Export/Import memory

sukhdev_kaloor · ‎2006 May 26

Hi,

what is the difference between Export/Import buffer

and Exp./Imp.SHM buffer

regards,

dev

raguraman_c · ‎2006 Jun 14

Hi Dev,

This will be useful.

Whenever a user session is created during any transactions, objects are created

in memory. If another user is accessing the same object another copy is

created in the memory - which means accessing objects is one copy per

user per session (Session Memory).

Until before SAP Application Server 6.40 these objects cannot accessed

by other sessions or other programs. The concept of Shared Memory

enables to access this memory if the object is not locked by that

session. SAP Provides a class for accessing shared memories -

CL_ABAP_MEMORY_AREA. Static methods are available in this class for

binding a session to the memory area.

What are the Advantages of Shared Memory?

~Data is kept only once in Memory.

~The Data will be in the memory as Memory Tables that reflect the

structure of Database table.

~Fast access at Main Memory Speed.

~Saves Memory (Saves Approximately 3MB Per user per Session.