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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 and data warehouse? Give 4 differences at least.
4. Discus the major difference between relational database and object oriented database?
5. Text databases may be highly unstructured, semi structured and well structured. Give an example for each.
6. How can data mining affect our privacy? Give examples to illustrate your answer.
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.
For the relations R and S given below: R S A B C 1 4 7 2 5 8 3 6 9
What is the meaning of Recovery? In deferred update methods, if a transaction fails before arriving its commit point, it will not have altered the database in any way, so UNDO
i want help to complete my task
Why is database redesign necessary? Database redesign is essential for two reasons. First, redesign is essential both to fix mistakes made during the initial database design. S
Explain Interblock gap? Interblock Gap - A track of a disk is separated into equal-sized disk blocks. Blocks are separated through fixed-size gaps, called as interblock gaps th
explain the level architectures of the database management system
What is a PROJECT operation? The project operation is a unary operation that returns its argument relation with particular attributes left out. Projection is shown by pie (π).
Q. Why would you choose a database system instead of simply storing data in operating system file? Define at a base concept in details. Sol. Advantages of Database over Fil
what would go in order patient#, patient name, patien address, surgeon#, surgeon name, surgery date, surgery type, drug admin
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