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Oracle Combina più colonne in una

Puoi usare UNPIVOT :

Impostazione Oracle :

CREATE TABLE your_table ( spot, id, sunday, monday, tuesday, wednesday, thursday, friday, saturday ) AS
  SELECT 'A', 1, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4 FROM DUAL UNION ALL
  SELECT 'A', 2, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45 FROM DUAL UNION ALL
  SELECT 'A', 3, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5 FROM DUAL;

Richiesta :

SELECT *
FROM   your_table
UNPIVOT ( Value FOR Day_of_week IN (
  sunday    AS 1,
  monday    AS 2,
  tuesday   AS 3,
  wednesday AS 4,
  thursday  AS 5,
  friday    AS 6,
  saturday  AS 7
 ) );

Risultato :

S ID DAY_OF_WEEK VALUE
- -- ----------- -----
A  1           1    .1
A  1           2   .15
A  1           3    .2
A  1           4   .25
A  1           5    .3
A  1           6   .35
A  1           7    .4
A  2           1   .15
A  2           2    .2
A  2           3   .25
A  2           4    .3
A  2           5   .35
A  2           6    .4
A  2           7   .45
A  3           1    .2
A  3           2   .25
A  3           3    .3
A  3           4   .35
A  3           5    .4
A  3           6   .45
A  3           7    .5