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The reason to use multiple row fetch versus single row fetch, is
to limit the /number of trips/ between the program and the database.
The smallest ratio for the number of trips to the number of rows
retrieved would typically provide the best performance for the
program, with regard to its database access processing.
For example, an analogy... One could remove separately each box
of canned food from a pallet rather than removing separately each
can of food from within each box on the pallet. Using the latter
method would, except for when there is only one can per box, require
more trips than when using the former method. As the number of cans
per box increases, so too would the impact of the trips as measured
in percentage of the overall work, to complete the task of removing
all of the cans individually from the pallet.
Regards, Chuck
Marc Couture wrote:
And what the reason to fetch multiple records at the same time?
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