RAWTOHEX
RAWTOHEX converts raw data to a character value containing its hexadecimal representation.
Arguments
raw can be any scalar data type other than LONG, LONG RAW, CLOB, BLOB, or BFILE.
Example
RAWTOHEX(NLSSORT('Rumpelstiltskin')) converts the raw value returned by NLSSORT to the hexadecimal value 52756D70656C7374696C74736B696E00.