MySQL
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Method ASCIIMethod BINMethod BIT_LENGTHMethod CHARMethod CHAR_LENGTHMethod CHARACTER_LENGTHMethod CONCATMethod CONCAT_WSMethod ELTMethod EXPORT_SETMethod FIELDMethod FIND_IN_SETMethod FORMATMethod FROM_BASE64Method HEXMethod INSERTMethod INSTRMethod LCASEMethod LEFTMethod LENGTHMethod LOAD_FILEMethod LOCATEMethod LOWERMethod LPADMethod LTRIMMethod MAKE_SETMethod MIDMethod OCTMethod OCTET_LENGTHMethod ORDMethod POSITIONMethod QUOTEMethod REPEATMethod REPLACEMethod REVERSEMethod RIGHTMethod RPADMethod RTRIMMethod SOUNDEXMethod SPACEMethod STRCMPMethod SUBSTRMethod SUBSTRINGMethod SUBSTRING_INDEXMethod TO_BASE64Method TRIMMethod UCASEMethod UNHEXMethod UPPERMethod WEIGHT_STRING
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MySQL | CHAR_LENGTH method
schedule Aug 10, 2023
Last updated local_offer
Tags MySQL
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MySQL's CHAR_LENGTH(~) method returns the length of the input string measured in characters. It is synonymous with method CHARACTER_LENGTH.
Parameters
1. str | string
The string to return length for.
Return value
The length of the input string in characters.
Examples
Consider the following table about some students:
student_id | fname | lname | day_enrolled | age | username |
|---|---|---|---|---|---|
1 | Sky | Towner | 2015-12-03 | 17 | stowner1 |
2 | Ben | Davis | 2016-04-20 | 19 | bdavis2 |
3 | Travis | Apple | 2018-08-14 | 18 | tapple3 |
4 | Arthur | David | 2016-04-01 | 16 | adavid4 |
5 | Benjamin | Town | 2014-01-01 | 17 | btown5 |
The above sample table can be created using the code here.
Basic usage
To return the length of first names:
SELECT fname, CHAR_LENGTH(fname)FROM students;
+----------+--------------------+| fname | CHAR_LENGTH(fname) |+----------+--------------------+| Sky | 3 || Ben | 3 || Travis | 6 || Arthur | 6 || Benjamin | 8 |+----------+--------------------+5 rows in set (0.00 sec)
To return length of 'HELLO':
SELECT CHAR_LENGTH('HELLO');
+----------------------+| CHAR_LENGTH('HELLO') |+----------------------+| 5 |+----------------------+1 row in set (0.00 sec)
Published by Arthur Yanagisawa
Edited by 0 others
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Official MySQL Documentation
https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_char-length
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