在线等啊，各位大侠救命！ selectdatediff( h ,selectVis_TimefromNS_Visitorswherevis_userid2152,getda
在线等啊，各位大侠救命！
select datediff( "h ",select Vis_Time from NS_Visitors where vis_userid =2152,getdate())
错了，不知道错在哪里？
[解决办法]
select datediff(hh,(select Vis_Time from NS_Visitors where vis_userid =2152),getdate())