Oracle 11g: Unpivot multiple columns and include column name

Question

I\'m triyng to unpivot multiple columns in my dataset. Here\'s what my data look like.

CREATE TABLE  T5 (idnum NUMBER,f1 NUMBER(10,5),f2 NUMBER(10,5),f3 NUMB         


        

Answer 1

Change your UNPIVOT to be like this

select A.*, sk
from (select IDNUM,F1,F2,F3,E1,E2,H1,H2,
      null as E3,null as H3
      from T5) AS A
UnPivot((F,E,H) for sk in ((F1,E1,H1) as 'F1',
                              (F2,E2,H2) as 'F2',
                              (F3,E3,H3) as 'F3'))
order by IDNUM,SK;

This should do the trick