MySQL SOUNDEX is one of the String Function, which is to return the Soundex code of a given string. Generally, it returns the four digits standard code as an output. However, this is not the case for the long string arguments.
As the name suggests, the SOUNDEX in MySQL returns the code based on the string sound. I mean, if two strings sound identical, then the value will be identical too.
MySQL SOUNDEX Syntax
The basic syntax of the SOUNDEX Function in MySQL is as shown below:
SELECT SOUNDEX(String_Expression) FROM [Source]
MySQL SOUNDEX Function Example
It returns the Soundex code value of a user-specified string expression. The following query shows you multiple ways to use this function.