Delta and Init Upload

Hello Friends
I have some confusion regarding the difference b/w delta upload and Init load.
Are they related to each other, if yes then how? Cant get a clear explanation for this.
Secondly, If i have loaded data into a cube from an ODS with request no for eg. R1 and other req no with R2. If after the successful request and data going into the cube..after some time i change the req. R1 status from green to red, will i be able to view the data in the cube coming from req R1?
Need ur comments
Regards
Rohit

Hi Rohit
Have quick look at the follwoing thread it was already discussed
Re: init delta
Re: Delta and INIT loads
Coming to your issue yes you are able to see the data bcz once the data is
suceesfully loaded in to the cube .it will maintain the data .It wont bother about
ods request..
Regards
R M K
Assining points is the only way of saying thanx in SDN ***

Similar Messages

Delta and init deletion

Hi,
I had a COPA load which got failed and trying to delete the Delta and init but its not allowing me to do that..
I have changed the request to red...
Kindly can anyone will help..
Thanks

Hi,,
First of All Please check whether you have authorization to delete data from ODS/Cube
Make sure that there is enough space (DB02) in the system to do deletion. And also make sure that there is free back ground processor before starting the job.Go to SM37, find deletion job and check logs. Maybe there will be some messages which tell you why request was not deleted
Apply Note:592620 and follow Case 1. Try this in Development and then go ahead. You need to open the client inorder to do it.
I would like to ask actually whats the error u r facing, Is the request failed due to some error record.
Bear in mind if the error request has any successive requests (later requests than the error request) then they would also get deleted so you need to reconstruct them
So be careful.

- Differences between delta and full uploads of transactional data

Hi All,
This is with refrence to the loading transactional data into the cube.
I know that delta and full uploads of transactional data into the cube is done for the following reasons.
1. Delta upload allows change in transactional data (add/delete/modify) for the particular period selected but this is not the same in full upload.
2. Full upload takes less time compared to delta upload for the particular period.
Please let me know whether my understanding is correct. Otherwise, please explain these two concepts with examples taking loading transactional data into the cube.
Regards,
Ningaraju

hi,
full upload is done to avoid more time to load the data .if u use initilallization then it will take more time to laod the same amount of data when compared to full load.
however your statement about the delta is correct.
u can perform delta only after sucessful initiallization.
so
1.first full load(to avoid more time0
2. inirtilallization with zero recored.
3. delta
regards

Delta and full uploads in the same data target?????

I have found that delta load and full update from different infopackages are getting loaded into the same data target that is ODS object. when do we go for such situation, can any one explain me in detail or give me some documents to know more about it.

Hi,
You have not clearly mentioned that those infopackages are ctrated on the same Datasource or not.
This way of uploading is very common when we need to upload some data from R/3 and some other data from Flat file into the Info cube. And GenerallyFlat file data would not be given in Before image and after image way, thats why we need to do full uplaod. The deleetion of already uploaded flat file data fromt he cube (before new upload from flat file ) depends up on whether the data to be uploaded from flat file system is always new data or not. And generally R/3 Extractor is capable of giving deltas, thats why only delta loads to the cube.
With rgds,
Anil Kumar Sharma .P

Delta and Init Process when R/3 is connected to multiple BW systems

I have a scenarion where one R/3 system connected to 2 BW systems.
In R/3 we plan to have a LO extractor feeding delta to 2 BW systems. I understand delta works fine as delta queue in RSA7 is target system specific.
How are the initializations handled?
What happens if delta in one of the BW system breaks and we need to re-Init?
How would re-init from one BW system affect the delta/init in the other BW?

Hey. I'm assuming both BWs are pointing to the same system/client. I do not have actual experience doing this as I would be very hesitant to have multiple BW systems trying to get delta data from the same source (especially with how logistics behaves).
I know this isn't answering your true question, but could you connect BW system B to pulling the data from BW system A? So something like:
R/3 (logistics) => BW A 1st layer DSO
BW A 1st layer DSO => BW A reporting DSOs/Cubes
BW A 1st layer DSO => BW B reporting DSOs/Cubes
In this way, reporting in BW systems A and B are from the same DSO stage. This would help with any synch/data consistency issues. If A or B reporting providers get corrupted, or whatever, either could be reloaded from BW A 1st layer DSO and everything is still in synch.
Not sure if this helps you or not, but thought I would offer it up as this would probably be my approach.
Thanks

Deltas and full upload

Hi all,
Let's say we have a scenario like this.
For document number 1001 and document item number 10,
the order quantity was 200 initially. This was transferred to infocube. Now, the order quantity changed to 180. I assume that in a delta upload, -20 will be transferred to the cube. But, for full-upload what value gets transferred to BW. Is it 180? If so, how does these values get tallied? I mean, 200+180=380. What really happens here?

hi Pooja,
initialize in infocube
doc no doc item order quantity
1001   10       200
change to 180 in delta upload, records in infocube will be
doc no doc item order quantity
1001   10       200
1001   10       -200
1001   10       180   (value in report = 180)
full upload
1001   10       200
1001   10       180 (value in report = 380)
hope this helps.

DELTA AND INIT TO CUBE Simple

Please help me with this, I have a bad red delta request coming from billing ods in bmw cube so i deleted the request, but bmw cube has other green request coming from order and delivery which is fine green and success.
now to resolve this i deleted the red delta request of billing and also deleted every thing from ods and i redo the set up table and did init to billing ods but now when init goes to bmw cube it fails please tell me the exact step to resolve this please tell me how can i set up the delta again so that init from billing ods goes to cube
help me with navigation step.i do not want to delete the entire data from cube to resolve this
thanks
soniya
soniya

Let me try to get it.
Your ODS has delta coming in for a specific fiscal period? Is there no overlap (meaning one billing document coming in as new into the ODS and cube is not changed in the next period)?
If not, there may be a problem.
Consider the case where you had a document which came in earlier (successful) request, and is there in the cube (say with a original qty of 25). Now, say your last delta had a change to it (of qty increased by 5, say), and this delta failed to go to the cube. Now you are doing a full load with repair for this period.
Since you are doing a full load, it will bring a qty of 30; however your cube has the earlier record (with a value 25), so instead of total 30 (correct) you will end up with a value of 55(incorrect).
The difference here is that your delta which failed had a qty of 5 (incremental amount) for this doc, but now you are bringing the qty of 30 with a full load.
This is a theortical scenario which can cause inconsistency to your data. If there is no case where an earlier existing record was being changed in the last delta (ie last delta had all new records) then you should be ok.

How can I delete all delta request and init from InfoCube?

Hi,
We are working with an extractor that support deltas, but we are presenting problems with it, some changes in the data are not displayed. For this reason we are thinking change this type of processing and make a full load (with the full updating the changes are shown).
For this reason we need to delete all requests of delta and its init. But in manage option of the infocube we cant see the init and the first deltas.
If I delete the initialization information at info package (menu option scheduler-> initialization). With this only we will delete the Initialization. I need to delete the data in the infocube.
I would appreciate your help.
Regards,
Victoria

Hi Victoria,
You can either display all the requests in the manage tab and delete from there. Or you can use the Automatic Request Deletion option in the Data Target tab of the InfoPackage. See here for details:
http://help.sap.com/saphelp_nw04/helpdata/en/80/1a65a8e07211d2acb80000e829fbfe/content.htm
Hope this helps...

Question regarding deltas and filling of setup tables

Hello Friends,
We are using the Sales Order Item Datasource 2LIS_11_VAITM. We have transported it to BI Production. We have initialized the delta and the deltas are running for the past 3-4 months.
Now we had a new requirement which was getting satisfied by the Sales Order Header and Sales Order Header Status DataSources, 2LIS_11_VAHDR & 2LIS_11_VASTH respectively.
Now we wan to transfer both these (header & header status) DataSources to BI Procution. My question is:
1) Do we have to refill the setup tables again in R/3 for the Sales (11) application?
2) Do we have to reload the entire Sales data again from scratch.
3) Is there any way to transport the 2 new DataSources to BI Production and without disturbing the already running deltas of Sales Order Item Datasource?
Regards,
Prem.

Hi,
1) Do we have to refill the setup tables again in R/3 for the Sales (11) application?.
Yes you need to refill the setuptables, because if you want to load deltas, you need to do Init then deltas, other wise first time when you are filled setup tables, (first load init with the existing data in setuptables) from that day to till date you can do full then you can set delta.
It is better and good to fill setup tables and load.
2) Do we have to reload the entire Sales data again from scratch.
Any way you need down time to load the other 2 datasources, and also for 11 application you are filling setuptables.So for perfectness it is better to load from first.
3) Is there any way to transport the 2 new DataSources to BI Production and without disturbing the already running deltas of Sales Order Item Datasource?
If you transport the new datasources then delta won't distrub in BW. If you did any changes to DataSource and trying to transport it to production then it will give error, because LBWQ and RSA7 will have data so first you need to clear it and then transport it.
Thanks
Reddy

Difference: Full load, Delta Load & INIT load in BW

Hi Experts,
I am new to SAP BW Data warehousing.
What is the difference between Full load, Delta Load & INIT load in BW.
Regards
Praveen

Hi Pravin,
Hope the below helps you...
Full update:
A full update requests all the data that corresponds with the selection criteria you have determined in the scheduler.
You can indicate that a request with full update mode is a full repair request using the scheduler menu. This request can be posted to every data target, even if the data target already contains data from an initialization run or delta for this DataSource/source system combination, and has overlapping selection conditions.
If you use the full repair request to reload the data into the DataStore object after you have selectively deleted data from the DataStore object, note that this can lead to inconsistencies in the data target. If the selections for the repair request do not correspond with the selections you made when selectively deleting data from the DataStore object, posting this request can lead to duplicated data records in the data target.
Initialization of the delta process
Initializing the delta process is a precondition for requesting the delta.
More than one initialization selection is possible for different, non-overlapping selection conditions to initialize the delta process when scheduling InfoPackages for data from an SAP system. This gives you the option of loading the data
relevant for the delta process to the Business Information Warehouse in steps.
For example, you could load the data for cost center 1000 to BI in one step and the data for cost center 2000 in another.
The delta requested after several initializations contains the upper amount of all the successful init selections as the selection criterion. After this, the selection condition for the delta can no longer be changed. In the example, data for cost
centers 1000 and 2000 were loaded to BI during a delta.
Delta update
A delta update requests only the data that has appeared since the last delta. Before you can request a delta update you first have to initialize the delta process. A delta update is only possible for loading from SAP source systems. If a delta update fails (status red in the monitor), or the overall status of the delta request was set to red manually, the next data request is carried out in repeat mode. With a repeat request, the data that was loaded incorrectly or incompletely in the failed delta request is extracted along with the data that has accrued from this point on. A repeat can only be requested in the dialog screen. If the data from the failed delta request has already been updated to data targets, delete the data from the data targets in question. If you do not delete the data from the data targets, this could lead to duplicated data records after the repeat request.
Repeat delta update
If the loading process fails, the delta for the DataSource is requested again.
Early delta initialization : This is a advanced concept, but just for your information ...
With early delta initialization you can already write the data to the delta queue or to the delta tables in the application while the initialization is requested in the source system. This enables you to initialize the delta process, in other
words, the init request, without having to stop posting the data in the source system. You can only carry out early delta initialization if this is supported by the extractor for the DataSource that is called in the source system with this data
request. Extractors that support early delta initialization were first supplied with.

Delta and LBWE

Hi Gurus
I have understood the delta mechanisam for LO extraction ( LBWE >>>Job control ) where we first have to select direct delta ( for full load ) and queued delta ( for subsequent delta load ) Am i right?
now when we load the data we create 3 info pkg.
1.full load
2.Init
3.delta load
so would you pl tell me whats the difference between update mode we are giving on infopkg level and the things we are doing in LBWE under job control.? Pl help me to clear this doubt.
second thing is when we do extraction other then LO ( may be generic / from table / from FM ) why are we not going to LBWE and how we are managing delta in those case as job control will not there as we are not using LBWE.
pl help.

Hi krishna,
For the first question,
The update mode in the infopackage tells the system to identify the way it can bring the data into BW that is, if you select the full load it brings all the records or if you specify initialize delta process, it brings in all the history data and if you specify delta process, it brings in only the changed or recently created records.
The selection of the queue delta or direct delta in LBWE is to tell the system how to store the transaction data in the BW delta queue in source system(like R3)like if you say queue delta, then all the sales orders which you have created in OLTP system(R3 system)gets piled up in delta queue in the order in which they are created.So, setting in LBWE is totally different from setting in Info package.
For the second question, Only for Logisitics we use LBWE like for eg. Materials management , sales and distribution, etc and in other areas like FI and CO,there are standard settings through which you can get delta and i think you shall set up once those settings in source system and the delta is taken care of.
Hope it helps.
Message was edited by: Rao

Deleted bad delta and former good deltas form data mart to targets(5)?

Hi experts,
My process chain failed in continues for 5 days due to DSO activation issue. On further analysis I found a bad request with status red on july 3rd and their is no psa to fix it.
I deleted the bad request that is loaded on july 3rd with status red and all the god requests with status green on july 4th,5th,6th,7th and 8th.
The data load is going from data mart to 5 different targets (3cubes and 2 DSO's) and i deleted the requests listed above with all the 5 targets.
Know When I try to run new delta it is saying that 'new delta is not possible and asking for the previous deltas'
What to do know? Should I delete the init and reinit with out data transfer and load my new delta? I am affraid that I may loose data if i do this.
Thanks in advance.
Sharat.

Murali,
I have the failed delta in the targets (3cubes and 2 ods). I deleted the bad delta and the former good ones after july 3rd from all the five targets by verifying the technical name of the requests in the targets.
How should I proceed know?
Can I do a full repair request and new delta? or delete the init and reinit without data transfer and do a full repair and a new delta?
Please let me know. Thank you for your help.
Sharat.

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