Sun Microsystems Netscape Enterprise Server, Руководство администратора

Страница: 426 / 532

Using the Query Operators
426 Netscape Enterprise Server Administrator’s Guide
Search Rules
To create complex searches, you can combine query operators, manipulate the
query syntax, and include wildcard characters.
Angle Brackets
With the exception of the
AND
,
OR
,
NOT
, and the date and numeric comparison
operators, you need to enclose query operators in angle brackets, as in
<CONTAINS
and
<WILDCARD
.
Combining Operators
You can combine several query operators into a single query to obtain precise
results. For example, you can input the following query to limit your search to
those documents that have
Bay and Monterey but excludes those that also
mention Aquarium:
Monterey AND Bay NOT <CONTAINS Aquarium
You can achieve even greater precision by including some implicit phrases, as
in the following query that finds documents that refer to the
Monterey Bay
Aquarium by its full name and also mention otters but do not refer to shark:
Monterey Bay Aquarium AND otter AND NOT shark
Using Query Operators as Search Words
You can use any of the query operators as a search word, but you must enclose
the word in quotation marks. For example, you could search for documents
about the
ebb and flow
of the tides with the following query:
<CONTAINS ebb "and" flow
Canceling Stemming
You can cancel the implicit stemming by using quotation marks around a word.
For example, you can be exact by using a query such as this:
"plan"