What are the areas when working with SAP systems?
Job Administration
The so-called SAP message server also belongs to the application layer. Only one instance of this server exists in the system. It mediates between the services and applications. In concrete terms, this means that the message server takes care of load balancing and determines, for example, on which application server a user logs on. Communication between application servers is also the domain of this message server.
The SAP Patch Manager offers two scenarios for inserting support packages or queues: Test Scenario Use the test scenario to determine whether conflicts or problems occur (e.g., unreleased repairs) or whether a modification match is necessary before the actual insertion. This scenario allows you to estimate and minimise the time and effort required to load support packages. In this scenario, no data is imported into the system, and you can continue to play in the event of an error without the error being corrected. You must select the test scenario explicitly. Note that once the test scenario has passed, the queue is empty and needs to be redefined. You must also explicitly choose the default scenario.
Flexible response to peak loads
The application layer is the central component of the SAP R/3 system. This layer is therefore also referred to by SAP as the actual base system. Within the layer there are application servers and a message server.
Do you know how to execute SQL commands on the tables in your SAP system? In the past, I asked myself the same question when I wanted to run prepared Querys on a table without converting it to a query over the SE16N with appropriate filters. After my research, I came across a simple way to have your SQL statements resolved transaction-based by an editor. This is the approach I'll describe to you in the following post. You may know the situation that you want to quickly put a short SQL statement on your SAP system without having to invest much effort in ABAP programming. You may not have the ABAP knowledge to extract data from a table, but you are familiar with SQL.
Some missing SAP basic functions in the standard are supplied by the PC application "Shortcut for SAP Systems".
SAP Security Check gives you an overview of the security situation of your SAP systems.
In order for your SAP system landscape to function permanently, it requires error-free installation and regular support.