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Mapping Exists Quiz

A database management system are very complex

How many levels of abstraction in DBMS_____________.

Which are the three levels of abstraction____________.

How many types of data independence____________.

Which are the types of data independence__________.

Which is the transformation of requests and results between different levels of abstraction___________.

Which mapping exists between the conceptual and internal levels______________.

Which mapping exists between the external and conceptual levels_________________.

The related and interconnected software components of a DBMS are described by the

Which are the types of physical DBMS architecture can be split_____________.