You can also set up a generic delta using a delta-relevant field with a monotonically increasing value. Master data attributes or texts for which you want to use a delta transfer have to fulfill two prerequisites:. Data must be extracted generically using a transparent table or a database view. A change document object must be available that can update the complete key of the table or view used for data extraction in combination with one of the tables on which the change document object is based.
The required control entries are delivered for the most important master data attributes and texts. By including a maintenance interface for control entries in the maintenance of generic DataSources, you can use the delta transfer for other master data attributes or texts.
Enter the table and the change document object that you want to use as a basis for the delta transfer. An intelligent F4 help for the Table Name field searches all possible tables for a suitable key.
Confirm your entries. With a usable combination of table and change document object, the extraction structure fields are listed in the table below. The status in the first column shows whether changing the master data in this field causes the system to transfer the delta record. Apply the settings to generate the required control entry. Delta transfer is now possible for master data and texts.
You need two separate entries if you want to transfer delta records for texts and master data attributes. If a field exists in the extraction structure of a DataSource and the field contains values that increase monotonically over time, you can define delta capability for this DataSource. If such a delta-relevant field exists in the extraction structure, for example a timestamp, the system determines the data volume transferred in the delta mode by comparing the maximum value transferred with the last load with the amount of data that has since entered the system.
Only the new data is transferred. To get the delta, generic delta management translates the update mode into a selection criterion. The selections of the request are enhanced with an interval for the delta-relevant field. The lower limit of the interval is taken from the previous extraction.
The upper limit is taken from the current value, for example, the timestamp at the time of extraction. Update March Read more… February Due to a high amount of requests a preliminary version of this SP 6 was released. Big Data January BW is there to Stay! Click to start video. To ensure a smooth migration of the existing NetWeaver BW system from release 7. Read more… November This paper intends to describe a holistic solution for creating dynamic analytic privileges in HANA with filters based upon lookup procedures referring to a simple Authorization Model that exists and is maintained within BW.
November Update January September Marc F. Read the collection of some valuable lessons learned to understand better what common mistakes to avoid and how the sizing works in more detail.
While this clearly shows that SAP took the right decision early on the question is how these offerings differ from HANA and what the right choice is for a customer.
This blog from Klaus Nagel emphasizes and summarizes what makes BW-on-HANA so unique and invites you to simply compare the different solutions for yourself. August The BW system could be running on any database. When planners change their plan data they do not only want to enter the absolute number in the systems. In this paper we show how a simple solution can be realized where the planner can enter a simply formula and apply this to one or several cells in the worksheet. Scale Out — Best Practices.
Check out this latest comprehensive overview on the delta information for scale out implementations by Marc Hartz.
These are what we call mixed scenarios. Read more in this position by Klaus Nagel and Thomas Zurek. Queries that run quickly and produce the right results are crucial for customers. With the trace tool environment, it is now possible to set up test scenarios for the key queries of your BW solution and to re-execute and evaluate them whenever required. How to.. Watch this video! It should also serve as a platform for the SAP NetWeaver BW on HANA community, where all customers, prospect and partners can actively engage, ask questions, answer questions and provide feedback and comments.
For introduction read the blog from Scott Shepard. Skip to Content. Ensure that for parallelization the selections are mutually exclusive. The system executes the initial upload and, if necessary, a data transfer for example, in the Persistent Staging Area, InfoCube. In order that no event handlers are left without a SAP BW upload between the initial upload and the delta upload, you should switch to the delta upload at an upload-free time or, if necessary, manually report the event for the SAP BW upload, to ensure that the system carries out a delta upload for these event handlers.
Jay Roble. Any information would be appreacited Thanks Jay.
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