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 - [MySQL Server and SQL Performance Tuning](https://www.oracle.com/technetwork/community/developer-day/mysql-performance-tuning-403029.pdf)
 - [MySQL Performance Cheat Sheet](https://severalnines.com/database-blog/mysql-performance-cheat-sheet)
 - [Performance Tuning and Configurations for your MySQL Server](https://www.universalclass.com/articles/computers/performance-tuning-and-configurations-for-your-mysql-server.htm)
-- [MAKING IT BETTER: BASIC MYSQL PERFORMANCE TUNING (MYSQLD)](https://mediatemple.net/community/products/dv/204404044/making-it-better%3A-basic-mysql-performance-tuning-(mysqld))
 - [InnoDB Performance Optimization Basics](https://www.percona.com/blog/2013/09/20/innodb-performance-optimization-basics-updated/)
 - [MySQL 101: Tuning MySQL After Upgrading Memory](https://www.percona.com/blog/2020/09/30/mysql-101-tuning-mysql-after-upgrading-memory/)
 - [How MySQL Opens and Closes Tables](https://dev.mysql.com/doc/refman/5.7/en/table-cache.html)