SUMMARY: same file with different sum and cksum output

From: Cohen, Andy (Andy.Cohen@cognex.com)
Date: Wed Jun 26 2002 - 11:02:53 EDT

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Hi,

My basic question - if I issue a sum (or a cksum) on a file that I copied
from one machine to another and the output is different between the 2
machines does it necessarily indicate the file is different. The basic
answer is yes:

        The first number is the calculated checksums. When the
        numbers differ for a given command, the files are most
        certainly different. In your case, "different" probably
        also means corrupt. You need to step through the entire
        cycle; check sum the source files, check sum the compressed
        files before copying, after copying and after uncompression.

Thanks to Alan Nabeth for this information.

As an aside: thanks to to all the people who gave me Oracle advice. I have
successfully cloned a database from a hot backup a number of times (both 7
and 8).

I think I found out what the problem is. If I issue:

        recover database using backup controlfile;

I get the error 'ORA-01113: file 1 needs media recovery' when I issue 'ALTER
DATABASE OPEN resetlogs'.

However, if I issue:

        recover database using backup controlfile until cancel;

It works fine when I issue 'ALTER DATABASE OPEN resetlogs'!

Thanks again everybody!
Andy

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