SQL Unpivot multiple columns Data

Question

I am using SQL server 2008 and I am trying to unpivot the data. Here is the SQL code that I am using,

CREATE TABLE #pvt1 (VendorID int, Sa int, Emp1 int,Sa1          


        

Answer 1

An easier way to unpivot the data would be to use a CROSS APPLY to unpivot the columns in pairs:

select vendorid, orders, orders1
from pvt1
cross apply
(
  select emp1, sa union all
  select emp2, sa1
) c (orders, orders1);

See SQL Fiddle with Demo. Or you can use CROSS APPLY with the VALUES clause if you don't want to use the UNION ALL:

select vendorid, orders, orders1
from pvt1
cross apply
(
  values 
    (emp1, sa),
    (emp2, sa1)
) c (orders, orders1);

See SQL Fiddle with Demo