Question

I am joining 3 tables as shown below –

select *
from Employee as e inner join [Grant] as g
on e.EmpID = g.EmpID -- "virtual table"  
inner join Location as l
on l.LocationID = e.LocationID

Code from select to GrantID seems to be a “virtual table”. So, it can be joined with another table (Location) to perform a 3 table join. I want to give this virtual table an alias. Is that possible ? If yes, then how do i do it ?

NOTE –
i use sql server 2008 express

Answer 1

Can’t you just do this?

SELECT <columns>
FROM (SELECT <columns 2> FROM Employee as e INNER JOIN [Grant] as g on e.EmpID = g.EmpID) as t1
  INNER JOIN Location as l on t1.LocationID = l.LocationID

I don’t know what columns you’re trying to select, thus the placeholder.