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Clauses (Spider)

JoeWinter edited this page Sep 19, 2014 · 3 revisions

[Table of Contents](https://github.com/dell-oss/Doradus/wiki/Spider Databases: Table-of-Contents) | [Previous](https://github.com/dell-oss/Doradus/wiki/Query Perspective (Spider)) | [Next](https://github.com/dell-oss/Doradus/wiki/Clause Negation NOT (Spider))
Doradus Query Language: Clauses


A DQL query is comprised of one or more Boolean expressions called clauses. Each clause examines a field that is related to perspective objects. The clause evaluates to true for a given object if the examined field matches the clause’s condition. Example clauses are shown below:

Name:Smith
FirstName=John
SendDate:[2001 TO "2005-06-31"]
NOT Name:Jo*
ALL(InternalRecipients).ANY(MessageAddress).Domain.Name = "dell.com"
Manager^(3).LastName:Wright

These examples show a variety of comparison types: qualified and unqualified fields, contains and equals, ranges, pattern matching, quantifiers, and transitive searches.

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