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What does authentication refer?
Authentication refers to the task of verifying the uniqueness of a person.
What type of view of total database content? Data base content Conceptual view of total database contain.
What is meant by normalization of data? It is a process of examining the given relation schemas based on their Functional Dependencies (FDs) and primary key to achieve the prop
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
What are multiple inheritances? Multiple inheritances allow a class to inherit variables and methods from many super classes.
What is a recovery scheme? An integral part of a database system is a recovery scheme that can restore the database to the reliable state that existed before the failure.
List and explain the memory constructs of the Oracle 12c databases?
Differance between internal and external schema? Internal and external schema: Internal Schema • Describes the physical storage structure • Uses a physical data model External
What is the use of group by clause? Group by clause is used to apply aggregate functions to a set of tuples. The attributes given in the group by clause are used to
What are the three data anomalies that are similarly to take place as a result of data redundancy? Can data redundancy be completely eliminated in database approach? Why or why n
1.Why we need data mining? Give an example to illustrate your answer. 2. Why data mining is considered as "misleading name"? 3. Distinguish the difference between database an
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