CREATE OR REPLACE FUNCTION USERINFO.md5hash (str IN VARCHAR2)
RETURN VARCHAR2
IS v_checksum VARCHAR2(32);
BEGIN
v_checksum := LOWER( RAWTOHEX( UTL_RAW.CAST_TO_RAW( sys.dbms_obfuscation_toolkit.md5(input_string => str) ) ) );
RETURN v_checksum;
EXCEPTION
WHEN NO_DATA_FOUND THEN
NULL;
WHEN OTHERS THEN
-- Consider logging the error and then re-raise
RAISE;
END md5hash;
/
參考:
http://stackoverflow.com/questions/22533037/how-to-call-oracle-md5-hash-function
https://docs.oracle.com/cd/E17952_01/refman-5.1-en/encryption-functions.html
http://blog.csdn.net/junmail/article/details/4358516