dedecms清空所有文章怎么操作?sql语句如何写?

　　小C新建了一个站，确切的说是复制，出于seo考虑，决定清空所有文章，那么dedecms清空所有文章怎么操作?sql语句如何写呢?特别提醒：修改之前一定要先做好备份，以防万一！下面的语句在迫不得已的情况下才进行，小白切勿轻易操作！操作方法是：点击系统-系统设置-SQL命令行工具，选择多行命令，黏贴如下代码

delete from dede_addonarticle;
delete from dede_addonimages;
delete from dede_archives;
delete from dede_arctiny;
delete from dede_co_htmls;
delete from dede_co_urls;
delete from dede_co_mediaurls;
delete from dede_tagindex ;
delete from dede_taglist;
delete from dede_keywords;
TRUNCATE TABLE `dede_archives`;
TRUNCATE TABLE `dede_archives`;
ALTER TABLE `dede_archives` AUTO_INCREMENT =1;
ALTER TABLE `dede_arctiny` AUTO_INCREMENT =1;
ALTER TABLE `dede_addonarticle` AUTO_INCREMENT =1;