Get Example source ABAP code based on a different SAP table
SAP Locks, Set and Release This example demonstrates how SAP locks are set and released (enqueue and dequeued).
ABAP_SOURCE_CODE ABAP_EXEC
ABAP_DESCRIPTION The function codes ENQUEUE and DEQUEUE of the GUI status can be used to lock and unlock the specified fields of the table SFLIGHT. This is done using the lock object EDEMOFLHT is used using the corresponding function modules ENQUEUE_EDEMOFLHT and DEQUEUE_EDEMOFLHT. The return code sy-subrc and the system fields for messages are preserved in dedicated structures. These contain important information returned by the function modules and can be used for analyzing lock problems. Furthermore, the function code SELECT enables the specified fields to be accessed and the function code SM12 calls the transaction SM12 to display the lock entries in the central lock table. Once the data records have been locked by a user, no other user can lock the same records again. All users can, however, access the locked data records using AB-SQL statements, assuming the program did not already check the locks using ENQUEUE_EDEMOFLHT.
