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MySQL | SOUNDEX method

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schedule Jul 1, 2022
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MySQL's SOUNDEX(~) method returns a soundex string from the input string.

NOTE

A soundex string is usually a four character code to represent how a string sounds when spoken, however, SOUNDEX(~) method returns an arbitrarily long soundex string.

Parameters

1. str | string

The string to return soundex string for.

Return value

The soundex string for the input.

Examples

Basic usage

To return soundex string for 'see' and 'sea':

SELECT SOUNDEX('sea'), SOUNDEX('see');
+----------------+----------------+
| SOUNDEX('sea') | SOUNDEX('see') |
+----------------+----------------+
| S000 | S000 |
+----------------+----------------+

Both strings have the same soundex string, indicating they sound the same when spoken.

To return soundex string for 'listening' and 'listener':

SELECT SOUNDEX('listening'), SOUNDEX('listener');
+----------------------+---------------------+
| SOUNDEX('listening') | SOUNDEX('listener') |
+----------------------+---------------------+
| L2352 | L2356 |
+----------------------+---------------------+

Note that the end of the soundex string is different for the two input strings.

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Published by Arthur Yanagisawa
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