Yii调试查看执行SQL语句的方法

'log' => array(
  'class' => 'CLogRouter',
  'routes' => array(
    array(
      'class' => 'CFileLogRoute',
      'levels' => 'trace, info, error, warning',
    ),
    // unment the following to show log messages on web pages
    array(
      'class' => 'CWebLogRoute',
      'levels' => 'trace', //级别为trace
      'categories' => 'system.db.' //只显示关于数据库信息,包括数据库连接,数据库执行语句
    ),
  ),
),