SAP DDIC STRUCTURES



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ABAP_DDIC - Structures
A DDIC structure defines a structured type that contains other data types as components. These components can be:
Elementary data types
Reference types
Structured types
Table types
The name of a DDIC structure must follow naming rules for DDIC types and additionally some special naming rules for DDIC structures .
A DDIC structure that contains other structures as components is called a nested structure. Structured components are substructures and substructures can themselves be nested. A structure that contains a string type, reference type, or table type as a direct or nested component is a deep structure. A structure that contains only elementary data types (except string types) as direct or nested components is a flat structure. A program-internal object declared with reference to a structure is a data object structured correspondingly (or structure for short).
Technical properties of structures
Semantic properties of structures
A DDIC structure can be included in another structure as an