topic Re: ABAP vs SAP memory in Application Development and Automation Discussions

ABAP vs SAP memory

Former Member — Mon, 14 May 2007 10:27:46 GMT

Hi Experts,

Can you please explain me the difference between SAP and ABAP memory with an example. Where exactly it is located...application layer, presentation layer or database layer...further if you can explain me about buffering also, that will be a great help to me.

Thanks and regards,

Raman.

Re: ABAP vs SAP memory

Former Member — Mon, 14 May 2007 10:30:09 GMT

SAP memory is a memory area to which all main sessions within a SAPgui have access. You can use SAP memory either to pass data from one program to another within a session, or to pass data from one session to another. Application programs that use SAP memory must do so using SPA/GPA parameters (also known as SET/GET parameters). These parameters can be set either for a particular user or for a particular program using the SET PARAMETER statement. Other ABAP programs can then retrieve the set parameters using the GET PARAMETER statement. The most frequent use of SPA/GPA parameters is to fill input fields on screens

ABAP memory is a memory area that all ABAP programs within the same internal session can access using the EXPORT and IMPORT statements. Data within this area remains intact during a whole sequence of program calls. To pass data

to a program which you are calling, the data needs to be placed in ABAP memory before the call is made. The internal session of the called program then replaces that of the calling program. The program called can then read from the ABAP memory. If control is then returned to the program which made the initial call, the same process operates in reverse.

http://www.sap-img.com/abap/difference-between-sap-and-abap-memory.htm

ABAP Memmory & SAP Memmory

http://www.sap-img.com/abap/difference-between-sap-and-abap-memory.htm

http://www.sap-img.com/abap/type-and-uses-of-lock-objects-in-sap.htm

Reward points if useful

Regards

Anji

Re: ABAP vs SAP memory

Former Member — Mon, 14 May 2007 10:30:33 GMT

there are number of threads related to abap & sap memory , buffering.

in search, type abap & sap memory u will get lot of threads.

After that also u r not clear means post ur query.

Re: ABAP vs SAP memory

Former Member — Mon, 14 May 2007 10:32:16 GMT

Hi Raman,

1. SAP memory is for cross-transaction Applications and ABAP/4 memory is transaction-specific.

2. The SAP memory, otherwise known as the global memory, is available to a user during the entire duration of a terminal session. Its contents are retained across transaction boundaries as well as external and internal sessions. The contents of the ABAP/4 memory are retained only during the lifetime of an external session. You can retain or pass data across internal sessions.

3. The SET PARAMETER and GET PARAMETER statements allow you to write to, or read from, the SAP memory. The EXPORT TO MEMORY and IMPORT FROM MEMORY statements allow you to write data to, or read data from, the ABAP memory.

External session: - when user logs on to R/3 system, the system creates a new terminal session called external session. E.g. System  Create Session.

Internal session: - created by calling a transaction (with CALL TRANSACTION), a dialog module (with CALL DIALOG) or a report (with SUBMIT or RETURN).

For External Sessions, Internal Sessions are available.

SAP Memory is a global memory area which all sessions within a

SAPgui have access to. This allows for passing data between

sessions. The SET PARAMETER ID and GET PARAMETER ID statements are

used to manipulate the SAP Memory.

SET PARAMETER ID 'MAT' field p_matnr.

GET PARAMETER ID 'MAT' field p_matnr.

ABAP Memory is a memory area which all programs in the call stack within the same internal session can access. The EXPORT and IMPORT

statements are used here.

export p_matnr = p_matnr to memory id 'ZTESTMAT'.

import p_matnr = p_matnr from memory id 'ZTESTMAT'.

In short

<b>ABAP memory -

> Memory related to that particular session

SAP memory -

> memory related to all sessions</b>

ABAP Memmory & SAP Memmory

http://www.sap-img.com/abap/difference-between-sap-and-abap-memory.htm

http://www.sap-img.com/abap/type-and-uses-of-lock-objects-in-sap.htm

Set

http://www.geocities.com/SiliconValley/Campus/6345/set_para.htm

GET

http://www.geocities.com/SiliconValley/Campus/6345/get_para.htm

EXPORT

http://www.geocities.com/SiliconValley/Campus/6345/export01.htm

Other Imp Help

http://www.geocities.com/SiliconValley/Campus/6345/abapindx.htm

Regards,

Younus

<b>Reward Helpful Answers!!!!!</b>

Re: ABAP vs SAP memory

Former Member — Mon, 14 May 2007 10:33:22 GMT

hi,

A simple example of ABAP memory is using the EXPORT/IMPORT statements.

Here in this program, I get the data, export it to memory,

clear out the internal table in my progam, then reimport the data into it and write out the data.

You probably wounldn't do this in a normal program,

but this is how you can pass data from program a to program b when A Submits program B.

report zxy_0002 .

data: it001 type table of t001 with header line.

select * into table it001 from t001.

export it001 = it001 to memory id 'ZXY_TEST'.

clear it001. refresh it001.

import it001 = it001 from memory id 'ZXY_TEST'.

loop at it001.

write:/ it001-bukrs, it001-butxt.

endloop.

SAP Memory

SAP memory is a memory area to which all main sessions within a SAPgui have access.

You can use SAP memory either to pass data from one program to another within a session,

or to pass data from one session to another.

Application programs that use SAP memory must do so using SPA/GPA parameters (also known as SET/GET parameters).

These parameters can be set either for a particular user

or for a particular program using the SET PARAMETER statement.

Other ABAP programs can then retrieve the set parameters using the GET PARAMETER statement.

The most frequent use of SPA/GPA parameters is to fill input fields on screens

ABAP/4 Memory

ABAP memory is a memory area that all ABAP programs within the same internal session can access

using the EXPORT and IMPORT statements.

Data within this area remains intact during a whole sequence of program calls. To pass data

to a program which you are calling,

the data needs to be placed in ABAP memory before the call is made.

The internal session of the called program then replaces that of the calling program.

The program called can then read from the ABAP memory.

If control is then returned to the program which made the initial call, the same process operates in reverse.

SAP memory

The SAP memory, otherwise known as the global memory,

is available to a user during the entire duration of a terminal session.

Its contents are retained across transaction boundaries as well as external and internal sessions.

The SET PARAMETER and GET PARAMETER statements allow you to write to, or read from, the SAP memory.

ABAP/4 memory

The contents of the ABAP/4 memory are retained only during the lifetime of an external session

(see also Organization of Modularization Units).

You can retain or pass data across internal sessions.

The EXPORT TO MEMORY and IMPORT FROM MEMORY statements allow you to write data to, or read data from, the ABAP memory.

Rgds

Reshma

Re: ABAP vs SAP memory

Former Member — Mon, 14 May 2007 10:35:28 GMT

Hi Raman,

1. SAP memory is for cross-transaction Applications and ABAP/4 memory is transaction-specific.

External session: - when user logs on to R/3 system, the system creates a new terminal session called external session. E.g. System  Create Session.

Internal session: - created by calling a transaction (with CALL TRANSACTION), a dialog module (with CALL DIALOG) or a report (with SUBMIT or RETURN).

For External Sessions, Internal Sessions are available.

SAP Memory

The SAP memory, otherwise known as the global memory, is available to a user during the entire duration of a terminal session. Its contents are retained across transaction boundaries as well as external and internal sessions. The SET PARAMETER and GET PARAMETER statements allow you to write to, or read from, the SAP memory.

ABAP/4 Memory

The contents of the ABAP/4 memory are retained only during the lifetime of an external session (see also Organization of Modularization Units). You can retain or pass data across internal sessions. The EXPORT TO MEMORY and IMPORT FROM MEMORY statements allow you to write data to, or read data from, the ABAP memory.

ABAP Memmory & SAP Memmory

http://www.sap-img.com/abap/difference-between-sap-and-abap-memory.htm

http://www.sap-img.com/abap/type-and-uses-of-lock-objects-in-sap.htm

Reward points if helpful.

Regards,

Hemant

Re: ABAP vs SAP memory

Former Member — Mon, 14 May 2007 11:13:14 GMT

HI,

SAP memory is Global Memory

ABAP memory is local memory.

Thanks

P.SRIKANTH

Re: ABAP vs SAP memory

Former Member — Mon, 14 May 2007 11:19:59 GMT

Hii raman

SAP Memory

ABAP/4 Memory

SAP memory

ABAP/4 memory

vikaas