work process

Former Member — Sat, 29 Mar 2008 18:29:52 GMT

can anyone please explain what work process means? what does it do actually?

thanks

ankita

Re: work process

Former Member — Sat, 29 Mar 2008 18:59:09 GMT

HAI

ANKITHA GOSH,

Work processes are components of ABAP Application servers.Work process execute the individual dialog steps of ABAP application programs.

Work process contains three important components.

They are

1. Screen Processor

2.ABAP Processor

3.Database Interface

1. Screen Processor:

It executes Screen flow logic via dispatcher.

It takes over the responsibility for communication between

the work process and sap gui.

2. ABAP Processor

It executes the processing logic of application program.

It communicates with the database Interface.

3. Database Interface

It creates and destroy the link between work process and

database.

It provides access to ABAP Programs and ABAP Dictionary

It manages the buffer administration on application server.

It control transatcions using COMMIT and rollback.

There are 5 types of work processes.

1.Dialog Work Process

Dialog work processes deal with requests from an active

user to execute dialog steps.

2.Update Work Process

It execute database update requests.

Update requests are part of an SAP LUW that bundle the

database operations resulting from the dialog in a database

LUW for processing in the background.

3.Background Work Process

Background work processes process programs that can be

executed without user interaction .

4.Enqueue Work Process

It manages lock tables in the shared memory area.

This mechanism is used to prevent the concurrent access

of same data.

A single enqueue work process is sufficient to perform the

required tasks.

5. Spool Work Process

It is used to perform print jobs.

Each ABAP application server may contain only one spool

work process.

if it useful, reward points.

Thank you

G.V.K.Prasad

Re: work process

Former Member — Sun, 30 Mar 2008 13:43:47 GMT

got my answer.

thanks

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