Fast EXPORT/IMPORT Question

I have a 200+ GB Oracle 9i DB on UNIX, many tables have primary keys/indexes/constraints. Assuming nobody accessing/using the DB, what is the best procedure to speed up export/import? Both of these will happen on the same machine/OS and RDBMS version. No RMAN please. Thanks.

include the following -
direct=y
recordlength=65535
export file on seperate disks to the datafiles.
import -
recordlength=65535
buffer=64M (or higher)
export file on a seperate disk to the datafiles
Not many people use recordlength, definately a quicker way to export/import.

Similar Messages

Fast Export/Import

Hi,
I need to export a table, which having approximately 30 million records.
Please let me know the faster way to Export & Import it.
Version : Oralce 10.2.0.4.0
OS : SunOS

Hi,
Hope it'll help:
EXPORT:
create directory expdp_dir as '...';
grant read, write on directory expdp_dir to system, <from_schema>;
expdp <from_schema>/<passw> DIRECTORY=expdp_dir DUMPFILE=<...>.dmp SCHEMAS=<from_schema>
expdp <from_schema>/<passw> DIRECTORY=expdp_dir DUMPFILE=<...>.dmp TABLES=TABLE1,TABLE2
IMPORT
create directory expdp_dir as '...';
grant read, write on directory expdp_dir to system, <to_schema>;
impdp <to_schema>/<passw> DIRECTORY=expdp_dir DUMPFILE=<...>.dmp SCHEMAS=<from_schema> REMAP_SCHEMA=<from_schema>:<to_schema>Good luck!
http://dba-star.blogspot.com

Multiple servers in parallel export/import question

Hello all,
We plan to use parallel export/import using distribution monitor, and want to use several servers in export and also in import.
The export_monitor.cmd.properties has FTP option ftphost, whic is the hostname of the import server, which looks like it will only use 1 application server (AS) from the source system and 1 in the AS in the target system -
- is this true or can we use more AS in both export and import?
- in the export, how to specify the AS to use?
- in the export, how to specify more than 1 AS?
- in the imprt, how to specify more than 1 AS ?
Thanks,
Terry

You can use the Distribution Monitor for that purpose. Check note 855772 - Distribution Monitor
Markus

Bundle export/import questions and work arounds

Hello,
I've begun to use bundles to migrate components from our test server to our production server. Bundles are a great feature which i missed the last time i worked with N1SPS a few years back. But i've found a few things that i had to work around.
1. It would be very nice to be able to set version to something like "latest" in the bundle, so i always get the latest version of all components when i do an export.
2. The bundle should be able to export in a certain order, first folder then components, then containers and lastly plans. Today i have to add everything to the bundle in this order or change the XML-file in the jar afterwards. A function to change the order in the bundle would also help.
3. Then the bundle is imported the container reefers to components of version 1.1 for some reason (in this case a directory), but it will import that component to version 1.0? I had to change the version reference in the XML to get this to work.
Any workaround or is it all RFE:s and bugfixes?
Regards
Henrik

Thank you for your fast reply. Is (1) something that could be object for a RFE? I think it's a common work flow to export the latest versions from a development server to a production server.
Regards
Henrik

Export/Import questions

Hello all ,
We are suing the icommand utility but did not find how to:
1) Export a base view
2) Export schedule parameters of a plan.
TX in advance ,
Alon

Hi Alon,
See the BAM Enterprise Link Utilities User's Guide for additional Enterprise Link import/export capabilities not exposed via ICommand.
Regards, Stephen

Portal content Transport Packages Export/Import Question.

Hi,everyone:
I have a problem when Export packages of portal content,the epa-file is correct on the server however become error after download from the server to localhost.
The bug is Function of Download itself,if anyone have meet this case and help me. I need your help!
Regard!
Fish

Hi Ree,
As I mentioned in my previous reply it is working perfectly for me. The import is creating the required files in the PCD.
Let me explain how it is done.
Create a TP
Create a folder and add the required files(Workset,pages, iviews etc) to the the folder.
add the folder with all the contents(select 'Add all objects to transport package' from the content menu) to the TP.
Export the TP. give a name of your choice(removing the numbers)
Download it to the local machine using the dowmload link.
the file will be saved as a <i>TPName</i>.epa in your local drive.
in import, select 'client' for Source for Package Files.
brose and select the <i>TPName</i>.epa file.
upload the file, and you can see the contents.
then import it to the new environment. Now the complete folder stucture will be created in the PCD exactly as you created it for the TP.
I hope you are doing like this. It should work
Are yo able to open the downloaded file with WinZip?
cheers
Kiran

Aperture to Lightroom Export/Import question

For those who have done the Aperture - Lightroom move (for whatever reason), did you use the built-in Aperture to Lightroom importer that I understand is part of of LR5 or did you use a third-party exporter like Aperture Exporter?
What were your reasons for your choice? My Aperture library is around 68,000 photos, but only around 3,000 show up when I check as "adjusted", so my main concern is trying to maintain some semblance of my folder structure and things like keywords, ratings, etc.
Thanks. Steve

I tried the plug-in (got a trial version of LR5) and after making sure that my entire Aperture Library was referenced, started it - and made sure to tell it to leave the files where they were! To my dismay (1) a lot of photos that I would have expected to be imported came back with errors - even though the ORF Olympus RAW file was a supported camera and more importantly (2) a lot of my photos that were in particular folders, now found themselves in folders based upon the date the photo was either taken or imported into Aperture. Now I read about this - but it is only supposed to happen if you had a managed library and then LR would move the image files into folders based upon dates.
My library had about 68,000 images and after about 6 hours it was up to 30% or so, so I just clicked on DONE to see how it was handling my folder structure.
I am now trying with an application called Aperture Exporter (they have a trial version, but it has limitations on how many photos it will import) and it seems to be handling the export much better. It is keeping my folder structure intact, keeping my metadata (mainly keywords) and any photo that had adjustments in Aperture applied it gives you the option of exporting the original RAW/JPEG file along with a copy of the adjusted one - either as a JPEG or TIFF. Only "issue" would be that you have to have enough hard drive space to duplicate - at least initially - your entire photo library. Don't see an issue to do the export one folder or project at a time (at least not in the demo version).

11gR2 to 10g Export/Import

Hello,
Does exporting from Oracle 11gR2 and importing to Oracle 10g work?
Thank you!

Alex,
this forum deals with migrations from foreign databases to Oracle. Your export/import question should be better posted in this forum:
Export/Import/SQL Loader & External Tables
You might also have a look at the My Oracle Support note:
Article-ID: Note 132904.1
Title: Compatibility Matrix for Export And Import Between
Different Oracle Versions [Video]

Export-Import and Naming convention question

All,
Newbie here. Have a question related to the naming convention for SAP R/3 system and XI manual export/import process. We are currently in the development environment where our R/3 systems are named as D55CLNT400, D56CLNT300 etc (first 3 characters are the system id, and last 3 are the client number.) This is per the XI best practices convention.
The question i have is - if we name the technical system as above - and export the configuration objects from the Dev to Test environment - where the R/3 systems are named as T55CLNT400, T56CLNT300 (similar naming structure). Does it mean that we need to manually change almost all of the items in the Test environment on the configuration side (like business sytem name, interface determination, receiver determination etc)
Is this the correct way or are we missing something??? I would have preferred a way - where we needed to only update the communication channel parameters.
Thanks.
Message was edited by:
thezone

In the SLD, create three Business System Groups: DEV, QAS and PRD.
In each of these groups, you must have the relevant application servers (in your case, R/3s) and one integration server (XI).
Then, for each Business System in Group DEV, define a transport target in QAS group.
In your case, the transport landscape should be like this:
D55CLNT400 -> T55CLNT400
D56CLNT300 -> T56CLNT300
XI_DEV -> XI_QAS
Do the same for the QAS group (defining transport targets in PRD group). Observe that you need to have the same number of Business Systems in each group for this to work properly.
Now, when you transport your configuration objects from XI_DEV to XI_QAS, all the Business Systems in DEV landscape will be replaced for the equivalent ones in QAS landscape.
More info: http://help.sap.com/saphelp_nw2004s/helpdata/en/ef/a21e3e0987760be10000000a114084/frameset.htm
Regards,
Henrique.

How to do fast export and import

i have a windows 2003 server and oracle 10.2.0.3 installed on it.
here i want to ask how i can speedup my export and import using expdp.

Hi User,
user11798002 wrote:
i have a windows 2003 server and oracle 10.2.0.3 installed on it.
here i want to ask how i can speedup my export and import using expdp.You can utilize parallelizing export when using data pump,but for traditional export use the following
Export of Databases - reads data by running a select statement of the data and generating the DDL to perform the import process in future.
Fast Exports
1) Use direct=y
2) Until disk is not fully utilized try running exports in parallel.
3) Keep export file on different disk then the datafiles.
4) Run exports in two part rather than one i.e. 1st rows=n and second as indexes=n rows=y constraints=n.
Fast Imports
1) Use the first file out of two files created with the exports, It will insert all data but will not create any indexes and constraints. Once the data insertion is done run imp with indexfile option to extract script of index creation in text file. edit the file to include parallel clause and set parameters db_file_multiblock_read_count to 128 with sort_area_size to a higher value and workarea_size_policy=AUTO.
A R P I T S I N H A
[oracledba.in]

Newbie export and import question

Here's the next part. I have a system with roughly 3+ billion records.
My design is to convert the data in the company's db to ours. The db is still in production so my thinking was to export a day's worth of data using Oracle's exprt functionality. Export takes parameters so I can give it psuedo code like export... where date = yyyy/mm/dd.
On the oracle export faq it says it may not work well with large data sets. On daily average could Oracle export 3M records and import it into another table?
It's on this table I'd put the sequence - from thread Sequence question, need to prefix the sequence with a 4 digit incrementing
Thanks
Message was edited by:
user618862

Sounds like the worst possible solution but then you provided no information as to version numbers, latency, number of tables, transaction size, partitioning, or number of tablespaces.
Assuming a currently supported version of the product why not?
1. Transportable tablespaces
2. Streams
3. DataPump
4. External tables
Export/Import is deprecated technology. It should be the option of last resort.

Importing/Exporting + syncing Questions

Hi there,
just a question with regards to Importing/Exporting + syncing .
First of all, is it possble to sync Yahoo Calendar with iCal, or is there a cool widget/tool that does so in real time?
Second, I currently have a Mac at work running 10.2.8 and would like to somehow sync to my Mac at home running 10.4.8 without exporting/importing from media devices. The Mac at work is always online running through cable connection to outside world... My Mac at home is connected to a switch and than through adsl modem to outside world... What is the best way to connect the two through the Sharing setup in System Preferences
thanks

I'm interested in the same sort of thing. i have a Desktop at home and a laptop on the road. Usually with other files and apps, I just copy the files to my lap top before I leave, but with iCal, I do not know where the 'file' is...?

Question Pool export / Import problems

Hi All!
There has been very short time between the Captivate releases
but I'm very happy about all the new features. Still I feel like
Captivate 3 is more like a beta release because of several annoying
problems. Perhaps it's just me?
I'm starting a blank project and importing a preferences file
for my projects. This pref. file have, among other prefs, buttons
and review text changed. When importing my questions from another
pool/file these settings are ignored. Can anyone explain why? I'm
also experiencing "apply to all" feature in the "properties" window
only randomly making my changes to include all slides and not just
the one I make the changes on. What I'm I missing? I've set the
"settings" right and like I said it works sometimes as expected.
Please help anyone :)
Thanks

Good day, Heffalompen
While I won't be able to provide any of the technical reasons
why things work as they do (or don't
) I would think that for the question pool imports,
it would work like this.
Our story begins with a small journey into the fascinating
world of Cascading Style Sheets (CSS). If you know anything about
them, it may help this analogy. If not, I should still be able to
help shed some light. CSS is used in conjunction with HTML pages to
influence formatting. For example, using CSS you may state that all
normal text on a page will be presented to the user in Arial font
at 12 points and bright red color. If you link that file to HTML
pages, you may literally influence thousands upon thousands of
pages with one simple CSS file. So think of your preferences file
as the CSS file I just described.
Within each HTML page, you have the ability to render certain
select bits of text as you wish. Again, using the principles of
CSS, you may elect to apply what is called an "in-line" style to
the text. Maybe you want this specific text to be bold, Tahoma font
16 points and bright purple color. And so it is.
But here's the deal. Later, you decide to change the
foundation CSS file. Perhaps changing the font to green text. You
make the change to the CSS and whoosh. That change cascades through
all your linked HTML files. EXCEPT, those bits of text where you
applied the In-Line formatting. Those are left alone, because you
explicitly applied a style that stated these are different and here
are their rules. So think about those imported questions as having
in-line styling applied.
As for the "Apply to all" setting, I think that this one may
not work 100% as one would hope it would. For me, it's occasionally
been a "hit and miss" affair. Not always, but sometimes.
Cheers... Rick

System copy using R3load ( Export / Import )

Hi,
We are testing System copy using R3load ( Export / Import ) using our production data.
Environment : 46C / Oracle.
while executing export, it takes more than 20 hours, for the data to get exported, we want to reduce the export time drastically. hence, we want to achieve it by scrutinizing the input parameters.
during export, there is a parameter by name splitting the *.STR and *.EXT files for R3load.
the default input for the above parameter is No, do not split STR and EXT files.
My question 1 : If we input yes instead of No and split the *.STR and *.EXT files, will the export time get reduced ?
My Question 2: If the answer is yes to Question 1, will the time reduced will be significant enough ? or how much percentage of time we can expect it to reduce, compare to a No Input.
Best Regards
L Raghunahth

Hi
The time of the export depends on the size of your database (and the size of your biggest tables) and your hardware capacity.
My question 1 : If we input yes instead of No and split the *.STR and *.EXT files, will the export time get reduced ?
In case you have a few very large tables, and you have multiple cpu's and a decent disk storage, then splitting might significantly reduce the export time.
My Question 2: If the answer is yes to Question 1, will the time reduced will be significant enough ? or how much percentage of time we can expect it to reduce, compare to a No Input.
As you did not tell us about your database size and hardware details there is no way to give you anything but very basic metrics. Did you specify a parallel degree at all, was your hardware idling for 20 hrs or fully loaded already?
20 hrs for a 100gb database is very slow. It is reasonable (rather fast in my opinion) for a 2tb database.
Best regards, Michael

Performance benefits from database export import

Hi guru,
I have SAP R3 47.X110 WIN/SQL2005.
I want to improve performance by a sort of database reorganization.
I read this note Note 159316 - Reorganizing tables on SQL Server SQL 2000/2005
but , there the method descrived is not much quick to do.
The question is : there is lot performance's benefits from make an export of my instance then re-import , according system copy procedure?
Or there is another quick way to reorganize database?
Thank you very much for answer.
Antonio.

You want to do an export/import or a reorganization to get more performance. The question is: does it make sense? The given Microsoft article and the mentioned notes describe pretty well, in which cases it makes sense and in which not.
I wouldn´t start with the last step (reorganization) but I would more try to find out, where the real problems are. Checking the I/O system throughput using performance monitor (perfmon.exe) on Windows, checking long running statements using ST05 and finding out if you have a real index fragmentation using the given DBCC procedures.
If you come to the conclusion then, that a reorganization makes sense, then I would do it.
And as stated in the SAP note, if it would become faster after such a task, the underlying I/O subsystem is not fast enough to serve all the requests.
There´s no general statement as "if you do reorganization using method A or method B it will be faster" because the reasons for a slow performance can vary.
Markus

Fast EXPORT/IMPORT Question

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