What is shared memory in SAP (BC-ABA - ABAP Runtime Environment)?

SAP Term: shared memory

• Component: BC-ABA

• Component Name: ABAP Runtime Environment

• Description: Memory area on an application server in which the ABAP runtime environment stores programs, program data, buffers, and so on. ABAP programs can access either data clusters in the cross-transaction application buffer, or shared objects in the shared object memory of the shared memory of the current application server. The maximum amount of the shared memory that can be used by the different users is determined statically by the profile parameters. The transaction ST02 SAP Memory Management displays the current assignment of the shared memory and the corresponding profile parameters.

Smart SAP Assistant

• Key Concepts: 
  Shared memory is a type of memory that is accessible to multiple processes running on a computer. It is used to store data that needs to be shared between processes, such as variables, data structures, and other information. In the SAP system, shared memory is used by the ABAP Runtime Environment (BC-ABA) to store and access data that needs to be shared between different programs. 
  
  How to use it: 
  Shared memory can be used in the SAP system by creating a shared memory segment. This segment can then be accessed by multiple programs running on the same computer. The data stored in the segment can be accessed and modified by any of the programs that have access to it. 
  
  Tips & Tricks: 
  When using shared memory in the SAP system, it is important to ensure that all programs accessing the segment are using the same version of the data. This will help prevent any conflicts or errors when accessing or modifying the data. Additionally, it is important to ensure that all programs accessing the segment are using the same security settings, as this will help protect the data from unauthorized access. 
  
  Related Information: 
  For more information about using shared memory in the SAP system, please refer to the official SAP documentation on ABAP Runtime Environment (BC-ABA). Additionally, there are many online resources available that provide tutorials and tips for using shared memory in SAP systems.