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What is conceptual model ? A conceptual model is a independent of both hardware and software.
Explain the use of constraints in functional model with suitable example. A constraint shows relationship between two objects at same time, or among various values of the sam
Explain the Weak Entity Set An Entity set which does not have sufficient attribute to make a primay key is known as weak entity set. For instance, dependents of an employee in
I need help for my Uni assignments
Describe the storage structure of indexed sequential files and their access method. Ans: Index offers a lookup capability to rapidly reach the vicinity of the desired record.
what characterizes the levels in RAID technology
What is inheritance? Inheritance is an object orientation concept that allows reusability of code / design. Basic sense of inheritance is that if one class is predefined than a
What are the two approaches to store relations in distributed database? a) Replication b) Fragmentation
what is multivalued dependency
Do you have experts of the dbms
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