Bitwise exclusive OR in Oracle

问题

In SQL Server I have been using the ^ symbol, however that doesn't seem to work in Oracle.

How do I do a bitwise exclusive OR in Oracle?

回答1:

From the docs:

function bitor(p1 number, p2 number) return number is
begin
  return p1-bitand(p1,p2)+p2;
end;

function bitxor(p1 number, p2 number) return number is
begin
  return bitor(p1,p2)-bitand(p1,p2);
end;

To see that these work, follow the logic with just 0s and 1s for input, and then not that there are no borrow or caries.

-- MarkusQ

回答2:

There is the BITAND operator:

select bitand(49,54)+0 from dual;

You can build up the other operators from it; and here.

回答3:

There's no easy way.

You may cast string HEX values into RAW values and use UTL_RAW:

SELECT UTL_RAW.bit_xor(HEXTORAW(TO_CHAR(1, 'FMX')), HEXTORAW(TO_CHAR(2, 'FMX')))
FROM dual

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 03

来源：https://stackoverflow.com/questions/604598/bitwise-exclusive-or-in-oracle