Creating aggregates on partitioned Cube?

Hello Everyone,
We have a cube partitioned by Fiscal year/period. Will creating aggregates help at all after partitioned is done? Essentially, do you create aggregates if a cube is partitioned? Is it either partition or aggregate?
Thanks

Hi,
these two concepts are independant: you can create an aggregate or not:
- if your AGG has 0FISCPER, it will be partitionned as well.
- you can create an AGG without 0FISCPER; it won't be partitionned
Of course it makes sense to create an AGG on partitionned cubes! And of course it will help....
I magine an AGG with 0FISCYEAR compared to the same AGG with 0FISCPER; it will have potentially 12 times (if your fiscyear has 12 periods...) less records thus queries using it will be definitively faster.
In adidtion you can create an aggregate for a particular FISCYEAR (e.g. 2007)...
Please note that partitioning will only help if your cube is collapsed; indeed the partitionning only affects the E fact table.
hope this helps....
Olivier.

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Can we create aggregates on the cube which has been compressed. We have a AP cube with 60 Millions of data. If we compress it now, going forward, can i create Aggregates on that cube. How is the performance will effect.
Answers will be rewarded...

Hi......
This is a tablespace problem........its better u contact any Basis people.......Since the no of records is huge......due to this the problem arrise..........they can solve the issue.....
Anyways check this......
http://help.sap.com/saphelp_46c/helpdata/en/2e/d9507794f911d283d40000e829fbbd/content.htm
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Debjani.....

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magesh,
aggregates on multiprovider would mean separate aggregates on the constituent cubes / ODS...
Go to the cube and select propose aggregate from query and select your multiprovider query - use the aggregate(s) proposed for the same....
When running the query on multiprovider , the agregates on the constituent cubes will be used...
Arun
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If I need to decide one out of three i.e., INDEXING or AGGREGATES or PARTITIONING for better performance.. ??
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Hi,
For query performance and dataloading performance we need all the three.. So we cannot say this one is better than other as per my knowledge..
Partition:
By using partitioning you can split up the whole dataset for an InfoCube into several, smaller, physically independent and redundancy-free units. Due to this separation, performance is increased when reporting, or also when deleting data from the InfoCube.
Aggregates:
An aggregate is a materialized, aggregated view of the data in an InfoCube. In an aggregate, the dataset of an InfoCube is saved redundantly and persistently in a consolidated form on the database.
Aggregates allow quick access to InfoCube data during reporting. Similar to database indexes, they serve to improve performance.
Index :
Indexes are created in the fact table for each dimension allow you to easily find and select the data. When initially loading data into the InfoCube, you should not create the indexes at the same time as constructing the InfoCube, rather only afterwards.
The indexes displayed are the secondary indexes of the F and E fact tables for the InfoCube. The primary indexes and those defined by the user are not displayed. The aggregates area deals with the corresponding indexes of the fact table for all aggregates of an InfoCube.
Have a look at the below document..
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/e7deb490-0201-0010-f882-ef40f8c9bb5c
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Hi,
I know the conditions when to create aggreate and on what propasal options do we have(St03,rsa1)..all i know but the thing is suppose for a cube 0SD-C01 how we can estimate whether we require aggregates or not..i mean to ask can anybody give me the navigational steps how to conclude whether we require aggregates for a cube?
thanks for sharing knowledge..

Hi sai mukesh
Let me be clear about u r question..
U want the info how to decide the aggregate and how to create the aggregate right..
if thats the case
First of all create the query on the cube and try to estimate the usage of that
particular query go to RSRT and there give u r query just click on Execute+debug
it will show u a pop up ther sect the aggregate info it will show u the proposed
aggregate info with the dimensions make a note of that and then just go to RSA1
selct your cube and then counter click on it select maintain aggregate it will show
u new screen click on the dimensions which u got in RSRT and dactivate it then
come back to RSA1 screen selct u r info provider counter click on it go to mange
rollup and fill the aggregates ..and run the query twice check the query run time...
Hope itz clear..
Cheers
R M K
**Assigning pointz ez da only way of saying thanx in SDN**
Message was edited by:
R M K

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Can Navigational attributes be used to create aggregates ?

Can Navigational Attributes be used to create aggregates?

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Steps before creating aggregates

Hi GURUS
I got an requirement for creation of aggregates for a customized cube.Need to know what are the considerations need to take before creating aggregates.
Thanks

Hi,
If you want to creat aggregates based in system proposal be sure that you are gathering statistical information for your infoprovider.
aggregates:
[http://help.sap.com/saphelp_nw04/helpdata/en/7d/eb683cc5e8ca68e10000000a114084/frameset.htm]
Bw statistics:
[http://help.sap.com/saphelp_nw04/helpdata/en/72/e91c3b85e6e939e10000000a11402f/frameset.htm]
regards

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Hello To All Members!
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[Edited by: admin on 31-Mar-2007 08:32]

Hi there,
do know for the UlltimateBootCD4Win? This from CD bootable WinXP-BartPEedition with additional tools gives you the ability to make such things like partitioning, backup or formatting your HDD.
It has many more applications which help you to maintain your system without booting your original OS.
So I think that this CD will solve your partitioning issues.
Heres a link: www.ubcd4win.com/
Just try it and tell me your opinion.
Nice weekend and greetings from the sunny south ;)

Creating aggregates on partitioned Cube?

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