Bobak, Mark wrote: > Here it is: [...] > This concludes this public service announcement. We now return > you to our regularly scheduled programming.
Interesting. PL/SQL recursive solutions are expensive, though. :) Did not check it, maybe something alike was posted already...
SET VERIFY OFF PAGES 200
DEFINE disks=7
REM Please do not use all_objects :)
DEFINE big_table=all_objects
COLUMN "Implementation Plan" FORMAT A20
SPOOL hanoi_solution.txt
SELECT 'Move it from '
|| TO_CHAR(MOD(BITAND(ROWNUM, ROWNUM - 1), 3) + 1)
|| ' to '
|| TO_CHAR(MOD(-BITAND(-ROWNUM - 1, -ROWNUM), 3) + 1) AS "Implementation Plan"
FROM &&big_table
WHERE ROWNUM < POWER(2, &&disks)
AND &&disks < 8
/
SPOOL OFFShould work correctly.
Regards, -- Vladimir Begun The statements and opinions expressed here are my own and do not necessarily represent those of Oracle Corporation.
-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Vladimir Begun INET: [EMAIL PROTECTED]
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