Newbie sorry data-load question and datafile / viral measure

Hi guys

Sorry disturbing you - but I did a lot of reading and am still confused.

I was asked to create a new tablespace:

create tablespace xyz datafile 'oradata/corpdata/xyz.dbf' size 2048M extent management local size unique 1023M;

alter tablespace xyz add datafile ' / oradata/corpdata/xyz.dbf' size 2048M;

Despite being worried not given information about the data to load or why the tablespace must be sized that way - I was told to just 'do it '.

Someone tried to load data - and there was a message in the alerts log.

ORA-1652: unable to extend temp by 65472 segment in tablespace xyz

We do not use autoextend on data files even if the person loading the data would be so (they are new on the environment).

The database is on a cold backup nightly routine - we are in a rock anvil - we have no space on the server - to make RMAN and only 10 G left on the Strip for (Veritas) backup routine and thus control space with no autoextend management.

As far as I know of the above error message is that the storage space is not large enough to hold the load data - but I was told by the person who imports the data they have it correctly dimensioned and it something I did when the database create order (although I have cut and pasted from their instructions - and I adapted to our environment - Windows 2003 SP2 but 32 bits).

The person called to say I had messed up their data loading and was about to make me their manager for failing to do my job - and they did and my line manager said that I failed to correctly create the tablespace.

When this person was asked to create the tablespace I asked why they thought that extensions should be 1023M and said it was a large data load that must be inserted to a certain extent.

That sounds good... but I'm confused.

1023M is very much - this means that you have only four extents in the tablespace until it reaches capacity.

It is a load - is GIS data - I have not participated in the previous data loads GIS - other than monitor and change of tablespaces to support - and previous people have size it right - and I've never had no return. Guess I'm a bit lazy - just did as they asked.

However, they never used 128K as a size measure never 1023M.

Can I ask is 1023 M normal for large data loads - or I'm just the question - it seems excessive unless you really just a table and an index of 1023M?

Thanks for any idea or other research.

Assuming a block size of 8 KB, 65472 would be 511 MB. However, as it is a GIS database, my guess is that the database block size itself has been set to 16K, then 65472 is 1023MB.

What load data is done? Oracle Export dump? Which includes a CREATE INDEX statement?
Export-Import is a CREATE TABLE and INSERT so that you would get an ORA-1652 on it. So you get ORA-1652 if the array is created.
However, you will get an ORA-1652 on an INDEX to CREATE the target segment (ie the Index) for this operation is initially created as a 'temporary' segment until the Index build is complete when it switches to be a 'temporary' to be a segment of "index".

Also, if parallelism is used, each parallel operation would attempt to assign degrees of 1023 MB. Therefore, even if the final index target should have been only, say 512 MB, a CREATE INDEX with a DEGREE of 4 would begin with 4 extensions of 1023 MB each and would not decrease to less than that!

A measure of 1023 MB size is, in my opinion, very bad. My guess is that they came up with an estimate of the size of the table and thought that the table should be inserted in 1 measure and, therefore, specified 1023 MB in the script that is provided to you. And it is wrong.

Same Oracle AUTOALLOCATE goes only up to 64 MB extended when a Segment reached the mark of 1 GB.

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    Edited by: user8363520 on Feb 29, 2012 12:24 PM                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

    user8363520 wrote:
    so can get us this or can't do?

    You seem to have:
    (a) old version of data through rman backup files
    (b) old version of the control file
    (c) Backed archived redo logs
    (d) recovery archived logs that have been recently generated
    (e) current online redo logs

    Therefore, you should be able to bring back the database in the State wherever it was when you made the abandonment.
    I don't do enough laps to be able to cite details on the commands to use (and I often find myself using the command line recovery after that file of rman restore, but the steps you need must be)

    Take a copy of security of the data current, archived and online redo log files.
    Restore the backup control file, data files, and archived recovery logs
    Recover the database by using up to cancel backup control file
    You have to do 'create datafile' bit as the collection hits the 'missing file' bit
    You will need to provide the names of the archived and log files online redo recovery reached their
    (although, presumably, you could leave copies of the logs stored in the default location)

    Concerning
    Jonathan Lewis
    http://jonathanlewis.WordPress.com
    Author: core Oracle

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    + Received order [calculate] user [directory admin@Native] +.

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    + Received order [calculate] user [directory admin@Native] +.

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    Updated load cells [98] data

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    + [Sea 16 May 16:20:12 2012]Local/Monthly/Monthly/admin@Native Directory/140095930963712/Info (1013091) +]
    + Received order [calculate] user [directory admin@Native] +.

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    + Received order [calculate] user [directory admin@Native] +.

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    + Received order [calculate] user [directory admin@Native] +.

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    + Received order [calculate] user [directory admin@Native] +.

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    + Received order [calculate] user [directory admin@Native] +.

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    + Received order [calculate] user [directory admin@Native] +.

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