Logic operators
ELTE, XKT-101, 2008.02.26., notes Logic
operators: Allows you to
search for terms based on their relationship.
OR: Retrieves all records that contain at least one of the search terms (A or B).
Generally used for searching synonyms (education OR training OR teaching).
AND: Retrieves all records that contain all of the search terms (A and B).
Very used and popular, especially for searching for multiple terms (Tolkien AND novel)
NO: Eliminates a sarch term or group of search terms form the results. (Tolkien NO novel)
Used generally to eliminate unwanted search results.
Note: Always enter a space on both sides of a logical operator.