Answer by David Spillett for Delete millions of rows, fast
As mustaccio states, partitioning the data may help, though that might not be practical as a quick solution and you'd still have to optimise such statements a bit.mysql is said to be particularly...
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I currently have a database with the following structure:id->varchar(9)time->datetimeval01 - val20->int(11)val21 - val40->tinyint(1)id and time are the primary key.also I defined an index...
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