SAP HANA Modeling Guidance
HANA Modeling Target: Minimize Data Transfers The main goal during modeling is to minimized Data transfers. This is possible true both internally, between the SAP HANA database views, and also between SAP HANA and the end user application. So for example, the end-user will never need to see 1 million rows of data. They would never be able to understand so much information or consume it in some meaningful way. So d ata should be aggregated and filtered to a manageable size before it leaves the data layer. When deciding upon the records that should be reported, the best practice approach is to think at a “set level” not a “record level” . A set of data can be aggregated by a region, a date, or some other group in order to minimize the amount of data passed between views. Read related post: SAP HANA Tables, Models and View Processing