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Re: Full Ex/Im-port to New Instance, NT

From: Yassir Khogaly <yassir_at_khogaly.freeserve.co.uk>
Date: Fri, 9 Oct 1998 20:22:52 +0100
Message-ID: <6vlo5h$54k$1@newsreader2.core.theplanet.net>


Hi,

Obviously none of you had any database with OS auth Users having locally stored objects,,,
mjain_at_my-dejanews.com wrote in message <6vlb31$kbt$1_at_nnrp1.dejanews.com>...
>
>
>Yassir,
>
> Have you tried what I said in my mail. Try it now.
>Then let us see what problems you encounter.
>
> Jurji also tried to explain you about it in his posting
>again second time. You can also change the DB_BLOCK_SIZE to
>a different value than original when you create new database
>
>I suggest you try a full export and then do a full import as
>I and Jurji tried to explain, and if you find any problems then
>let us look into it, and see what is missing, or what is done
>wrong.
>
> This is only logical way to convince you, I am sure you will be
>convinced if you try it yourself.
>
>good luck,
>
>Manoj Jain
>Oracle Certified Profrssional - OCP DBA
>Chauncey Certified Oracle7 DBA
>
>In article <6vkj9i$dl7$1_at_newsreader1.core.theplanet.net>,
> "Yassir Khogaly" <yassir_at_khogaly.freeserve.co.uk> wrote:
>> I will tell you an existing Open TAR with ORACLE UK
>> Its a Bug On NT4.0 and Corrupt Rollback Segment Header when the
following
>> scenario occurs :
>> 1-If you enable the UNLIMITED MAX EXTENTS while DB_BLOCK_SIZE=2K(DEFAULT)
>> 2-ENABLE THE DYNAMIC SPACE MANAGEMENT ON DATAFILES LEVEL.
>> 3-CREATE ANY PRIVATE ROLLBACK SEGMENTS "2 will be perfect".
>> 4-Start some Procedure, Program, Application ...that accesses the
Database
>> and requires to acquire the private rollback segments"AS OWNER".
>> 5-Now Crash your database by Switching OFF POWER.
>> 6-Restart the Machine & NT. Your Database will Start.
>> 7- Check your alert file you will find that Smon tries to Recover some
>> Transactions..Then Ora600.. .
>> 8-Your Private Rollback Segments Will become "Needs Recovery", But Will
>> never ever recover Again".
>>
>> 9-ORACLE Corporation Support PROVIDES TWO SOLUTIONS, The First is Using
>> "_corrupt_rollback_segments" which is Not Recommended because it leaves
>> Corruption in the Dictionary and the Control File(s). The RECOMMENDED
>> Solution IS TO RECREATE YOUR DATABASE....!
>>
>> 10-DO FULL EXPORT,RE-CREATE THE DATABASE & THE TABLESPACES WITH EXACT
NAMES
>> OF DATAFILES and LOCATIONS.
>> 11-RE-CREATE YOUR PRIVATE ROLLBACK SEGMENTS WITH THE EXACT NAMES, to do
that
>> you need to Recreate your Application User then Create the Private
Rollback
>> Segments.
>> 12-IMPORT FULL WITH "IGNORE=y".
>>
>> 13-After the Import is Done connect to your database and Drop the Private
>> Rollback Segments if you want ..But only at this stage your database will
be
>> corruption Free...
>>
>> Regards
>>
>> about
>> Yassir Khogaly wrote in message
>> <6vkai7$bkl$1_at_newsreader2.core.theplanet.net>...
>> >Hi,
>> >
>> >Yes.. I Said that and it is correct.
>> >Read the original emai you will find that the question was about Full
>> import
>> >into an new Instance...! Talking about new instances..., Please try out
>> this
>> >yourself :
>> >
>> >1)-FULLY EXPORT YOUR CURRENT DATABASE.
>> >2)-DROP YOUR DATABASE COMPLETELY & REMOVE THE DATAFILES physically and
also
>> >remove Oracleservice & OracleStart services
>> >3)-RECREATE YOUR DATABASE WITH ALL EXACT PARAMETERS, Tablespaces,
Datafiles
>> >Names & locations, BUT CHANGED DB_BLOCK_SIZE TO 8K from 2K which is the
>> >default for NT4.0.
>> >4)-TRY TO IMPORT YOUR PREVIOUS EXPORT now...?.
>> >
>> >Please Let me know if you still NOT happy...!
>> >
>> >
>> >Good Luck
>> >
>> >
>> >
>> >
>> >
>>
>>
>
>-----------== Posted via Deja News, The Discussion Network ==----------
>http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
Received on Fri Oct 09 1998 - 14:22:52 CDT

Original text of this message

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