Below is the example program on INSERT, UPDATE, DELETE examples using lock objects.
REPORT ZSAN_LOCKOBJECT.
DATA : IT_STUDENT TYPE TABLE OF ZSTUDENT,
WA_STUDENT TYPE ZSTUDENT.
WA_STUDENT-STUDENTID = '10'.
WA_STUDENT-NAME = 'SAPNuts'.
WA_STUDENT-LASTNAME = 'SAPNuts'.
WA_STUDENT-FATHER = 'SAP'.
WA_STUDENT-DOB = '25/09/2013'.
WA_STUDENT-GENDER = 'Male'.
WA_STUDENT-COURSE = 'SAP ABAP'.
WA_STUDENT-EMAIL = 'admin@sapnuts.com'.
WA_STUDENT-FEE = '0000'.
CALL FUNCTION 'ENQUEUE_EZSTUDENT' "add lock
EXPORTING
MODE_ZSTUDENT = 'E'
MANDT = SY-MANDT
STUDENTID = WA_STUDENT-STUDENTID.
IF SY-SUBRC = 0.
INSERT ZSTUDENT FROM WA_STUDENT. "insert record
IF SY-SUBRC = 0.
WRITE:/ 'Record inserted'.
ENDIF.
UPDATE ZSTUDENT FROM WA_STUDENT. "update record
IF SY-SUBRC = 0.
WRITE:/ 'Record updated'.
ENDIF.
DELETE ZSTUDENT FROM WA_STUDENT. "delete record
IF SY-SUBRC = 0.
WRITE:/ 'Record deleted'.
ENDIF.
ENDIF.
CALL FUNCTION 'DEQUEUE_EZSTUDENT' "release lock
EXPORTING
MODE_ZSTUDENT = 'E'
MANDT = SY-MANDT
STUDENTID = WA_STUDENT-STUDENTID.
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