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dtSearch Text Retrieval Engine Programmer's Reference
Search Features
Search Requests | Topics

Search features such as fuzzy searching, stemming, phonic searching, regular expressions, etc.

Remarks

Search terms may include the following special characters:

Character 
Meaning 
matches any character 
matches any number of characters 
phonic search 
~~ 
## 

All of these special characters, except for ? and *, can be modified using the Options object. You can also enable search features an entire search request through search flags in the search job.

Group
Topics
Topic 
Description 
A numeric range search is a search for any numbers that fall within a range. 
A ? in a word matches any single character (including a Unicode character), and a * matches any number of characters. 
Synonym searching finds synonyms of a word in a search request. 
Fuzzy searching will find a word even if it is misspelled. 
Stemming extends a search to cover grammatical variations on a word. 
Regular expression searching provides a way to search for advanced combinations of characters. 
Variable term weighting allows the weight of each search to be specified in the search request. 
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