SAP ABAP PROCESSING BLOCKS

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Reporting Events
The following are event key words for reporting events:

INITIALIZATION,

START-OF-SELECTION,

GET node (obsolete, for logical databases only),

END-OF-SELECTION (obsolete, for logical databases only).
Reporting events occur in a predefined order and only in executable programs started with SUBMIT. In general, every executable program is started implicitly using SUBMIT. Only starts with regular transaction codes (no reporting transactions) or external calls of their procedures are not connected to a SUBMIT statement.
When an executable program is connected to a logical database, the assigned subroutine is executed in the database program before a reporting event is raised.
BEGIN_SECTION SAP_INTERNAL_HINT
The event keywords for reporting events can also be listed. in most of the other program types but are never triggered.
END_SECTION SAP_INTERNAL_HINT