Combining Search Terms with Boolean Operators
Use Boolean operators between two search terms to broaden or narrow a search. Boolean operators are:
AND | terms must be in the same record (narrows search) Example: Alcohol AND Abuse$ (the $ sign is the truncation symbol) |
OR | either one or both terms must be in the same record (broadens search) Examples:
|
NOT | the first term must be in the record, and the second term must not be in the record (narrows search) Example: Alcohol NOT Drug |
XOR | one or the other term must be in the record, but both terms cannot be in the same record (narrows search) Example: Narcotics XOR Alcohol |
Notes:
- If Boolean operators or stop words are part of a search string, put them in double quotes. For example, to search the term not-for-profit, type "NOT FOR" PROFIT.
- Boolean operators do not work in Browse search options, which match words with indexes character by character.
Combining Search Words With Positional Operators
If two or more terms are typed in a text input box without using a Boolean operator between them, the system understands the positional operator SAME (the terms must be in the same field) and requires all the terms to appear in the same field.
Use positional operators between two words to retrieve records in which the two are in a particular physical relationship to each other. Positional operators are:
SAME | terms must be in the same field Example: Revolution SAME Claims |
WITH | terms must be in the same sentence in a field Example: Investigation WITH Informants |
NEAR | terms must be adjacent to one another, in any order Example: Delinquent$ NEAR Juvenile$ |
ADJ | terms must be adjacent to one another and in the order in which they were entered |
Note: If stop words or operator words are part of a search string, put them in double quotes. For example, to search for the phrase NEAR EAST, type "NEAR" ADJ EAST.
Grouping Search Terms with Parentheses
Use parentheses to refine a search by grouping words with two or more operators, for example:
- Pollution AND (Water OR Air)
- Education AND (Child OR Children OR Elementary OR Preschool OR Kindergarten)
- (Spatial OR Geospatial) AND (Data OR Metadata)
- Marine ADJ (Biology OR Ecology) AND (Arctic OR Antarctic OR Polar)
Search Limits
When doing a Power Search, search limits are at the bottom of the screen. When doing a Quick Search, the search can only be limited after results are retrieved. On a screen of brief records, scroll to the bottom of the screen to view the limits. Type in or select the limits, scroll up, and resubmit the search.
Limit a search by publication year, format, language, location, etc.
- Format: Selecting the format SERIAL will limit a retrieval set to records for serials. (Caution: not all records have format information.)
- Type: Ask staff for assistance if needed.
- Language: Not all records can be searched by language.
- Library
- Location: Qualifying a search by location may be useful in certain instances. For example, to search for only New York State documents, limit the search by selecting:
LOCATION ==>D-NYS-DOC
Note: For New York State Archives records, it is best to select ALL as the location, as materials could be in multiple locations. - Match on: The options are KEYWORDS, LEFT TO RIGHT or EXACT CONTENT. May be useful in Power Search.
- Pubyear:
Limiter | Example |
> (greater than) | > 1990 |
< (less than) | < 1950 |
a range of years | 1990-1994 |
exact year | 1999 |
- Sort by: Determines the display order of search results. Results are not sorted if more than 100 records are retrieved.
Searching by OCLC number, ISSN, ISBN, or Archival series number
From the WORDS OR PHRASE option in the quick search
To search by OCLC number, enter the OCLC number. For older OCLC numbers with fewer than eight digits, you may need to type the 3-character prefix "OCM" in upper case followed by one or more zeros to bring the OCL number up to eight digits, e.g., if the OCLC were "123456", which has only six digits, enter "OCM00123456".
To search by ISSN, type the number exactly. For example:
- 0366-5313
To search by ISBN, type the number without hyphens. For example:
- 0913582271
To search by Archives series number, type the number and then be sure to select New York State Archives for the LIBRARY. For example:
- 12590
To search by MARC tags, use the { } brackets. For example:
- hudson{651}
- harcourt, brace {260}