MySQL CHARACTER_LENGTH() function

CHARACTER_LENGTH()

MySQL CHARACTER_LENGTH() returns the length of a given string. The length is measured in characters. The CHARACTER_LENGTH() is the synonym of CHAR_LENGTH().

Syntax:

 
CHARACTER_LENGTH (str)

Argument:

Syntax Diagram:

MySQL Version: 8.0

Example : MySQL CHARACTER_LENGTH() function

The following MySQL statement counts the length of the string specified as an argument.

Code:

SELECT CHARACTER_LENGTH('test string');

Output:

mysql> SELECT CHARACTER_LENGTH('test string');
+---------------------------------+
| CHARACTER_LENGTH('test string') |
+---------------------------------+
|                              11 | 
+---------------------------------+
1 row in set (0.00 sec)

Example of MySQL character_length() function where clause

The following MySQL statement counts only those of the publisher's names (from column pub_name of the publisher table) which are more than 20 characters long.

Code:

SELECT pub_name,CHARACTER_LENGTH(pub_name)
AS 'character length'
FROM publisher
WHERE CHARACTER_LENGTH(pub_name)>20;

Sample table: publisher

Output:

mysql> SELECT pub_name,CHARACTER_LENGTH(pub_name)
    -> AS 'character length'
    -> FROM publisher
    -> WHERE CHARACTER_LENGTH(pub_name)>20;
+------------------------------+------------------+
| pub_name                     | character length |
+------------------------------+------------------+
| New Harrold Publication      |               23 | 
| Summer Night Publication     |               24 | 
| Pieterson Grp. of Publishers |               28 | 
+------------------------------+------------------+
3 rows in set (0.00 sec)

Video Presentation:

All String Functions (Slides presentation)

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