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Explain Three-Schema Architecture of database
written 8.3 years ago by gravatar for meghalikalyankar meghalikalyankar • 2.3k modified 4.0 years ago by gravatar for binitamayekar binitamayekar ★ 6.7k
database management systems
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written 8.3 years ago by gravatar for meghalikalyankar meghalikalyankar • 2.3k

Three levels of database architecture:

Following are the three levels of database architecture,

  1. Physical Level

  2. Conceptual Level

  3. External Level

enter image description here

Fig: Three levels database architecture

In the above diagram,

  • It shows the architecture of DBMS.

  • Mapping is the process of transforming request response between various database levels of architecture.

  • Mapping is …

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