With HANA, SAP has developed a database that can process data much faster than conventional databases thanks to in-memory technology. In-memory technology no longer accesses hard disks for data retrieval, but keeps all data in memory. In this way, data can be analyzed and processed almost in real time - this speeds up business processes in the field of big data many times over. On the software side, SAP HANA uses a combination of column and row-oriented working methods. HANA was initially developed for business intelligence and business analytics applications and used in SAP Business Warehouse and Business Objects Strategic Workforce Planning. However, other SAP products and all SQL-based applications can also be operated with HANA.
"All problems solved" mentality:
Detailed breakdowns were seldom carried out on leisurely working databases with large amounts of data and problem cases have remained hidden
If dependencies have not been consistently taken into account in the existing ETL automation, it is advisable to re-automate the loading processes due to the greatly changed loading speed.