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Results tagged with performance
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user 22977
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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answers
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Agregation group by date or group, pair index, MySQL, slow response
I would like to get an advice from you about manipulating lot of data using SUM and GROUP BY two columns.
I have a table with 60M rows:
mysql> SELECT COUNT(*)
-> FROM adgroup_ad_diff;
+---------- …
- 31