ABAP Keyword Documentation → ABAP − Reference → Processing External Data → ABAP Database Access → Data Consistency → SAP LUW
SET UPDATE TASK LOCAL
Other versions: 7.31 | 7.40 | 7.54
Syntax
SET UPDATE TASK LOCAL.
Effect
This statement switches the local update on. In the local update, high priority update function modules - registered during the current
SAP LUW
using CALL FUNCTION ... IN UPDATE TASK - are registered in the
ABAP memory instead of
the VB... database tables. In addition, it specifies that the current work process and not the update work process run these modules during the current
database LUW, when the
statement COMMIT WORK is executed. This statement has no effect on low-priority update function modules.
At the beginning of every SAP LUW, the local update function is deactivated. If required, it must be activated again before the first update function module is registered.
The local update is executed in a separate internal session of the current ABAP session and not in a dedicated update session.
System Fields
| sy-subrc | Meaning |
|---|---|
| 0 | The local update function is activated. |
| 1 | The local update function has not been activated, because the program has already registered at least one update function module for the normal updating procedure in the current SAP LUW. |
Notes
-
The local update function performs a synchronous update after the statement
COMMIT WORK, independently of the additionAND WAIT. - If a database rollback occurs during the local update, all previous change requests are affected.
-
The profile parameter
abap/force_local_update_task can be used to set the local update centrally
for an AS ABAP. This should be done with great care, however, and while respecting all updates that
can take place in the system. If not, the behavior of programs not subject to local updates may change. The performance of database locks may also deteriorate.
Example
Activates local update for the subsequent registrations of
update function
modules using the statement CALL FUNCTION IN UPDATE TASK.
SET UPDATE TASK LOCAL.
...
DATA(values) = VALUE demo_update_tab(
( id = 'Y' col1 = 1111 col2 = 2111 col3 = 3111 col4 = 4111 ) ).
CALL FUNCTION 'DEMO_UPDATE_UPDATE' IN UPDATE TASK
EXPORTING
values = values.
...
COMMIT WORK.