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DEVELOPING COLDFUSION 9 APPLICATIONS
Accessing and Using Data
The operators AND and OR, and the modifier NOT, do not require angle brackets (<>). Operators typically require
angle brackets and are used in explicit queries. For more information about operators and modifiers, see
and
modifiers" on page 515.
Stemming in simple queries
By default, Verity interprets words in a simple query as if you entered the STEM operator (and MANY modifier). The
STEM operator searches for words that derive from a common stem. For example, a search for instructional returns
files that contain instruct, instructs, instructions, and so on.
The STEM operator works on words, not word fragments. A search for "instrument" returns documents containing
"instrument," "instruments," "instrumental," and "instrumentation," whereas a search for "instru" does not. (A
wildcard search for instru* returns documents with these words, and also those with instruct, instructional, and so on.)
Note: The MANY modifier presents the files returned in the search as a list based on a relevancy score. A file with more
occurrences of the search word has a higher score than a file with fewer occurrences. As a result, the search engine ranks
files according to word density as it searches for the word that you specify, as well as words that have the same stem. For
more information on the MANY modifier, see "Modifiers" on page 521.
In CFML, enter your search terms, operators, and modifiers in the
<cfsearch name="search_name"
collection="bbb"
type="simple"
criteria="instructional">
Preventing stemming
When entering text on a search form, you can prevent Verity from implicitly adding the STEM operator by doing one
of the following:
• Perform an explicit query.
• Use the WORD operator. For more information, see "Operators" on page 515.
• Enclose the search term that has double-quotation marks with single-quotation marks, as follows:
<cfsearch name="search_name"
collection="bbb"
type="simple"
criteria='"instructional"'
Using explicit queries
In an explicit query, the Verity search engine literally interprets your search terms. The following are two ways to
perform an explicit query:
• On a search form, use quotation marks around your search terms.
• In CFML, use
type="explicit"
When you place a search term in quotation marks, Verity does not use the STEM operator. For example, a search for
"instructional" —enclosed in quotation marks, as shown in
that contain instruct, instructs, instructions, and so on (unless the files also contain instructional).
Note: The Verity products and documentation refers to the Explicit parser as the BooleanPlus parser.
in the
tag.
cfsearch
"Preventing
Last updated 8/5/2010
attribute of the
criteria
cfsearch
stemming" on page 507— does not return files
507
"Operators
tag:
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