Although each electronic database is unique, all databases follow some general principals. This is especially true when it comes to searching techniques.
Most databases use Boolean operators, truncation, and wildcards to help refine searches.
Learning the basics of these three operations will help you use any database more easily. Boolean Operators Boolean operators use logical relationships to refine a search in a search engine or a database. Use AND to find records that contain two search terms. This narrows your search because BOTH terms must be found. OR widens the scope of your search and it should be used with care, because it can produce large sets of results.