Restrict another transaction

Question

hi,
If 2 transactions give the same result,then if both the transactions are executed simultaneously,then how to stop other transaction to be executed and issue a messag saying other had executed first.
Thanks in advance.

Answer 1

Hi assr
Using the lock mechanism, you can recursively check whether the second transaction released the lock or not and ask the use for the action.
e.g.
DATA lv_stop_transaction TYPE flag .
DATA lv_answer TYPE char1 .
DO .
*-- Call lock module
*--If lock is active ask whether to wait or exit
*--You can use the FM "POPUP_TO_CONFIRM_WITH_MESSAGE"
  IF lv_answer = 'N' . "e.g. If user wants to exit
    lv_stop_transaction = 'X' .
    EXIT .
*---else .
  ELSE .
    CONTINUE .
  ENDIF .
ENDDO .
IF NOT lv_stop_transation IS INITIAL .
  LEAVE TRANSACTION .
ENDIF .
You can also put a time-out limit for the DO-ENDDO logic.
By the way, please reward points for the posts you find helpful and close the thread if your problem is solved.
Regards
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