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Describe briefly models which define the operations on classes.
The three models which are used to define operations on classes are as:
Object Model = data dictionary + Object model diagram
Dynamic Model = global event flow diagram + State diagrams
Functional Model = constraints + Data flow diagrams.
#explain five disadvantages of a dbms..
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What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
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what is RDBMS? how it works? good example.
Question 1 What are the advantages of DBMS approach in managing data? Question 2 What are the services provided by a database system Question 3 List and briefly describe
various techniques of hashing?
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