re Export/Import SYS -- was sRe: import from Oracle 9 to 10 hanging

LSC is right .

1. SYS is not to be used for Exports. Note#277237.1 explains why one should not connect as SYS when running an Export. Essentially, since SYS does not follow the transaction level read-consistency rules, an Export as SYS does not provide data consistency (even if CONSISTENT=Y is used). [The only reasons to use SYS would be when specifically requested by Oracle Support or for Transportable Tablespaces]
2. SYS is excluded when running a EXP with FULL=Y. I did a quick scan of catexp.sql and found the exclusions for ORDSYS, MDSYS, CTXSYS etc but couldn't find explicit code which shows how SYS is excluded. [Probably the exclusion is not in catexp.sql but in the oracle (exp) binary ?]

At 04:48 PM Friday, LS Cheng wrote:
>export full does not export sys (and several), may be that sounds better ;-)
>
>Thanks
>
>--
>LSC
>
>
>On 6/29/07, Stefan Knecht <<mailto:knecht.stefan_at_gmail.com>
>knecht.stefan_at_gmail.com> wrote:
>Of course you can export sys:
>

Hemant K Chitale
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