SAP DATA STORAGE GDL



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Data Storage
ABAP programs generally work with data imported from persistent memory media to the ABAP_ISESS of the current program execution. This data is then available to the program as transient data. For performance reasons, data can also be stored in the shared memory of the current ABAP_ASINSTANCE . This shared memory is available to all programs of an ABAP_ASINSTANCE . Access to data in the shared memory is faster than accessing data in persistent memory media by some magnitude.
Persistent Data Storage
Database Accesses
Client Handling
Using the Shared Memory
Using Shared Objects