第一点: 织梦DEDECMS的文章是分别存储在三个表里面[addonarticle],[archives],[arctiny]通过addonarticle.aid、archives.id、arctiny.id关联,删除文章时,应该删除三个表里的记录.
第二点: 执行SQL可以从PHPMYADMIN，或者DEDECMS后台系统设置-SQL命令行工具里
第三点: 本次手动删除内容为空或者字数少于200的文章,分了两步分别删除两个表,总结代码如下:
1: 查看要删除文章的代码: select * from addonarticle where length(body)<200 select * from addonarticle where length(body)<200 2: 删除内容表. delete from addonarticle where length(body)<200 delete from addonarticle where length(body)<200 3: 查看要删除文章的第二个表的代码: select * from archives t1 left join addonarticle t2 on t1.id=t2.aid where t2.aid is null and t1.channel=1 select * from archives t1 left join addonarticle t2 on t1.id=t2.aid where t2.aid is null and t1.channel=1 4: 删除第二个表. DELETE archives t1 from archives t1 left join addonarticle t2 on t1.id=t2.aid where t2.aid is null and t1.channel=1 DELETE archives t1 from archives t1 left join addonarticle t2 on t1.id=t2.aid where t2.aid is null and t1.channel=1 5、查看要删除文章的第三个表的代码: select * from arctiny t1 left join addonarticle t2 on t1.id=t2.aid where t2.aid is null and t1.channel=1 select * from arctiny t1 left join addonarticle t2 on t1.id=t2.aid where t2.aid is null and t1.channel=1 6: 删除第三个表. DELETE arctiny t1 from arctiny t1 left join addonarticle t2 on t1.id=t2.aid where t2.aid is null and t1.channel=1 DELETE arctiny t1 from arctiny t1 left join addonarticle t2 on t1.id=t2.aid where t2.aid is null and t1.channel=1 如果你不查看的话,直接执行第2,4,6步就可以了，其中t1.channel=1是只操作普通文章类别的意思，防止删除软件等其他类别。