What is updated Function Module.
- 3 Answers
- 6248 Views
- IBM, Intelligroup, I also Faced
- E-Mail Answers
Answer Posted / aditi
It is basically used to bundle distributed updates within different programs spots, to one place (in FM).
Such FM would store all the UPDATE/INSERT/DELETE statements which otherwise you would write in some program place. Now when system reaches CALL FUNCTION 'XXX' IN UDPDATE TASK it doesn't go inside. Instead in registeres this XXX FM in VBLOG table (you can see update tasks in SM13) to be executed later. Now when in program it reaches COMMIT WORK statement, it looks into that table and calls each registered functions.
The aim is to either COMMIT all the changes at once, or ROLLBACK them all. This means that if inside one of any FM these statements are encountered system writes changes to DB permanently. Next it clears VBLOG table (so no FM are registered for change anymore) and continues the program.
This is the most common and safe way to make changes to DB within one [SAP LUW|http://help.sap.com/saphelp_46c/helpdata/en/41/7af4bfa79e11d1950f0000e82de14a/frameset.htm]. There is also other way of doing the same within distributed subroutines which are also described in this document.
But if you are asking yourself what is the reason for use of such bundling techniques. It is because [DB LUW|http://help.sap.com/saphelp_46c/helpdata/en/41/7af4bca79e11d1950f0000e82de14a/frameset.htm] differes from the SAP LUW. It is just a smaller part of the latter and is used to submit changes (permanently) in DB after each UPDATE/INSERT/DELETE. In case of later errors during DB update you could then no longer restore previous state of DB with ROLLBACK. That's why SAP created its own SAP LUW.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is an “on request field” statement?
what is code to upload cost centers through call trans. and procedure
How to create a button in selection screen ?
What are the update types possible?
How do you set up background jobs in sap? What are the steps? What are the event driven batch jobs?
What is the name of the system variable that holds the contents of the selected line in interactive reporting?
Can multiple abap systems connect to abap database?
While using extract datasets it is required to have a special workarea for interface. State true or false. : abap modularization
Explain the properties of selection screen?
How do you set up background jobs in sap?
8)when u create sales report what u can see in that report ? what rthose field names or data element names? 9)when u create purchase order details report what u can see in that report ?what rthose fieldnames or dataelements? 10)when u create material stock report in material master grouped by material type and plant what u can see in report ?what rthose field names or dataelement ? 11)when u create shipping forecast report what u can see in that report ?what rthose data elements or field names?
What is alv programming in abap?
What is off cycle payroll run
Difference between call by value and call by reference? : abap data dictionary
What is sap locking?
