What type of structure is created when using a table type to define one of its components?

In the context of data structures within SAP development, a table type is used to create a component that allows for multiple entries and effectively models a collection of data. When you define a component using a table type, you establish what is known as a deep structure.

A deep structure is characterized by its ability to contain references to other structured data types, such as nested structures or complex types, which can include multiple fields or even another table type. This means that the component can hold not just flat data entries, but also allow for complex, hierarchical relationships among the data stored within it.

This characteristic is important in scenarios where you need to represent a relational or more complex data model, particularly in instances such as representing master-detail relationships where the details (or line items) depend on a single master record.

In contrast, other types of structures, such as nested structures, are specific to containing another structure within it directly but do not inherently include the multi-entry aspect of a table type. Append structures are used to add fields to an existing structure without modifying the original structure, and flat structures typically hold simple, single-dimensional data without the additional layering of types or entries.

Thus, when using a table type to define a component, you create a deep structure that effectively