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?|
|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.
|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 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/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
|Multiple terms, all terms required (AND)||[term1] [term2]
[term1] and [term2]
A space between terms is treated as an and.
|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
|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.