CHAR_LENGTH
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Syntax
CHAR_LENGTH(str)
Description
Returns the length of the string str, measured in characters. A
multi-byte character counts as a single character. This means that for
a string containing five two-byte characters, LENGTH() returns 10,
whereas CHAR_LENGTH() returns 5. If the argument is NULL, returns NULL. If str is not a string value, it is converted into string.
Examples
SELECT CHAR_LENGTH('MariaDB');
+------------------------+
| CHAR_LENGTH('MariaDB') |
+------------------------+
| 7 |
+------------------------+
SELECT CHAR_LENGTH('π');
+-------------------+
| CHAR_LENGTH('π') |
+-------------------+
| 1 |
+-------------------+
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