mappings

Why Do We Need Mapping Between Schema Levels In Three Schema Architecture?

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Why Do We Need Mapping Between Schema Levels In Three Schema Architecture? Mapping is used to transform the request and response between various database levels of architecture. Mapping is not good for small DBMS because it takes more time. In External / Conceptual mapping, it is necessary to transform the request from external level to

What Does Memory Address Mapping Explain?

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What Does Memory Address Mapping Explain? What does memory address mapping explain? Memory-Mapping Why do you need a memory address map? You can map file data into the process address space. You can also map processes to anonymous memory regions that may be shared by cooperating processes. Memory mapped files provide a mechanism for a