What are the internal table events

Question

hi experts
can u help me for this

Answer 1

Hi ramesh,
There are basically internal table events are as below...
at first / endat
at last / endat
at new / endat
at end of / endat
sum
on change of / endon
Use the at first and at last statements to perform processing during the first or last loop pass of an internal table.
Use the at new and at end of statements to detect a change in a column from one loop pass to the next. These statements enable you to execute code at the beginning and end of a group of records.
Use the sum statement to calculate totals for the rows of a control level.
Another statement you can use to perform control break processing is on change of. It behaves in a manner similar to at new.
on change of differs from at new in the following respects:
It can be used in any loop construct, not just loop at. For example, it can be used within select and endselect, do and enddo, or while and endwhile, as well as inside get events.
A single on change of can be triggered by a change within one or more fields named after of and separated by or. These fields can be elementary fields or field strings. If you are within a loop, these fields do not have to belong to the loop.
When used within a loop, a change in a field to the left of the control level does not trigger a control break.
When used within a loop, fields to the right still contain their original values; they are not changed to contain zeros or asterisks.
You can use else between on change of and endon.
You can use it with loop at it where . . ..
You can use sum with on change of. It sums all numeric fields except the one(s) named after of.
Any values changed within on change of remain changed after endon. The contents of the header line are not restored as they are for at and endat.
<b>Reward Points if it useful....</b>
Thanks and Regards
Sreenivasa sharma k.