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联系中心工作人员——确认光盘损坏——邮寄损坏的光盘至中心——中心重新寄发光盘
update wedonet_user set user_atime=GetDate() where id=0
update wedonet_user set isonline=0 where isonline=1 and datediff(n,user_atime,GetDate())>20
select id,classid,tags,descrip,title,content from [wedonet_doc] where isdel=0 and ispass=1 and classid=833 and id=142
update [wedonet_doc] set hits=hits+1 where id=142
select top 10 id,title from [wedonet_keyword] order by mycount desc
