/栏目数据清零
update [!db.pre!]enewsclass set infos = 0, allinfos = 0 where classid=2 limit 1

注：如果不是全部清零请写上classid，全部代码：update [!db.pre!]enewsclass set infos = 0, allinfos = 0

//清空NEWS表
TRUNCATE [!db.pre!]ecms_news;
TRUNCATE [!db.pre!]ecms_news_check;
TRUNCATE [!db.pre!]ecms_news_check_data;
TRUNCATE [!db.pre!]ecms_news_data_1;
TRUNCATE [!db.pre!]ecms_news_doc;
TRUNCATE [!db.pre!]ecms_news_doc_data;
TRUNCATE [!db.pre!]ecms_news_doc_index;
TRUNCATE [!db.pre!]ecms_news_index;


补充：其它模型 把news改你的模型名字 如info