问题 安装Joomla!之后出现‘DB function failed with error number 1’ 错误

本人是新手，根据白大人的向导安装之后，在点击‘单元管理’、‘插件管理’等功能项时，出现如下错误：

DB function failed with error number 1
Can't create/write to file '\xampp\tmp\#sql_f5c_0.MYD' (Errcode: 17) SQL=SELECT s.*, g.name AS groupname, u.name AS editor FROM jos_sections AS s LEFT JOIN jos_content AS cc ON s.id = cc.sectionid LEFT JOIN jos_users AS u ON u.id = s.checked_out LEFT JOIN jos_groups AS g ON g.id = s.access WHERE s.scope = 'content' GROUP BY s.id ORDER BY s.ordering , s.ordering LIMIT 0, 20