ABAP Runtime Environment (BC-ABA)

In an ABAP program, a dynamic memory object is one whose memory consumption may increase or decrease during the time that the program is running.

Dynamic memory objects include the following types of objects:

• Internal tables, whose bodies may increase or decrease in size as table rows are added or deleted
• ABAP strings or xstrings, in which the length of the string text may increase or decrease within the limits defined for strings
• Class objects, which may appear or disappear as instances of a class are created or destroyed
• Anonymous data objects, which may be created or released during program execution
• Boxed components

All of these objects are examples of deep ABAP data objects, objects whose content is not the actual work data, but rather a reference to the actual content, or whose actual work data is addressed internally using references.