Mapping is a process of converting one level to another level. In this process,the data
at one level is related to the data and another level.
The conceptual/internal mapping defines the correspondence between the conceptual view and
stored database. It specifies how conceptual records and fields are represented at the internal level
if the structure of stored database is changed, then the conceptual mapping must be changed
accordingly so that the conceptual schema can remain consistent. It is the responsibility
of DBA to manage such change.
Tweet
Share this post to
0 comments:
Post a Comment