CHAR_LENGTH() Function in MySQL

CHAR_LENGTH() function in MySQL is used to find the length of a given string (in characters). It counts the number of characters and ignore whether the character(s) are single-byte or multi-byte. 

Syntax :

CHAR_LENGTH(str)

Parameter : This method accepts one parameter as mentioned above and described below :

• str : A string whose length to be calculated.

Returns : It returns the length of a given string. 

Example-1 : CHAR_LENGTH() function to find the length for a String.

SELECT CHAR_LENGTH("geeksforgeeks") AS LengthOfString

Output :

LengthOfString
13

Example-2 : CHAR_LENGTH() function to find the length for a String.

SELECT CHAR_LENGTH("SQL Tutorial in geeksforgeeks") AS LengthOfString

Output :

LengthOfString
29

Example-3 : CHAR_LENGTH() function to find the length for every String in a column of a Table. 

Table – Student_Details :

Student_Roll	Student_Name	Total_Marks
1	Amit	450
2	Aniket	470
3	Sanjana	432
4	Nirmal	475

SELECT CHAR_LENGTH(Student_Name) AS LengthOfName FROM Student_Details;

Output :

LengthOfName
4
6
7
6