Function to get reversal of any string ..!

hi ,
Is there any function in oracle to get reversal of any string.
'london' --> 'nodnol'
select func_name('london') from dual; --> is there any built-in function to do this operation?
result- 'nodnol'
rgds,
pc

SQL> with t as (
select 'nodnol' str from dual
select str,
       reverse (str) rev1,
       utl_raw.cast_to_varchar2 (utl_raw.reverse (utl_raw.cast_to_raw (str))) rev2,
       xmlquery('codepoints-to-string(reverse(string-to-codepoints(.)))' passing xmlelement(e,str) returning content).getstringval() rev3
from t
STR    REV1   REV2       REV3
nodnol london london     london
1 row selected.Note:
REV1 is undocumented!
REV2 works just for single-byte characters

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"Roger W. Fischer" <[email protected]> wrote in message
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