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Results tagged with performance
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user 73264
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.
2
votes
How to optimise MySQL query that uses dependent subquery
Instead of using a sub query you could use a LEFT JOIN.
That way you negate the need for a sub query which is being looked at for each image.
LEFT JOIN
seen
ON
seen.image_id = im …
- 21