Hai.
check this.
Table fields are defined in SAP R/3 by data elements and
domains. This is a key difference between SAP R/3 and many
other systems.
In other systems, a field is defined only by its type
(i.e., character, numeric) and length. These characteristics
are assigned directly to each field.
In SAP R/3, a field is defined by being assigned to a data
element, which is in turn assigned to a domain. These
assignments determine the field’s type and length in
addition to other characteristics.
SAP R/3 refers to this method of field definition as the
Two-Level Domain Concept
check the links also.
http://www.learnsap.com/abap.html
http://petra-veith.com/13939/13885.html?sessionidkey=sessionidval
regards.
B.Sowjanya.
Bluesky
