May 2024
Intermediate to advanced
325 pages
12h 2m
English
Content preview from Distributed Database Systems, 1st Edition by Chhanda Ray
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Distributed Query Processing
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operation to the site of the other relation. There the two relations are joined locally, and the result-
ing relation is sent to the chosen result site. If the sum of the costs of the execution strategies S1 and
S2 and the cost of local join processing is less than the cost of S, then S is replaced by the schedule
of S1 and S2. This process is continued recursively until no more benefi cial strategy is obtained. It is
to be noted that if an n-way join operation is involved in the given query, then S will be divided
into n subschedules instead of two.
The main disadvantage of this algorithm is that it involves ...
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