Using String Functions to Search for Phonetically Similar Data : DIFFERENCE « String Functions « SQL Server / T-SQL Tutorial

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

12. 4. 2. Using String Functions to Search for Phonetically Similar Data


Locating a customer name.

6>

7>

8> SELECT DIFFERENCE("Kathy Ward","kathy WARD"),

9>        DIFFERENCE("KATHY Ward","Cathy Ward"),

10>        DIFFERENCE("KATHY Ward","Cathie Ward")

11> GO



----------- ----------- -----------

          4           3           3



(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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