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LENGTH
The function 
LENGTH
Returns the length (in bytes) 
SELECT 
    id, 
    first_name,
    LENGTH(first_name) first_name_length 
FROM students
Note: Each Georgian letter takes 
three bytes
by Valeri Tandilashvili
4 years ago
MySQL
String functions
Full MySQL Course for Beginners
1
Pro tip: use ```triple backticks around text``` to write in code fences