RAWTOHEX is one of the vital Conversion functions of Oracle. It is used to convert a raw value to a hexadecimal value. The RAWTOHEX function is supported in the various versions of the Oracle/PLSQL, including, Oracle 12c, Oracle 11g, Oracle 10g, Oracle 9i and Oracle 8i.
RAWTOHEX ( raw )
raw: It is used to specify the raw value to be converted.
'4142' OR 'AB'
The result will be ‘AB’ if run as a PLSQL function or the result will be ‘4142’ if run as a SQL function.