ABAP Keyword Documentation → ABAP − Reference → Declarations → Declaration Statements → Data Types and Data Objects → Declaring Data Types → TYPES
TYPES - BEGIN OF struct_type
Other versions: 7.31 | 7.40 | 7.54
Syntax
TYPES BEGIN OF struc_type.
...
TYPES comp ...
TYPES comp TYPE struc_type BOXED.
INCLUDE TYPE|STRUCTURE ...
...
TYPES END OF struc_type.
Effect
Defines a structured type struc_type. This is introduced using a TYPES
statement with the addition BEGIN OF and must finish with a TYPES statement with the addition END OF.
The following can be included between these TYPES statements:
-
Any
TYPESstatements, in particular further closed structure definitions. -
The definition of static boxes using
BOXED. -
The statements
INCLUDE TYPEandINCLUDE STRUCTUREfor including components from other structures.
No structured types can be created that do not have at least one component.
The TYPES statements within the statements BEGIN OF
and END OF define the components of the structured type struc_type.
If a component is a structured type or if a new structured type is defined within a structure using
BEGIN OF and END OF, substructures are created. A structure with substructures is known as a nested structure.
A component of struc_type cannot be declared with reference to struc_type
itself. If the name struc_type is specified after TYPE in the declaration of a component, a search is performed for the next type with this name in a higher
visibility section, and used if found. If a more global type of this name does not exist, a syntax error occurs.
If a component is created as a table type, this type cannot be generic. The name of a component cannot be the reserved name of the
pseudo component table_line.
The statement INCLUDE defines
components of the structured type struc_type by using the components of a differently structured type or an existing structure at the same level.
The components of a structured type are divided using the name struc_type and the name of the component, and addressed using the structure component selector
(-).
Notes
-
The value
operator
VALUEcan be used to construct the content of structures. - A structure type is always fully specified. There is no generic structure type.
-
The statements for defining a structure type are usually summarized in a chained statement if possible.
Example
This example defines two structured types, street_type and address_type.
address_typecontains structured types as components. The definition of zipcode_type shows the access to substructures.
TYPES: BEGIN OF street_type,
name TYPE c LENGTH 40,
no TYPE c LENGTH 4,
END OF street_type.
TYPES: BEGIN OF address_type,
name TYPE c LENGTH 30,
street TYPE street_type,
BEGIN OF city,
zipcode TYPE n LENGTH 5,
name TYPE c LENGTH 40,
END OF city,
END OF address_type.
TYPES zipcode_type TYPE address_type-city-zipcode.