DIFFERENCE() is a wrapper around two SOUNDEX(). : DIFFERENCE « String Functions « SQL Server / T-SQL Tutorial

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SQL Server / T-SQL Tutorial » String Functions » DIFFERENCE

12. 4. 3. DIFFERENCE() is a wrapper around two SOUNDEX().


It simplifies the comparison, reducing the result to a scale from 0 to 4, where the value 4 indicates a very close or exact match.



4>

5> SELECT DIFFERENCE('To', 'Two')

6> GO



-----------

          4



(1 rows affected)

12. 4. DIFFERENCE
	12. 4. 1.	DIFFERENCE function returns a value between 0 and 4 that reflects how close a match there is between the two strings.
	12. 4. 2.	Using String Functions to Search for Phonetically Similar Data
	12. 4. 3.	DIFFERENCE() is a wrapper around two SOUNDEX().
	12. 4. 4.	SELECT DIFFERENCE ('Redmond', 'Renton')
	12. 4. 5.	Use SOUNDEX(au_lname) and DIFFERENCE
	12. 4. 6.	DIFFERENCE('Nite', 'Knight')
	12. 4. 7.	Use DIFFERENCE in where clause

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