The LENGTH function returns the length of string.
Length syntax
LENGTH( string )
Length example
select length('') from dual; Result: (null) select length(NULL) from dual; Result: (null) select length(12345) from dual; Result: 5 select length('12345') from dual; Result: 5 select length('12,345.89') from dual; Result: 9 select length('Reference') from dual; Result: 9 select length('PL/SQL Reference') from dual; Result: 16