This page provides some information to the OLAP engine and some other related topics like F4 help and the interface to the data base (also called DataManager). It should help to get a better understanding of the basic concepts and give you a guideline how to analyze problems in these areas.
OLAP Core / Calculation of Formulas, Exception Aggregation, Constant Selection, Virtual Key Figures, Formula Variables ...
BW OLAP Services
Database Interface / Star Schema, LISTCUBE, RSDRI_INFOPROV_READ, Compression
Multiprovider / Multiprovider, SPO, Pruning
HANA Provider / Composite Provider, advanced DSO, Open ODS view, ...
Virtual Providers / Based on Function Modules, Based on DTP for Direct Access
Transient Objects / Transient Providers and Queries, Transient Objects based on CDS Views
Inventory Providers / Cubes/ADSOs with non-cumulative Key Figures
BW running on HANA Database and SAP BW/4HANA
Data Modeling / Hana Optimized Cube, CompositeProvider, Datastore Object (Advanced), Open ODS View
OLAP Analytical Engine / Hana Pushdown of features like Exception Aggregation
MDX / MDX interface / MDX processor
OData / BW OData Queries
Other OT Topics
SAP Support Troubleshooting Guideline
Most popular consulting notes