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Examples:-
Hierarchical Model: It tells data as and relationships by hierarchy of data values. Figure illustrates an example of hierarchical model. Now a day's these models are not used in commercial DBMS products.
Figure: An example of Network Model
Figure: An example of Hierarchical Model
WHAT IS SQL
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which component of DBMS can be embedded in a program? The data manipulation language (DML) is a component which is embedded in a program.
While using extract datasets it is required to have a special workarea for interface False. It is not required to have a special workarea for interface
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under what condition log based recovery is feasible?
#question.what is mapping constraints and types?.
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