One scheme may have a field that doesn't exist in another scheme, or it may have a field that is split into two different fields in another scheme; this is why you often lose data when mapping from a complex scheme to a more simple one.
This is why you often loose data when mapping from a complex scheme to a more simple one. One scheme may have a field that is split into two different fields in another scheme.
One scheme may have a field that is split into two different fields in another scheme. This is why you often loose data when mapping from a complex scheme to a more simple one.
One scheme may have a field that is split into two different fields in another scheme. This is why you often loose data when mapping from a complex scheme to a more simple one.