inner join和case能一起使用吗?解决方案

inner join和case能一起使用吗?
Select   P.*,T.Name   From   PartsCTE   as   P
inner   join  
  CASE   TypeId
  WHEN   1   THEN   [Regional]
                  WHEN   2   THEN   [Tours]
  end   as   T
on   T.ID=P.ObjectId

Regional,Tours为表名

------解决方案--------------------
当然可以，但是用法不对
------解决方案--------------------
Select
P.*,
case TypeId
when 1 then (select Name from [Regional] where ID=P.ObjectId)
when 2 then (select Name from [Tours] where ID=P.ObjectId)
end as Name
From
PartsCTE as P
------解决方案--------------------
还可以用union

select P.*,T.Name from PartsCTE P,[Regional] T where T.ID=P.ObjectId
union all
select P.*,T.Name from PartsCTE P,[Tours] T where T.ID=P.ObjectId
------解决方案--------------------
--这样写
Select P.*,T.Name
From PartsCTE as P inner join
(
select 1 as sort,id,name from [Regional]
union
select 2 as sort,id,name from [Tours]
)t
on T.ID=P.ObjectId and t.sort = p.typeid