L00 and L01 in BW Query based Universe for Characteristics

Hi All,
While creating a universe based upon an SAP BW query, the BW characteristics seem to be doubled as dimensions, with one group markeded L00 and the other as L01.
Why are they doubled?
Is one "better" than the other?
For what purpose?
They key value in L00 returns "all" and L01 returms the key, but all attributes seem to be the same.
Thanks for your help,
John Hawk

Hi,
From an OLAP point of view a characteristic is like a dimension, that means that it contains all the members (level L01) and the All member that aggregates the characteristic members (level L00);
These metadata are provied by SAP BW when using OLAP drivers.
For a characteristic, the level L00 is not necessary unless you want to use the All member.
On the other hand, the level L00 is significant for hierarchies, hierarchy varaibles and structures because it contains members.
We provide an option for the universe generation and the universe update that allows to generate or not the level L00.
This option is available since BOE XI3.1 SP2.
In SP3, we improved the L00 generataion to only impacts the characteristics and not hierarchies and structures.
So the recommendation for characteristics is to not use L00.
Regards,
Didier

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Difference between Dimension Objects L00 and L01

Dear SDNers,
While I was creating a universe data source as SAP BW Cube(OLAP) in the business layer of the universe Designer creates a class containing the characteristic as two dimension objects: Level 00 and Level 01. Ex: Material is Class-->Material Number is Sub Class->L00 material number,L01 Material Number as dimension objects and L00 Material Number Key,L01 Material Number Key as Detail object.
Please tell me What is the difference between L00 and L01 ? I have read the help but I could nt get it.

Hi swathi,
From an OLAP point of view a characteristic is like a dimension, that means that it contains all the members (level L01) and the All member that aggregates the characteristic members (level L00);
These metadata are provied by SAP BW when using OLAP drivers.
For a characteristic, the level L00 is not necessary unless you want to use the All member.
On the other hand, the level L00 is significant for hierarchies, hierarchy varaibles and structures because it contains members.
We provide an option for the universe generation and the universe update that allows to generate or not the level L00.
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So the recommendation for characteristics is to not use L00.
All the best
Praveen

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When we creating universe on BW we get the class it is level 00 and level 01
what it is exactly... can any one tell me clearly about this.......
I am still not clear about the difference between L00 and L01 objects. can u please explain once again with example
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Hey Ravi,
Intg kit for SAP (BI - OLAP cube) will map all your:
Characteristics - Dimension objects(BO)
Attributes - Detail(BO)
KeyFigures/CKF/RKF - Measure objects (BO)
The mapping by default give you L00 & L01 objects for all Dimension & Detail objects and Value,Name to measure objects.
L00 - Will carry Hierarchy definitions & Descriptions.
L01 - Will carry the LOV's(data), in few cases we should opt for Detail objects like Key, Name etc...,
All reporting will be done using L01
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Hi,
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Edited by: Shivu Kumar on Sep 15, 2009 3:38 PM

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This may sound basic and I apologize for asking this, but the refresh structure in SAP based universes is somewhat different from noraml universes.
Here is what i'd like to do:
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- Rename all the L01 objects and move them to a new Class.
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regards,
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L00 and L01 in BW Query based Universe for Characteristics

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