In this blog, I would discuss how can we load data from HANA models/Database Procedure to BW DataSource based on Function Module.
Scenario 1 :
You have a HANA model which gives you every day snapshot of open order / delivered order in real time . You want to store the data somewhere to see trend over time. Reporting security is implemented in BW side and you want to reuse that .You also want to use Master Data / Text available in BW.
Scenario 2:
You have BW on HANA and HANA native in same database , and there is hybrid data model which uses data from both BW Schema and HANA native schema. If the tables are small , you might pull the data by some way and build your model in BW . However, if the tables are big and requirement is not straight forward, a calculation view can be handy and comes with great performance benefit by using Input Parameter. We can also model very complex requirement by using stored procedure or Script Based Calcuation view. But , for some reasons we want data to be persisted in BW , like business wants Key and Text side by side for variable help values which still does not work well in native HANA.