C_BW4H_2404 SAP Certified Associate - Data Engineer - Data Fabric Questions and Answers

•C. SAP ABAP Connection: This is what you need to use to combine data from a non-sap system and an InfoCube of your SAP BW powered by SAP HANA system using SAP Data Warehouse Cloud. You can use an SAP ABAP connection to connect to your SAP BW system and access the InfoCube data as a remote table. You can then join this remote table with the data from the non-sap system that you have already loaded into SAP Data Warehouse Cloud using a graphical view12.

References:

•1 https://help.sap.com/doc/00f68c2e08b941f081002fd3691d86a7/release/en-US/0c9d6f0a6c4a4b8e8b3f7e5c0a3d6f9d.html

•2 https://help.sap.com/doc/00f68c2e08b941f081002fd3691d86a7/release/en-US/5c9a6c8b6c4a4b8e8b3f7e5c0a3d6f9d.html

•A. Use fewer drill-down characteristics in the initial view: This can improve the query performance by reducing the amount of data that needs to be transferred and displayed at the start of the query execution. The user can drill down to more details later if needed1.

•D. Use mandatory characteristic value variables: This can improve the query performance by restricting the data selection to a smaller set of values that are relevant for the user. The user can also change the variable values later if needed1.

•E. Use include functions in the restricted key figures: This can improve the query performance by avoiding unnecessary calculations and aggregations that are done when using exclude functions. Include functions are also more efficient than selections or restricted key figures when filtering data1.

References:

•2 https://blogs.sap.com/2015/04/20/query-performance-optimisation-tips-in-bw-73/

•1 https://blogs.sap.com/2022/02/02/query-performance-optimization-in-bw-few-tips/

•3 https://help.sap.com/doc/00f68c2e08b941f081002fd3691d86a7/2022.12/en-us/0471d0ecea4e4677ba29d9ac1496c24c.html

•4 https://blogs.sap.com/2021/06/02/sap-bw-4hana-performance-optimization-part-i/

SAP S/4HANA embedded analytics uses ABAP CDS view based virtual data model to provide real-time access to the transactional data without data replication. It is a collection of SAP Fiori tiles that enable real-time operational reporting. SAP S/4HANA embedded analytics comes with a lot of predefined analytical apps based on Fiori and on SAP Analytics Cloud for various functional areas. The main user types addressed by SAP S/4HANA embedded analytics are business users and analytics specialists.

SAP Data Warehouse Cloud is a cloud-based data service that enables business users to create agilemodels from different sources and access data in real time. Business users can use the graphical user interface or the SQL editor to create data models, join data from various sources, and enrich data with business semantics. Business users can also use SAP Analytics Cloud to visualize and analyze data from SAP Data Warehouse Cloud. SAP Data Warehouse Cloud supports business users by providing self-service capabilities, pre-built business content, and flexible consumption options. References: 123

•D. Flexible Enterprise Data Warehouse Core layer: This is the layer of the layered scalable architecture (LSA++) of SAP BW/4HANA that is designed as the main storage for harmonized consistent data. The Flexible Enterprise Data Warehouse Core layer contains the Corporate Memory and the Quality & Harmonization layers, which are used to store and harmonize data from different sources and systems. The data in this layer is modeled using DataStore objects (advanced) and InfoObjects, and can be accessed by different data marts for reporting and analysis purposes12.

References:

•1 https://help.sap.com/doc/saphelp_nw75/7.5.5/en-US/4a/124597ca771b41e10000000a421937/content.htm

•2 https://help.sap.com/doc/r/dd104a87ab9249968e6279e61378ff66/11.0.8/en-US/0062afefa6db41eaa9460afef1894beb.html

•Run the program RODPS_OS_EXPOSE in SAP ERP for the Data-Source: This program can enable a generic DataSource in SAP ERP to be used as an ODP_SAP DataSource in SAP BW/4HANA by exposing it to the ODP framework. This allows the data to be transferred via RFC or HTTP calls without using a PSA layer12.

References:

•1 https://blogs.sap.com/2020/12/25/operational-data-provisioning-simplified/

•2 https://help.sap.com/docs/SAP_BW4HANA/107a6e8a38b74ede94c833ca3b7b6f51/c6afacb707764885a6fb62f511c24f34.html