ABAP DATA STRUC Statement syntax, information and example SAP source code

DATA - BEGIN OF

Short Reference

ABAP Syntax_4 DATA BEGIN OF struc
[READ-ONLY] .
...
DATA comp ... [ BOXED ]
INCLUDE TYPE|STRUCTURE ...
...
DATA END OF struc.

What does it do? Declaration of a new
structure struc . This starts with a DATA statement with the addition BEGIN OF and must end with a DATA statement with the addition END OF .
The following can be included between these DATA statements:
Any DATA statements, in particular further closed structures.

INCLUDE TYPE and INCLUDE STRUCTURE statements
The meaning of these statements is the same as in the definition of structured data types in the section TYPES -
BEGIN OF , but here it is used to generate a bound structured data type. No structure can be created without at least one component.
A component of type struc cannot be declared by referencing struc itself. If the name struc is specified after
LIKE in the declaration of a component, the next object of this name is searched for in a higher visibility area , and used if found. If a more global object of this name does not exist, a syntax error occurs.
Wenn die Struktur struc im Deklarationsteil einer Klasse als
Attribut der Klasse deklariert wird, kann eine Unterstruktur mit dem
Zusatz BOXED als
statische Box deklariert
werden.

Latest notes: The addition READ-ONLY can only be used for whole structures and not for individual structure components comp .

A structure called text cannot have any components with three-character names, since these are reserved for addressing text symbols . It is best never to call a structure text and avoid any conflicts with text symbols.

The BOXED addition cannot be specified between DATA BEGIN OF and DATA END OF when declaring components. Static boxes in structures can only be defined with TYPES .

The value operator VALUE can be used to construct the content of structures.

In an obsolete variant , text field literals or the constant space can be specified between BEGIN OF and END OF as anonymous components.

The use of the addition OCCURS
for defining standard tables with structured row types is obsolete.

Example ABAP Coding In this example, a structure spfli_struc is declared with an elementary component index and a substructure spfli_wa . The SELECT loop shows a possible use of the nested structure.
DATA: BEGIN OF spfli_struc,
index TYPE i,
spfli_wa TYPE spfli,
END OF spfli_struc.

SELECT *
FROM spfli
INTO spfli_struc-spfli_wa.
spfli_struc-index = spfli_struc-index + 1.
cl_demo_output=>next_section( |{ spfli_struc-index }| ).
cl_demo_output=>write_data( spfli_struc-spfli_wa ).
ENDSELECT.
cl_demo_output=>display( ).