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I think I inadvertently gave you a bum steer. I was thinking about
character collating rather than the underlying hex.
However, I may be able to redeem myself. I think the \xhh is actually ASCII
hex rather than EBCDIC hex.
Reason I say that is that if you look at a conversion table such as this one
<
https://www.ibm.com/docs/en/xl-fortran-aix/16.1.0?topic=appendix-ascii-ebcdic-character-sets>
you'll see that, for instance, capital A to G is ASCII hex 41 to 47, and if
you try this in SQL:
with foo(bar) as (
values('ABCDEFG'))
SELECT foo.bar,
regexp_instr(foo.bar,'[\x43-\x44]')
FROM foo
You get position 3, being ASCII hex'43' C, whereas EBCDIC hex'43' is: ä
(lower-case a with umlaut, in case it doesn't show properly in the browser).
If it's any help I have an unprintable character finder UDF I'm happy to
post (gives the hex value, the display value and the position in the
string).
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