首页 / 数据库 / MySQL / Mysql教程:性能跟踪语句
Mysql教程:性能跟踪语句2010-07-24杨涛原文链接:http://blog.chinaunix.net/u/29134/showart_480834.htmlMYSQL5.0家族提供的性能跟踪器确实很爽。要注意两点。1、不过版本要在5.0.37之后手册上介绍:(SHOW PROFILES and SHOW PROFILE were added in MySQL 5.0.37. )ImportantPlease note that the SHOW PROFILE and SHOW PROFILES functionality is part of the MySQL 5.0 Community Server only.2、变量profiling是用户变量,每次都得重新启用。以下是我做的一些实验。数据很明显,就不多解释了。mysql> use testDatabase changedmysql> set profiling=1;Query OK, 0 rows affected (0.00 sec)mysql> show tables;+----------------+| Tables_in_test |+----------------+| bag_item || bag_user || score || t |+----------------+