DB/2-400
Troubleshooting and support in case of occurring problems
Due to the variety of tasks and the high complexity, I find my job extremely exciting. There are very many constellations of SAP systems and databases. Each installation, migration and update brings new aspects and challenges. It is precisely these challenges that are important to me, so that I can continue to learn and develop professionally on a daily basis.
This is where all the system's data resides. These are composed of the actual database and the DBMS, the "database management system". In earlier versions, the database here came from different manufacturers. For example, Microsoft SQL or Oracle. Since SAP HANA, a lot has changed for IT in this data layer. This is because the database comes from SAP itself and is automatically monitored by the system. There is more to this database layer than just the working data. Important elements such as the configuration tables and system data for control and application content are also stored here. This is the repository data used by applications.
Process transports between systems
The core of SAP Basis is the application layer with one or more application servers and a message server. The message server is used for communication between the application servers and transmits jobs between them. The application layer communicates with the database layer on the one hand and the presentation layer on the other. The applications on the application server request the required data from the database, process it and prepare it for the user, who displays it in his Graphical User Interface (GUI) via the presentation layer. Conversely, the application server passes information that the user enters via the GUI on to the database.
The website www.sap-corner.de offers many useful information about SAP basis.
SAP Basis is responsible for the smooth operation of programs in the SAP system. It acts like an operating system for R/3 and subsequent releases including S/4HANA. Each operating system provides an environment in which programs can run, such as MS Office on Microsoft Windows.
Tools such as "Shortcut for SAP Systems" complement missing functions in the SAP basis area.
At times, the user context may exceed the value of abap/heaplimit.
The freeware Scribble Papers is a "note box" in which all kinds of data can be stored. It takes in typed texts as well as graphics and entire documents. The data is then organised in folders and pages.
For this, the responsibility lies primarily with the CIO as the carrier and responsible of the IT strategy and the IT organisation.