Unpivoting data fails due to type conflict - sql-server-2008-r2

Question

I am using SQL server 2008 and I am trying to unpivot the data. Here is the data that I am using:
TIME_ELAPSE BUILDINGS_CLEARED FLOORS_CLEARED AWAITING_PERC
----------- ----------------- -------------- ------------------
15h 21m 4/4 12/12 0
I need output like row values to column:
TIME_ELAPSE 15h 21m
BUILDINGS_CLEARED 4/4
FLOORS_CLEARED 12/12
AWAITING_PERC 0
What I tried:
SELECT NAME,VALUE
FROM #TEMP_DRILLUP_SUMMARY
UNPIVOT(VALUE FOR NAME IN (Time_Elapse,BUILDINGS_CLEARED,FLOORS_CLEARED,AWAITING_PERC))D
The error I received:
Msg 8167, Level 16, State 1, Line 72 The type of column "BUILDINGS_CLEARED" conflicts with the type of other columns specified in the UNPIVOT list.

Answer 1

Bringing all columns to the same data type will allow you to use the UNPIVOT statement.
Sample data
create table test2
(
TIME_ELAPSE nvarchar(10),
BUILDINGS_CLEARED nvarchar(10),
FLOORS_CLEARED nvarchar(10),
AWAITING_PERC int -- different type!
);
insert into test2 (TIME_ELAPSE, BUILDINGS_CLEARED, FLOORS_CLEARED, AWAITING_PERC) values
('15h 21m', '4/4', '12/12', '0');
Issue reproduction
SELECT NAME, VALUE
FROM test2
UNPIVOT(VALUE FOR NAME IN (Time_Elapse, BUILDINGS_CLEARED, FLOORS_CLEARED, AWAITING_PERC)) D
This gives:
The type of column "AWAITING_PERC" conflicts with the type of other columns specified in the UNPIVOT list.
Solution
Bring all columns to the same data type before unpivoting (I used nvarchar(10) because you did not include your table definition).
with cte as
(
select TIME_ELAPSE,
BUILDINGS_CLEARED,
FLOORS_CLEARED,
convert(nvarchar(10), AWAITING_PERC) as AWAITING_PERC -- align data types
from test2
)
SELECT NAME, VALUE
FROM cte
UNPIVOT(VALUE FOR NAME IN (TIME_ELAPSE, BUILDINGS_CLEARED, FLOORS_CLEARED, AWAITING_PERC)) D
Result
NAME VALUE
----------------- -------
TIME_ELAPSE 15h 21m
BUILDINGS_CLEARED 4/4
FLOORS_CLEARED 12/12
AWAITING_PERC 0
Fiddle to see things in action.