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how can apply joins on table
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
Explain the challenges before an E-business management.
What are the properties of transaction? There are three properties of transactions :- A) Atomicity B) Consistency C) Isolation
Define the Attribute Inheritance The attributes of a higher level entity set are inherited through a lower level entity set made by specialization-generalization hierarchy. Nam
A student entity type has the following attributes,name..
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
Prove that a relation which is 4NF must be BCNF. Ans Let R be in 4NF. Suppose it is not in BCNF. Hence, there exists an FD X→Y in R such that x is not a super key. Although
Define average latency time. The average latency time of the disk is one-half the time for a full rotation of the disk.
The ER diagram clearly showing the additional tables you have implemented. SQL table creation scripts for the tables you have set up. SQL scripts showing the sample data you
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