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What is Lock Objects in SAP ABAP

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What is Lock Objects in SAP ABAP
Stechies

Lock objects are function modules to avoid accessing data by two or more users. 

There are two types of lock objects are available, DEQUEE, ENQUEE.

or

Type of locks:

Exclusive Lock: The locked data can be read or processed by one user only.

Shared Lock: Several users can read the same data at the same time, but as soon as a user edits the data, a second user can no longer access this data.

Exclusive but not cumulative lock: Exclusive locks can be requested by the same transaction more than once and handled successively, but an exclusive but not cumulative lock can only be requested once by a given transaction. All other lock requests are rejected.


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