Oracle 11g: desvincular varias columnas e incluir el nombre de la columna

Question

Estoy tratando de evitar varias columnas en mi conjunto de datos. Así es como se ven mis datos.

CREATE TABLE T5 (idnum NUMBER,f1 NUMBER(10,5),f2 NUMBER(10,5),f3 NUMBER(10,5),e1 NUMBER(10,5),e2 NUMBER(10,5),h1 NUMBER(10,5),h2 NUMBER(10,5)); 

INSERT INTO T5 (IDNUM,F1,F2,F3,E1,E2,H1,H2) VALUES (1,'10.2004','5.009','7.330','9.008','8.003','.99383','1.43243'); 
INSERT INTO T5 (IDNUM,F1,F2,F3,E1,E2,H1,H2) VALUES (2,'4.2004','6.009','9.330','4.7008','4.60333','1.993','3.3243'); 
INSERT INTO T5 (IDNUM,F1,F2,F3,E1,E2,H1,H2) VALUES (3,'10.2040','52.6009','67.330','9.5008','8.003','.99383','1.43243'); 
INSERT INTO T5 (IDNUM,F1,F2,F3,E1,E2,H1,H2) VALUES (4,'9.20704','45.009','17.330','29.008','5.003','3.9583','1.243'); 

COMMIT; 

select * from t5; 

IDNUM F1 F2  F3  E1  E2  H1  H2 

1 10.2004 5.009 7.33 9.008 8.003 0.99383 1.43243 
2 4.2004 6.009 9.33 4.7008 4.60333 1.993 3.3243 
3 10.204 52.6009 67.33 9.5008 8.003 0.99383 1.43243 
4 9.20704 45.009 17.33 29.008 5.003 3.9583 1.243 

estoy unpivoting así ...

select * 
from (select IDNUM,F1,F2,F3,E1,E2,H1,H2, 
     null as E3,null as H3 
     from T5) 
UnPivot((F,E,H) for sk in ((F1,E1,H1) as 1, 
           (F2,E2,H2) as 2, 
           (F3,E3,H3) as 3)) 
order by IDNUM,SK; 

IDNUM SK  F  E  H 
----- -- ------- ------- ------- 
    1 1 10.2004 9.008 .99383 
    1 2 5.009 8.003 1.43243 
    1 3  7.33  null  null 
    2 1 4.2004 4.7008 1.993 
    2 2 6.009 4.60333 3.3243 
    2 3  9.33  null  null 
    3 1 10.204 9.5008 .99383 
    3 2 52.6009 8.003 1.43243 
    3 3 67.33  null  null 
    4 1 9.20704 29.008 3.9583 
    4 2 45.009 5.003 1.243 
    4 3 17.33  null  null 

Pero lo que realmente necesita es la siguiente ...

IDNUM SK  F  E  H F_COL_NAME 
----- -- ------- ------- ------- ---------- 
    1 1 10.2004 9.008 .99383   F1 
    1 2 5.009 8.003 1.43243   F2 
    1 3  7.33  null  null   F3 
    2 1 4.2004 4.7008 1.993   F1 
    2 2 6.009 4.60333 3.3243   F2 
    2 3  9.33  null  null   F3 
    3 1 10.204 9.5008 .99383   F1 
    3 2 52.6009 8.003 1.43243   F2 
    3 3 67.33  null  null   F3 
    4 1 9.20704 29.008 3.9583   F1 
    4 2 45.009 5.003 1.243   F2 
    4 3 17.33  null  null   F3 

¿Cómo puedo hacer esto?

Answer 1

Solo select idnum, sk, f, e, h, 'F'||SK as col_name ... Debe especificar todas las columnas en lugar de un asterisco.

gusta esta http://sqlfiddle.com/#!4/12446/21

Answer 2

Cambiar la UNPIVOT que ser así

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; 

Esto debería hacer el truco

Answer 3

intenta esto ..

select * from (select IDNUM,F1,F2,F3,E1,E2,H1,H2, null as E3,null as H3 from T5) 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;