What is program roll area and system paging area?

hello sir,
i am new to abap, plz give me the answer for the following question,
1.what is program roll area and system paging area?
2.from these two, system allocate memory from which one of the memory?

check this link.
http://help.sap.com/saphelp_nw2004s/helpdata/en/02/96274f538111d1891b0000e8322f96/content.htm
http://help.sap.com/saphelp_nw2004s/helpdata/en/34/d9c8b9c23c11d188b40000e83539c3/content.htm
http://help.sap.com/saphelp_47x200/helpdata/en/34/d9c8b6c23c11d188b40000e83539c3/frameset.htm
Message was edited by: kishan negi

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hi
SAP Roll Area
DefinitionThe roll area is a memory area with a set (configurable) size that belongs to a work process. It is located in the heap of the virtual address space of the work process.
UseWhen the context of a work process changes, the data is copied from the roll area to a common resource called the roll file. To prevent repeated copying, another roll buffer is located in between that is part of the shared memory.
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Integration
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http://help.sap.com/saphelp_nw2004s/helpdata/en/02/962831538111d1891b0000e8322f96/content.htm

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Hi,
Can someone explain me these Two Term in simple english.
1)Roll Area
2)Work Area
How aou distinguish b/w them.
Thanks.
Samir.

Hi Samir,
Welcome to SDN.
1. The first & main difference is
 WORK AREA : Refers when we talk about ABAP Programming
 ROLL AREA : Refers when we talk about R/3 Instance
 (on server)
2. Work Area :
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 Loop at ITAB.
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 SAP Gui <----
> R/3 Server
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 the above two.
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Regards,
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Message was edited by: Amit Mittal

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What is program roll area and system paging area?

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