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oliviaprejean18
27.03.2020 •
Computers and Technology
If relation R and relation S are both 32 pages and round-robin partition over 2 machines with 4 buffer pages each, what is the network cost (number of bytes sent over the network by any machine) for performing a sort-merge join in the worst case
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Ответ:
224
Explanation:
There's need for us to read the data from disk after which we now stream the data to the appropriate machine, the machine will then performs a sort-merge join between two 16page relations with 4 buffer pages.
So, this Will be = (1 + 6) * (16 + 16) = 224 I/Os per machine.
Ответ:
Right-click is to press and release the right mouse button . This displays a menu of actions that can be completed.