START-OF-SELECTION is a keyword used in SAP ABAP programming.This tutorial covers its introduction & syntax details.
This is an event key word.
the first logical database table access, it introduces any initial
processing to be executed prior to the block specified under the next
event key word
The REPORT statement automatically starts
the START-OF-SELECTION processing. Any processing between the REPORT
statement and the subsequent event key word is executed at
Immediately after, the processing block introduced by an explicit START-OF-SELECTION is executed.