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Data Replication
"If a relation R has its copies kept at two or more sites, then it is considered replicated".
But why do we replicate a relation?
There are several advantages and drawbacks of replication of relation
Consider the following database containing five transactions. Let min_sup = 60%. Mine all frequent itemsets using Apriori and FP-growth algorithm. Compare the efficiency of the t
These permit the user to unload a database or parts of a database and reload the data on the similar machine, or on another machine in a dissimilar location. This can be useful in
what is query processing ,query optimization and performance turring?
What are the two types of indices? The two types of indices are:- A) Dense index B) Sparse index
how to calculate frequency count of algorithm
Product adder required for Ecommerce website Project Description: Want a product adder for 500 products I have a magento website and need products pulled from site A to my si
A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.
Discuss the mechanism to read data from and write to a disk? Disk read/write heads are mechanisms in which read data from or write data to disk drives. The heads have gone by
What is bucket overflow and how bucket overflow is handled through Over Flow Chaining or Closed Hashing? Ans: Bucket: unit of storage holding records. Bucket is a disk block
Rules Of Data Normalisation Let us now summarise Normalisation with the help of various clean rules. The following are the necessary rules for the Normalisation process: 1.
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