Usage Notes - Advanced SQL Engine - Teradata Database

SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Published
July 2021
Language
English (United States)
Last Update
2021-07-28
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SQL_Functions__Expressions__and_Predicates.Upload_071421/djk1612415574830.ditamap
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SQL_Functions__Expressions__and_Predicates.Upload_071421/wrg1590696035526.ditaval
dita:id
B035-1145
lifecycle
previous
Product Category
Teradata Vantageā„¢

EDITDISTANCE measures the similarity between two strings. A low number of deletions, insertions, substitutions or transpositions implies a high similarity. The insertions, deletions, substitutions, and transpositions are based on the Damerau-Levenshtein Distance algorithm with modifications for costed operations.

If either string1 or string2 is NULL, the function returns NULL.