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An evaluation of whether a system works well enough to be fit for purpose. Normally performance refers to the speed with which a system completes an operation or set of operations over time.
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Retrieving changed rows only from a table with 10^7 rows
I have a table with about 300 columns and about 107 rows and I have to retrieve changed rows only, ordered by time (not distinct, but changed). The result set may be limited to 100 rows as well.
I've …