January 2019
Intermediate to advanced
286 pages
7h 41m
English
Content preview from Advanced MySQL 8
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Splitting the big DELETE or INSERT queries
There would be times when the cleaning of old data is a requirement from a business or data-retention perspective, and in those situations, it is always recommended to split them into multi-threaded so there is a smaller set of queries, rather than one big fat query. If the retention policy is well-built and maintained, then this situation may not exist at all. Or even if there is a batch process to perform these kinds of operations on a regular basis, such as daily, this also might cause an outage to your application.
For example, if a business wanted all of those 100K test accounts that are not being used in the production environment to be deleted, then, in that case, there are multiple options ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.