SAP ENQUEUE ABEXA documentation, setup help and example usage

ARTIClE

Locking and Unlocking
This example demonstrates the setting up and releasing of SAP locks.

ABAP_SOURCE_CODE
ABAP_EXEC

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Using the GUI status function codes ENQUEUE and DEQUEUE , the specified fields in the table SFLIGHT can be locked and unlocked. To do this, the lock object EDEMOFLHT is used in conjunction with the relevant function modules ENQUEUE_EDEMOFLHT and DEQUEUE_EDEMOFLHT .
Using the function code SELECT , access to the specified fields is still possible. The function code SM12 calls the transaction SM12 to display the lock entry in the central lock table.
After a user has successfully locked a data record, the same data record cannot be locked again by a different user. However, all users can access the locked data records using the Open SQL statement, assuming the program has not already checked the locks using ENQUEUE_EDEMOFLHT .