MySQL OCTET_LENGTH() function
OCTET_LENGTH() function
MySQL OCTET_LENGTH() returns the length (in characters) of a string.
This function is useful in -
- Byte length calculation: It allows you to determine the length of a string in terms of the number of bytes it occupies.
- Data manipulation: Often, OCTET_LENGTH() is used to determine the length of strings for storage or transmission.
Syntax:
OCTET_LENGTH(str)
Argument:
Name | Description |
---|---|
str | A string whose length is to be returned. |
The above function is a synonym for LENGTH().
Syntax Diagram:

MySQL Version: 8.0
Example: MySQL OCTET_LENGTH() function
The following MySQL statement will return the length of the string w3resource. The return value is 10.
Code:
SELECT OCTET_LENGTH("w3resource");
Output:
mysql> SELECT OCTET_LENGTH("w3resource"); +----------------------------+ | OCTET_LENGTH("w3resource") | +----------------------------+ | 10 | +----------------------------+ 1 row in set (0.00 sec)
Video Presentation:
All String Functions (Slides presentation)
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