Generate Upper and Lowercase Alphanumeric Random String in Oracle

Question

How does one generate an upper and lowercase alphanumeric random string from oracle?

I have used select DBMS_RANDOM.STRING(\'x\', 10) from dual to generate

Answer 1

How about this:

select translate(dbms_random.string('a', 20), 'abcXYZ', '158249') from dual;

or, even MORE random ;)

select translate(dbms_random.string('a', 20), dbms_random.string('a',6), trunc(dbms_random.value(100000,999999))) from dual;