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Computer Science 14 Online
OpenStudy (anonymous):

What are the three levels of DBMS Architecture..?? Plz help me in detail..

OpenStudy (anonymous):

External level Conceptual level Internal level

OpenStudy (anonymous):

Can u plz explain them in detail..!!

OpenStudy (anonymous):

Internal level describe how data is internally store in memory. External level is a abstract representation of data and based on views.e.g in a company employees ,manager have different views of database according to access authorities that they have. Conceptual level is a logical representation of database,what is stored and relationship among them . Conceptual level is used by DBA to control entire database.

OpenStudy (anonymous):

Thanks alott :)

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