将
select top 1 b.username,b.Subject,b.[Time]
from bbs as b
where b.forumid=a.id
order by b.id
写成三句同样的语句
select top 1 b.username,b.Subject,b.[Time]
from bbs as b
where b.forumid=a.id
order by b.id
写成三句同样的语句
调试欢乐多
请问这个问题在BOOK ONLINE中查询什么词能得到更详细的说明?