Rollup and compression for inventry

how to do inventry cube compression

hi,
clearly explained in:
( search for the keyword "compression" )
in ...
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/f83be790-0201-0010-4fb0-98bd7c01e328
Assign points if useful ***
Thanks,
Raj

Similar Messages

Relation between Rollup and compression.

Hi All,
Is there a relation between rollup and compression ? i.e if i compress the cube, will the rollup job be faster ?

Hi,
Thanks for all your replies. Now the picture is crystal clear.
1. A compression job moves data from F table to E table. This is also applicable for aggregates. If you schedule a compression job for a cube, the aggregates are automatically compressed( You can also compress aggregates of a cube without compressing the cube. There are programs avalibale for the same).
2. Assume that you have not done compression . If you load the data to base cube ,it takes more time to create the indexes after loading.
3) Assume that you have done compression . If you load the data to base cube ,it takes less time than 2 point to create the indexes after loading.
On similar lines, if aggregates of a cube are compressed before rollup, then rollup will be faster. This is what exactly I have experienced. I had a cube which had 1000 request. It was never compressed. The rollup job for the cube used to take around 60,000 seconds. I compressed 900 requests. Now the rollup job gets over in 2400 seconds.So the conclusion is the following:
When aggregates of a cube are compressed, the rollup job runs faster.
Message was edited by: Tej Trivedi

Difference between " COMPRESS FOR ALL OPERATIONS" and "COMPRESS FOR OLTP"?

I was looking through Oracle's OLTP Table Compression (11g onwards) documentation as well as online resources to find the syntax and came across two different versions:
COMPRESS FOR ALL OPERATIONS
and
COMPRESS FOR OLTP
The documentation I looked through didn't mention any alternative syntax, so i was wondering if anyone here might know the difference.
Thank you!

Table Compression Enhancements in Oracle Database 11G Rel1 as as follows:
The compression clause can be specified at the tablespace, table or partition level with the following options:
•NOCOMPRESS - The table or partition is not compressed. This is the default action when no compression clause is specified.
•COMPRESS - This option is considered suitable for data warehouse systems. Compression is enabled on the table or partition during direct-path inserts only.
•COMPRESS FOR DIRECT_LOAD OPERATIONS - This option has the same affect as the simple COMPRESS keyword.
•COMPRESS FOR ALL OPERATIONS - This option is considered suitable for OLTP systems. As the name implies, this option enables compression for all operations, including regular DML statements. This option requires the COMPATIBLE initialization parameter to be set to 11.1.0 or higher.

BW : Question what is rollup and compress

Hiii Guys ,
I wanted to ask that what do you mean by Rolllup the cube and compress the cube..Why do u need it?what is its significance and how it is done?
Plz let me know.
Thanks & Regards
MAdhavi S Bichakal

Hi Madhavi,
Roll Up :
It is done if our cube has Aggregates. When you update your Cube with fresh data it must reflect in aggregates of that with that fresh data so for this we do Roll Up.
If you do not perform rollup regularly, your report will show old data.
Lets say that you have aggregates on your cube and all requests have been rolled up as of now. Lets say the latest request is 34256...All data is available for reporting now upto request 34256.
Say you loaded your InfoCube again 4 times. These 4 requests are NOT available for reporting if they are not rolled up, even if the query uses aggregate OR NOT. So, if you run a query you will only get data upto request 34256, which was the last rolled up request.
So, if you have aggregates, its a best practice to rollup into the aggregates at the earliest for your reports to show latest data, usually as a last step in the same process chain that you use to load your InfoCube.
Compression:
InfoCube has 2 fact tables: E and F. F table has request number associated with each data load. When you compress the cube; data from F table is moved to E table. But request id is deleted from the data loads. Hence the data is stored in a compressed form.
Advantage of cmpression is better query performance.
Disadvantage: Once you move the data from F to E table; you cannot delete the data depending on the request number, you will have to use Selective deletion
Hope it helps.
Regards
Hemant Khemani

How to delete the rollup and compress request from the cube

Hi Experts,
I have a requirement, one request was updated into the cube and it was been rollup and then compressed. As the request was compressed so based on request id we cant perform the deletion.
So it is possible with selective deletion. Now before performing the selective deletion do i need to deactivate the aggregates.
Help me out on this.
Regards
Prasad

Hi.........
U hav to deactivate the aggregates................bcoz.........Selective deletion is only possible with uncompressed requests...............ie from F fact table...........after compression data moves from F fact table to E fact table.............. you can't do selective deletion on E fact table.........So first deactivate the aggregates............then do the selective deletion..............then again activate the aggregates..............and do the aggregate filling job manually in RSA1..............but I will suggest u delete the request...............bcoz any how u hav to deactivate the aggregates............and in case of selective deletion u hav to be very particular................if ur load is not taking much time............then delete the request and repeat the load............
Regards,
Debjani...........

Rollup and Compression in PC

Guys, Let's say If I have an infocube which has aggregates created on it. In a process chain how would the data flow look like?
Is this one correct??
START > DROP INDEXES > LOAD > CREATE INDEX > Roll Up of Filled Aggregates/BIA Indexes
Also what about the compression?
START > DROP INDEXES > LOAD > CREATE INDEX > Compression of the InfoCube
Thanks,
RG

Hi,
Yes, this is the process.
but regarding compression, it comes after roll up of aggregates(if aggregates exist)
hope this helps

Rollup and compression

hi friends
in process chain after rollup if it possible to include execute infopackage process type.
regards
siva

Hi Siva,
I think the following link's should help you with the procedure.
process chains
process chains
Process chains
http://help.sap.com/saphelp_bw30b/helpdata/en/ad/6b023b6069d22ee10000000a11402f/frameset.htm
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Ravikanth

Compress for all operation is New feature of 11g????

hey to all i'm going to create a table with compress option i used "COMPRESS FOR ALL OPERATIONS" IT does not create table using 10g and when i connect to 11g it create a table
i read the documentation of 11g managing table but this option is not very well elaborate there plz tell me the difference b/w compress and compress for all operation and either compress for all is supported in 10g or not
feel free to ask any question
regards adeel

Table compression was available in 10g as well.
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_7002.htm#i2128733
but "COMPRESS FOR ALL OPERATIONS" is new feature in 11g and the description for the same is self-explanatory.
http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/statements_7002.htm#i2128733
<quote>
* When you enable table compression by specifying either COMPRESS or COMPRESS FOR DIRECT_LOAD OPERATIONS, Oracle Database attempts to compress data during direct-path INSERT operations when it is productive to do so. The original import utility (imp) does not support direct-path INSERT, and therefore cannot import data in a compressed format.
* When you enable table compression by specifying COMPRESS FOR ALL OPERATIONS, Oracle Database attempts to compress data during all DML operations on the table.
<quote>

Rollup and Datamart concepts for compressed cube

Hi all,
I loaded the data into cube and i compressed it ( collapse ),
Then I have 2 questions
1. Can i use the Rollup option now?
2. Can I load the data into another cube by using the compressed cube?
good answers are rewarded
Regards
Ram

hi sri
Its not like we cannot do rollup before compression. You are right we do rollup to fill the aggregates. When you will do compression the request id will be deleted and the data will move from F table to E table. There will be no requst id at all.
We do rollup based on Request only. If there is no request how can u do rollup. the same requst will not be availabe for reporting if u dont do the Rollup to aggregates.
Regards
Khaja

Hello All... Back after a brief absence, things look a little bit different. I'm trying to take a 16 minute mini dv video and compress it for use on the web. I'm interested in any suggestions you may have on settings for the video and audio tracks. I'v

Hello All...
Back after a brief absence, things look a little bit different.
I'm trying to take a 16 minute mini dv video and compress it for use on the web. I'm interested in any suggestions you may have on settings for the video and audio tracks. I've tried using Sorenson 3 (15 frames, key frames set to automatic, 320 x 240) for video and IMA 4:1 (mono) for audio. The resulting video looked great but the file size came in at about 255 Mb.
Thanks!
PowerMac G5 1.8 Dual Mac OS X (10.4.3)
Message was edited by: Dan Foley

Thank you for the replies. Everyone was correct about the jack, interface, and phasing problems. I have been unplugging my motu audio interface and then using headphones at work. I have not changed any detailed audio output settings in logic. When I read that the jack might be a problem I tried switching headphones. This actually helped. I am using dre-beats headphones and they seem to be having issues with the mac/jack-(the phasing/panning problems. I can use these headphones with other devices but not the mac. I have to use ipod ear buds and the phasing seems fixed. Hopefully this information is helpful to someone else.
If anyone knows how to correct this issue please let me know its difficult to know what my final mixes are going to sound like and I have had to keep bouncing everything into i-tunes- sync to ipod and then listen in my car radio.

Create Table with Compress for OLTP and error ORA-14464

Hello,
i have a Oracle-DB 11.2 and want to use Advanced Compression.
I want to create a table:
CREATE TABLE TD_GE_1990
( "name_id" NUMBER(1,0),
"name_txt" VARCHAR2(100 BYTE)
) COMPRESS FOR OLTP;
But i get:
SQL-Fehler: ORA-14464: Kompressionstyp nicht angegeben
The "compatible"-Parameter is set to 11.1:
SELECT value
FROM gv$parameter
WHERE name LIKE '%compatible%';
11.1.0.0.0
Do i have to change something in the database?
Best regards
Heidi

14464, 00000, "Compression Type not specified"
// *Cause: Compression Type was not specified in the Compression Clause.
// *Action: specify Compression Type in the Compression Clause.

Compression for oracle database and index compression during import of data

Hi All,
I have a query , in order to import into oracle database and also have compression and index compression , do we have some kind of load args for r3load and also do we have to change the tpl file ?

Hello guy,
I did this kind of compression within migration project before.
I performed index compress first and then export -> import with table compress.
One thing you should take care, delete nocompress flag from TARGET.SQL (created by program SMIGR_CREATE_DDL, program SMIGR_CREATE_DDL created pure non-compression objects for these considered non-standard tables). For table columns > 255, we should not delete this flag.
Regarding to the index compress in source system, please check the following notes:
Note 1464156 - Support for index compression in BRSPACE 7.20
Note 1109743 - Use of Index Key Compression for Oracle Databases
Note 682926 - Composite SAP note: Problems with "create/rebuild index"
Best Regards,
Ning Tong

In adobe premiere cc 2014 , in the version for Apple , there is the " dynamics" in the audiometer / amplitude and compression/dynamics. In the same version for PC , there is no option. Somebody is also having this problem ? tks

In adobe premiere cc 2014 , in the version for Apple , there is the " dynamics" in the audiometer / amplitude and compression/dynamics. In the same version for PC , there is no option. Somebody is also having this problem ? tks

are you referring to the audio meters panel? im on windows, and i can right click the meters panel and get options for "dynamic peaks". there are audio effects, from the effects panel if thats what you are looking for? i have one named "Dynamics" as well as several compressors.

Converting and compressing mp4 video for iBook Author

I'm working on an iBook on Propaganda in WW II and would like to include loads of videos.
The Internet Archive has a great collection:
Example: "Out of the Frying Pan Into the Firing Line (1942)"
http://archive.org/details/OutOfTheFryingPanIntoTheFiringLine
Most are in mp4 format. I have tried bringing the mp4 into QT or iMovie and both seem to do about the same job of converting. Plus they increase file size by about 50%
Primary question
I'm targeting my iBook as a free resource for schools. File size is an issue for school iPads that might be 16 GB. Is there anyway to reduce file size, without losing quality? I saw some discussions about Compressor, but that seems to be designed for Final Cut Pro and I'm not a video expert.
Secondary question:
Is there any way to improve the quality of these old videos. Perhaps there are some settings I'm missing in QT or iMovie??
I'm an instructional design guy - not a video guy. Your suggestions will be greatly appreciated ... especially in laymen's terms.
Thanks

I'm keeping a "Working with IBA" collection at Scoop.it.
http://www.scoop.it/t/publishing-with-ibooks-author
I posted a link to this discussion ... and I received a comment (at Scoop.it) from Frank Lowney that's interesting. I don't have Pages, but I may get it try this out. (cheaper than Compressor!)
Frank comments:
"Strange but apparently true. I downloaded a 320x240 *.mp4 file from the Internet Archive and compressed it with the latest version of Handbrake using the iPhone/iPod touch preset. The result was 2.6 MB smaller that what I had downloaded. As predicted, iBooks Author rejected it suggesting I use QuickTime X Player. I did that using the iPod touch/iPhone 3GS preset but the result was a whopping 21.9 MB larger!
Let's remember that the sole target of what iBooks Author outputs is iBooks on the iPad, nothing else.
Next, I use Pages to create an *.epub file with the Handbrake encoded movie in it. Guess what? It plays just fine in iBooks!
So something is fishy here."

Compress for OLTP and ORA-14464

Hello,
i have a Oracle-DB 11.2 and want to use Advanced Compression.
I want to create a table:
CREATE TABLE TD_GE_1990
( "name_id" NUMBER(1,0),
"name_txt" VARCHAR2(100 BYTE)
) COMPRESS FOR OLTP;
But i get:
SQL-Fehler: ORA-14464: Kompressionstyp nicht angegeben
The "compatible"-Parameter is set to 11.1:
SELECT value
FROM gv$parameter
WHERE name LIKE '%compatible%';
11.1.0.0.0
Do i have to change something in the database?
Best regards
Heidi

This post is related to following thread and got resolved by changing compatible parameter to 11.2.0:
http://translate.google.co.in/translate?hl=en&sl=ko&u=http://kr.forums.oracle.com/forums/thread.jspa%3FthreadID%3D1594232%26tstart%3D345&ei=_u7QTKCwKIOfcbqxqdgL&sa=X&oi=translate&ct=result&resnum=2&ved=0CCMQ7gEwAQ&prev=/search%3Fq%3DORA-14464:%2BKompressionstyp%2Bnicht%2Bangegeben%26hl%3Den%26client%3Dsafari%26rls%3Den

Rollup and compression for inventry

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