length function
The 
               length function returns the length of a character string. The
                        length function calculates the length using the UTF character
                        set.returnvalue length(source)
source ::= any*
returnvalue ::= integerExample: Find the length of the full name of the passenger whose
                        ticket number is
                        1762350390409.
               SELECT fullname, length(fullname) AS fullname_length 
FROM BaggageInfo
WHERE ticketNo=1762350390409Output:
                        
            {"fullname":"Fallon Clements","fullname_length":15}