January 2019
Intermediate to advanced
286 pages
7h 41m
English
Content preview from Advanced MySQL 8
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How to efficiently read MySQL query execution plans
When you run a query, MySQL query optimizer tries to design an optimal execution plan for the query. You can see the plan information by mentioning EXPLAIN before your request.
EXPLAIN is one of the most powerful tools at your disposal to understand and optimize your MySQL queries that are slow or perhaps you have doubts regarding their performance, but unfortunately, many DBAs or developers rarely use them.
In this section, I will show you how to interpret the results of EXPLAIN and how to use it to optimize your queries.
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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.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.