If we ever wondered what’s the performance of a MySQL query and a SELECT query be more efficient (and hence faster)? MySQL has an embedded profiling feature that we can use from stock MySQL. To enable it, it’s pretty simple: mysql> SET profiling = 1;

If you have large production MySQL database that you wish to backup or replicate for testing, it is important to handle the export gently :) For me, I use mysqldump. Remember that you must include several optional flags, which will speed up the export and most importantly avoid stressing your production MySQL. mysqldump -u[username] -p[password] […]