SOUNDEX
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Syntax
SOUNDEX(str)
Description
Returns a soundex string from str
. Two strings that sound almost the
same should have identical soundex strings. A standard soundex string is four
characters long, but the SOUNDEX()
function returns an arbitrarily long
string. You can use SUBSTRING()
on the result to get a standard soundex
string. All non-alphabetic characters in str
are ignored. All
international alphabetic characters outside the A-Z range are treated as
vowels.
Important: When using SOUNDEX(), you should be aware of the following limitations:
- This function, as currently implemented, is intended to work well with strings that are in the English language only. Strings in other languages may not produce reliable results.
Examples
SOUNDEX('Hello'); +------------------+ | SOUNDEX('Hello') | +------------------+ | H400 | +------------------+
SELECT SOUNDEX('MariaDB'); +--------------------+ | SOUNDEX('MariaDB') | +--------------------+ | M631 | +--------------------+
SELECT SOUNDEX('Knowledgebase'); +--------------------------+ | SOUNDEX('Knowledgebase') | +--------------------------+ | K543212 | +--------------------------+
SELECT givenname, surname FROM users WHERE SOUNDEX(givenname) = SOUNDEX("robert"); +-----------+---------+ | givenname | surname | +-----------+---------+ | Roberto | Castro | +-----------+---------+
See Also
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