Oracle中的MD5加密详解

declare
v2 varchar2(32); begin
v2 := Utl_Raw.Cast_To_Raw(sys.dbms_obfuscation_toolkit.md5(input_string => '111'));
dbms_output.put_line(v2); end;

CREATE OR REPLACE FUNCTION MD5(
passwd IN VARCHAR2) RETURN VARCHAR2 IS
retval varchar2(32); BEGIN
retval := utl_raw.cast_to_raw(DBMS_OBFUSCATION_TOOLKIT.MD5(INPUT_STRING => passwd)); RETURN retval; END;

select md5(1) from dual

--Oracle中MD5函数语句
create or replace FUNCTION "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;