|AND||Boolean operator combines all search terms||mother AND father|
|OR||Boolean operator finds either search term||salary OR wage|
|NOT||Excludes term to the right of the operator||pepsi NOT coke|
|Nesting||Indicates order of search; items in () are found first||(mouse OR rat) AND trap|
|Phrase searching||Searches for words in the order entered||"social media"|
|Truncation||Searches for the root word and various endings||teen*|
|Wildcard||Searches for a single character within / at the end of a word||wom?n|
|Field searching||Searching within a specific field of a record||Entering 'rowling' in the Author field to find documents written by the author Rowling|
|Limiters/filters||Narrowing a search (results) according to certain criteria||Using the 'Peer reviewed' filter to retrieve only peer reviewed documents|
An effective database search is a combination of well-chosen search terms, applying the search techniques listed above.
Topic: prevention of youth crime.
prevent* AND ("youth crim*" OR "juvenile delinquen*")
Topic: impact of television viewing on aggressive behavior in children.
(television OR TV) AND (“aggressive behavio?r” OR aggression) AND (child* OR kid?)