, Publisher, etc. All of these = AND Any of these = OR
  • 5. Sumo NOT Japan
    • The search query above would not retrieve the article cited below. Why not?
    • Sumo wrestling is catching on outside Japan. USA Today , Sept. 2006 v58 i2 p4
    The above article is relevant. But it would not be in the results list, because the dangerous Boolean NOT operator would automatically eliminate any article containing the word Japan .
  • 6. Using the truncation symbol ? retrieves variations of the word: lumbering, lumberyards, lumbermen, etc. Changing the field will control where the terms are searched. The Boolean AND combines the sets of synonymous terms to find only those containing both concepts.
  • 7. All titles retrieved have one or more of the words -- lumber or timber -- or have the word logging in the title, as the search query requested.
  • 8.
    • OR is more! Boolean
    • AND is less! Tribal
    • NOT is dangerous! Chant
    Use the Boolean search operators to improve search precision and retrieve relevant items .
  • 9.
    • For a Macromedia Flash Boolean tutorial
    • developed by Colorado State University, click here :
    • http://lib.colostate.edu/tutorials/boolean_info.html
    This ends this OPAC Advanced Search tutorial. For more OPAC tutorials, go here : http:// faculty.pc.ctc.edu/davidk /