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What are Boolean Operators?

What are Boolean Operators?. Ms. Reishus Fall 2009. What are Boolean Operators?. The most common Boolean operators are AND, OR, NOT They are used to combine search terms when doing research. And. Would everybody wearing Jeans, please stand up? # _____

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What are Boolean Operators?

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  1. What are Boolean Operators? Ms. Reishus Fall 2009

  2. What are Boolean Operators? • The most common Boolean operators are AND, OR, NOT • They are used to combine search terms when doing research

  3. And • Would everybody wearing Jeans, please stand up? # _____ • Would everybody wearing Sneakers please stand up? # _____ • Would everybody wearing jeans and sneakers please stand up? # _____

  4. Venn Diagram of AND Jeans Sneakers

  5. AND Explained • Using the operator AND between keywords will limit the results of a search because all the keywords have to be present in order for an item to be retrieved.

  6. OR • Would everybody wearing jeans please stand up #______ • Would everybody wearing sneakers please stand up #______ • Would everybody wearing jeans OR sneakers please stand up #______

  7. Venn Diagram of OR Jeans Sneakers

  8. OR Explained • Using the OR operator results in either or both of your search terms appearing in your results. • Using the OR operator will result in a larger number of retrieved items and therefore expands the search.

  9. NOT • The NOT operator forbids the word after it from appearing in the items resulting from your search. • Would everybody wearing Jeans but NOT sneakers, please stand up?

  10. Venn Diagram for NOT Jeans Sneakers

  11. NOT Explained • Not helps to limit your search because it takes out a category of undesirable results. • NOT or AND NOT thus narrows or limits a search by excluding the keyword immediately following it.

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