Searching Part 3 Video. Boolean Operators Library databases use Boolean operators to combine keywords in database searches. For more information about Boolean operators and how to effectively use them, see the following:. Please use the navigation on the left to click through the tutorial.
Report a problem. For best results, only use the OR within a search box. The AND is placed automatically between the search boxes. An example search for violence on television using boolean terms might look like this:. First search box: TV or television or mass media. Second search box: violence or aggression. Walden U Library. Advanced Search. Print Page Report a broken link. Boolean terms Boolean terms sometimes called Boolean operators or command terms connect your keywords to create a logical phrase that the database can understand.
NOT masters programs Note: You do not have to capitalize and, or, and not in your searches. OR The OR operator: finds different ways to phrase a concept expands your search increases results Example: school leadership OR at risk students OR academic progress Finds articles that may talk about any one of these topics does not have to include them all. It can remove relevant results.
Tips and Shortcuts What does "Boolean" mean? Pronunciation: BOO-le-un. OR searches find one term or the other. Searching on dengue OR malaria OR zika returns all items that contain any of the three search terms. Returns a large number of results. NOT eliminates items that contain the specified term. Searching on malaria NOT zika returns items that are about malaria, but will specifically NOT return items that contain the word zika.
This is a way to fine-tune results. Using Boolean Search with Exact Phrases If you're searching for a phrase rather than just a single word, you can group the words together with quotation marks.
When to use parentheses? Every item returned would mention zika, and either dengue or malaria. As the zika virus has only recently been a serious issue, this would limit the number of results.
0コメント