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Distributed Database Systems, 1st Edition by Chhanda Ray
book

Distributed Database Systems, 1st Edition by Chhanda Ray

by Chhanda Ray
May 2024
Intermediate to advanced content levelIntermediate to advanced
325 pages
12h 2m
English
Pearson India
Content preview from Distributed Database Systems, 1st Edition by Chhanda Ray
206
Distributed Database Systems
Step 2: Apply reduction technique to q, which will produce a list of monorelation subqueries and
a sequence of irreducible subqueries q1 q2 . . . qn.
Step 3: Ignore all monorelation subqueries (since they are already processed by OVQPs at local
sites).
Step 4: for I 1 to n, repeat Step5 to Step8 [n is the total number of irreducible subqueries].
Step 5: Choose the irreducible subquery qi involving the smallest fragments.
Step 6: Determine the best strategy, pairs of (F, S ), for qi. [F represents a fragment and S represents
the processing sites.]
Step 7: For each pair (F, S), transfer the fragment ...
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Publisher Resources

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