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Boolean Operators

Boolean Operators. Valeria Urquijo Boolean Operators March 4, 2010. Index. You will see Boolean Creator Operators Or Operator And Operator Not Operator Tips Tips Credits. http://www.orbeon.com/download/blog/schema_boolean.jpg. Boolean Creator.

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Boolean Operators

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  1. Boolean Operators Valeria Urquijo Boolean Operators March 4, 2010

  2. Index • You will see • Boolean Creator • Operators • Or Operator • And Operator • Not Operator • Tips • Tips • Credits http://www.orbeon.com/download/blog/schema_boolean.jpg

  3. Boolean Creator • George Boole an English mathematician • Developed an algebra of logic • The algebra logic that has become the basis for computer database searches • Boolean is named after him http://www.unc.edu/depts/jomc/academics/dri/loc/Boole.jpeg

  4. Operators • Boolean uses operators to determine whether a statement is true or false. • The most common operators are and, or and not. • These three little words can be enormously helpful when doing online searches. http://www.le.ac.uk/li/images/boolean_geol.gif

  5. And Operator • And documents search • Documents with both words will appear. • Example: Hide andSeek • Not one ore the other word, but both have to be in the document on the search. http://homepages.uwp.edu/mano/Boolean.jpg

  6. Or operator • Or documents search • The greatest amount of matches • Documents with either Word. • Example: Hide and Seek • Search results have tu have one of the two words to apear. http://homepages.uwp.edu/mano/Boolean.jpg

  7. Not operator • The searchwillbelimited • One word wouldbesearchedand nottheotherat all. • Example: Hide not Seek • Search results with hide word and not at all with seek. Documents with seek will word seek will no appear. http://homepages.uwp.edu/mano/Boolean.jpg

  8. Tips • You should take time toreadthesearchtipsonthesite before using a search engine. • Use Boolean operators helped your search and been more accurate with your results. http://blogs.middlebury.edu/csoseniors/files/2010/01/helpful_tips_image.jpg

  9. Tips • The four favorite best search engine • Google • Yahoo! • Bing • Ask • To end Internet may not bethebest place tofindcertaininformationyou can use otherresources. http://www.epilepsyfoundation.org/local/massri/images/Quick-Tips_2.jpg

  10. Credits • http://www.learnthenet.com/english/html/31wsearc_3.htm • http://homepages.uwp.edu/mano/Boolean.jpg • http://www.le.ac.uk/li/images/boolean_geol.gif • http://www.unc.edu/depts/jomc/academics/dri/loc/Boole.jpeg • http://www.orbeon.com/download/blog/schema_boolean.jpg

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