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WebDewey search indexes

Find the search indexes available in WebDewey and learn how to combine terms in one or more indexes.

WebDewey search indexes

Index (label) Included fields Example Tips/Why use?
Dewey Numbers
All Dewey entry numbers in the schedules, tables, manual, and Relative Index 610.73 Find all occurrences of a specific DDC class number.

Use truncation to match all class numbers that begin with the same sequence of digits.
Relative Index
Words in the Relative Index, including See Also and See Manual entries health Find records that encompass a subject in the context of various disciplines.
Words in the captions bibliographies Find a record for a DDC number when you know the caption or part of the caption.

Determine whether a term is part of a DDC caption.
Words and Dewey numbers in the notes fields of the schedules, tables, and manual geologic Find special instructions regarding a subject or a class number.
All Dewey
All data included in these indexes: Dewey Numbers, Captions, Relative Index, and Notes deity Omit the mapped LCSH from the search.
Words in all Library of Congress subject headings (LCSH) that have been mapped to DDC class numbers, either editorially or statistically flyball Determine whether an LCSH term has been associated with a DDC class number, either by the DDC editors or by a statistical process.
Words in all National Library of Medicine subject headings (MESH) that have been mapped to DDC class numbers. cancer Determine whether a MeSH term has been associated with a DDC class number.
Number Components Dewey numbers and components (schedules or tables) T1--071 Find all built numbers that use the specified component
Author Authorization number 100401234 Find all built numbers contributed by the specified authorization
Comments Words in user comments in the schedules, table, and manual local Find all records with comments using the specified word(s)
All Fields
All fields/data included in all indexes of the WebDewey database cookies Improve results when a search on another index produces too few hits.

Find all occurrences of a term in the database.

Combine terms in one index

To specify Enter Example
Multiple terms, all terms required (AND) [term1] [term2]


[term1] and [term2]

A space between terms is treated as an and.
transportation safety
Multiple terms, at least one term required (OR) [term1] or [term2] radiography or radiology
One or more terms that must not be found (NOT) [term1] [term2] not [term3]


[term1] or [term2] not [term3]
college education not secondary
One or more groups of terms combined with other terms (parentheses) [term1] ([term2] or [term3])

[term1] or ([term2] or [term3])

[term1] or ([term2] [term3])
education (college or university)

graduate or (college or university)

graduate or (college university)

Combine terms in multiple indexes

Operator Retrieves Example

Records that contain both of the combined terms in the field(s) specified for each term. food [All Fields] and 613* [Dewey Numbers]
OR Records that contain at least 1 of the combined terms in the field(s) specified for that term; records can contain either term or both terms. food [All Fields] or 613* [Dewey Numbers]
NOT Records that do not contain the term that follows NOT in the field(s) specified. food [All Fields] or 613* [Dewey Numbers] not supply [All Fields]


The following common words are omitted from all WebDewey indexes. The system ignores these words if you include them in a query.

a an and as at
be by for from in
is of on that the
to with