About Search Statements
Consists of a) literal words and b) logical words
Literal words are key words that are important to the topic. For instance, you want information on head injuries that result
from skiing accidents. The literal (key) words you should choose would be "head," "injuries," and "skiing."
Logical words, also called "operators," instruct the system to retrieve records containing the literal words according to the
logic assigned.
AND=retrieves records containing BOTH words. For instance, the search statement, "head and injury and skiing,"
retrieves records that contain all three words. AND is restrictive.
OR=retrieves records containing EITHER word. For instance, the search statement, "injury or injuries," retrieves records
containing either "injury" or "injuries." The records do not have to contain both words. OR is expansive.
If you leave an operator out of the statement, most systems search for the words as a phrase. For instance, if you key in
"head injury," most systems retrieve records that contain both words "head" and "injury," and the two words appear beside
each other.
Sample Search Statements
- head and injury and skiing
- head and (injury or injuries) and skiing
- head injury and skiing
Suggested databases to search for articles: