How many processing tiers do you usually find in a native SAP HANA application stack?

In a native SAP HANA application stack, typically, there are two processing tiers: the database tier and the application logic tier.

The database tier is where the SAP HANA database resides, utilizing its in-memory capabilities to manage and process data efficiently. This tier is responsible for raw data storage, data modeling, and various database operations such as querying and data manipulation.

The application logic tier hosts the business logic of the application. It handles user requests, processes data interactively, and communicates with the database tier to store or retrieve data. This separation allows for improved performance and scalability since the application logic can be developed independently of the data storage and management functionalities.

Having these two distinct tiers supports a clear architecture that enhances development efficiency and simplifies maintenance. In essence, the design ensures that processing and data management are handled optimally, making the system perform better under various workloads.