Locking Mechanism and update workprocess

[former_member751591]

Hello there i am beginner learning SAP . Can somebody explain how the below mechanism work step by step in ABAP AS Mulitiple instance architecture. How will update work process update database objects in below case.

[former_member751591]

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[drayton_al]

Lock mechanism places a lock on the records if a user is modifying the same . so that other users for other Apps servers cannot use that same record. After the user is done and cofirms the data, the Update work process update the database records.

[Isaias_SAP]

Hello Phanendra,

On a high level, when an ABAP application wants to change something on the database, it first creates an Enqueue lock, so no other user / process can change the same data.

Then, the application creates an update request, which will contain the changes.

At a later point (normally almost immediately), the system triggers the processing of the update request, which performs the changes on the database tables and commits them.

One the update is finished, the corresponding Enqueue locks are released.

Regards,

Isaías

[ruchitkhushu]

Can you please tell specifically which part isn't clear ? That would be helpful.

Regards.

Ruchit