If you need to restore a single table from a full MySQL backup, you may find yourself wondering “how do I do that?”. There are a few steps required, I outline them here for you to restore the contents of just one table back into the database from the mysqldump using Bash. Continue reading
Are you running into MySQL load problems? Learn how to tune MySQL servers for a heavy InnoDB workload, by configuring Continue reading
innodb_buffer_pool_instances. Dividing the InnoDB buffer pool into multiple instances improves Disk I/O. By doing so, you run your database and website more efficiently and faster. Here is a little help for you.
Learn how to replace content in your MySQL database in bulk with MySQL REPLACE. Sometimes it’s useful to know how to bulk edit content in your WordPress MySQL database, using MySQL’s REPLACE() function. Here is how to string replace content in WordPress Continue reading
wp_posts table to bulk edit WordPress posts through MySQL.
Why MySQL indices are so important? At Vevida, we like to help our customers as much as possible. Even with optimizing a MySQL database when they don’t ask for it, or when a customer doesn’t know performance can be improved. For example by adding an index because we spotted a slow query in our slow-query log.
Convert MyISAM tables to InnoDB. In the earlier days of MySQL, the default storage engine for your database was MyISAM. This is also why you still encounter a lot of examples with
engine=MyISAM online. Nowadays, the default storage engine is InnoDB, and MyISAM is no longer actively developed. Therefore, all MySQL performance optimizations are for InnoDB, and it’s recommended to switch to this as your table storage engine.
How to flush MySQL Continue reading
query_cache to prevent fragmentation of free query cache memory space? Here is a how to for unattended and automatically clearing MySQL’s query cache using a Linux cronjob. And I’ll show you how to on the
How to use mysqlcheck when your MySQL table gets corrupted. Check & repair tables with MySQL’s mysqlcheck, a command line table maintenance program. Mysqlcheck checks, repairs, optimizes, or analyzes MySQL tables. In this post I’ll show you how to use Continue reading
mysqlcheck to optimize all MySQL tables using a cronjob.
MySQL string comparison functions for MD5 and SHA1 hashes; how to calculate MD5 and SHA1 hashes in MySQL and compare strings with MySQL. Some web scripting languages like ASP don’t have native string hashing functions -like MD5 or SHA1. This makes it quite difficult to hash or encrypt user supplied input, and to perform string comparison to compare hashes. Let’s make MySQL do the string comparison and hash calculations for us! Continue reading