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Posted By: Sarita Patel     Category: SQL Server     Views: 5733

This article explains DIFFERENCE function of sql server with examples.

DIFFERENCE is used to compare 2 character strings and returns difference between the soundex values of specified strings.
Soundex is nothing but same number of characters in the SOUNDEX values. DIFFERENCE can return from 0 to 4. 0 means little or no similarity and 4 means strong similarity or identical values.

Syntax of DIFFERENCE Function :

DIFFERENCE (character_expression1 ,character_expression2)

character_expression1 is a string of type char or varchar. 

character_expression2 is a string of type char or varchar. 

It returns an integer value.

Examples of DIFFERENCE Function :

Example 1 : Use of DIFFERENCE function in select clause

SELECT DIFFERENCE('Syntax','Syntax-Example')


Above example compares soundex value of 2 strings 'Syntax' and 'Syntax-Example' and returns difference of it.


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Sarita Patel
Sarita Patel author of DIFFERENCE Function is from United States.
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