Oracle 11g - Столбцы рядов

Question

У меня есть данные, исходящие в мою систему (формат не может быть изменен) выглядят как так:

Row, C001,   C002, C003, to C029 (Columns for FY values) 
1, Name,   0910, 1011 
2, Eqt1 (Speed), 60, 100 
3, Eqt1 (Cost), 20, 30 
4, Eqt2 (Speed), 50, 60 
5, Eqt2 (Cost), 30, 45 

мне нужно изменить в:

Name, Start_Date, End_Date, Speed, Cost 
Eqt1, 01-APR-2009, 30-MAR-2010, 60, 20 
Eqt1, 01-APR-2010, 30-MAR-2011, 100, 30 
Eqt2, 01-APR-2009, 30-MAR-2010, 50, 30 
Eqt2, 01-APR-2010, 30-MAR-2011, 60, 45 

можно разделить дата, используя подвыбор, где строка = 1. Я могу заменить (скорость) (стоимость) на имя. Но я не могу понять.

WITH survey_query AS (
     SELECT * 
     FROM tbl_data 
) 
    SELECT (CASE WHEN upper(sq.c001) LIKE '%FLEET SIZE%' THEN TRIM(REPLACE(upper(sq.c001), 'FLEET SIZE', '')) 
       WHEN upper(sq.c001) LIKE '%FLYING HOURS%' THEN TRIM(REPLACE(upper(sq.c001), 'FLYING HOURS', '')) 
      END) equipment_name 
     ,(select TO_DATE(2000+dbms_lob.substr(c002,2,1)||'0101', 'yymmdd') FROM survey_query where line = 1) start_date 
     ,(select TO_DATE(2000+dbms_lob.substr(c002,2,4)||'0330', 'yymmdd') FROM survey_query where line = 1) end_date 
      ,(case when UPPER(sq.c001) like '%FLEET SIZE%' THEN sq.c002 END) fleet_size 
      ,(case when UPPER(sq.c001) like '%FLYING HOURS%' THEN sq.c002 END) flying_hours 
    FROM survey_query sq 
    WHERE line > 1 
UNION 
    SELECT (CASE WHEN upper(sq.c001) LIKE '%FLEET SIZE%' THEN TRIM(REPLACE(upper(sq.c001), 'FLEET SIZE', '')) 
       WHEN upper(sq.c001) LIKE '%FLYING HOURS%' THEN TRIM(REPLACE(upper(sq.c001), 'FLYING HOURS', '')) 
      END) equipment_name 
     ,(select TO_DATE(2000+dbms_lob.substr(c003,2,1)||'0101', 'yymmdd') FROM survey_query where line = 1) start_date 
     ,(select TO_DATE(2000+dbms_lob.substr(c003,2,4)||'0330', 'yymmdd') FROM survey_query where line = 1) end_date 
      ,(case when UPPER(sq.c001) like '%FLEET SIZE%' THEN sq.c003 END) fleet_size 
      ,(case when UPPER(sq.c001) like '%FLYING HOURS%' THEN sq.c003 END) flying_hours 
    FROM survey_query sq 
    WHERE line > 1; 

Любые идеи, пожалуйста? Там надо быть лучше, как и у меня 28 колонок стоит данных так будет бардак с 27 «союзами»

Благодарности

Answer 1

Это не очень элегантно, так как он использует поворотную старого стиля , но я не мог понять, как сделать это с помощью функциональности 11g PIVOT:

with sample_data as (select 1 row#, 'Name' c001, 0910 c002, 1011 c003, 1112 c004 from dual union all 
        select 2 row#, 'Eqt1 (Speed)' c001, 60 c002, 100 c003, 140 c004 from dual union all 
        select 3 row#, 'Eqt1 (Cost)' c001, 20 c002, 30 c003, 80 c004 from dual union all 
        select 4 row#, 'Eqt2 (Speed)' c001, 50 c002, 60 c003, 70 c004 from dual union all 
        select 5 row#, 'Eqt2 (Cost)' c001, 30 c002, 45 c003, 56 c004 from dual), 
-- end of mimicking your table as a subquery called "sample_data" 
-- you wouldn't need this subquery, since you would have your own table/query to use in place 
-- change the table name referred to in the res subquery below as appropriate 
      res as (select row#, 
          case when c001 like '%(Speed)' then substr(c001, 1, length(c001) - 8) 
           when c001 like '%(Cost)' then substr(c001, 1, length(c001) - 7) 
           else c001 
          end name, 
          case when c001 like '%(Speed)' then 'Speed' 
           when c001 like '%(Cost)' then 'Cost' 
           else c001 
          end type, 
          to_date('01/04'||substr(first_value(lpad(c002, 4, 0)) over (order by row#), 1, 2), 'dd/mm/rr') fy1_start_date, 
          to_date('31/03'||substr(first_value(lpad(c002, 4, 0)) over (order by row#), 3, 2), 'dd/mm/rr') fy1_end_date, 
          to_date('01/04'||substr(first_value(lpad(c003, 4, 0)) over (order by row#), 1, 2), 'dd/mm/rr') fy2_start_date, 
          to_date('31/03'||substr(first_value(lpad(c003, 4, 0)) over (order by row#), 3, 2), 'dd/mm/rr') fy2_end_date, 
          to_date('01/04'||substr(first_value(lpad(c004, 4, 0)) over (order by row#), 1, 2), 'dd/mm/rr') fy3_start_date, 
          to_date('31/03'||substr(first_value(lpad(c004, 4, 0)) over (order by row#), 3, 2), 'dd/mm/rr') fy3_end_date, 
          c002, 
          c003, 
          c004 
        from sample_data), 
      dummy as (select level id 
        from dual 
        connect by level <= 3 -- num fyears to consider 
        ) 
select name, 
     case when d.id = 1 then res.fy1_start_date 
       when d.id = 2 then res.fy2_start_date 
       when d.id = 3 then res.fy3_start_date 
     end start_date, 
     case when d.id = 1 then res.fy1_end_date 
       when d.id = 2 then res.fy2_end_date 
       when d.id = 3 then res.fy3_end_date 
     end end_date, 
     max(case when d.id = 1 and res.type = 'Speed' then c002 
        when d.id = 2 and res.type = 'Speed' then c003 
        when d.id = 3 and res.type = 'Speed' then c004 
      end) speed, 
     max(case when d.id = 1 and res.type = 'Cost' then c002 
        when d.id = 2 and res.type = 'Cost' then c003 
        when d.id = 3 and res.type = 'Cost' then c004 
      end) cost 
from  res 
     cross join dummy d 
where res.row# != 1 
group by name, 
     case when d.id = 1 then res.fy1_start_date 
       when d.id = 2 then res.fy2_start_date 
       when d.id = 3 then res.fy3_start_date 
     end, 
     case when d.id = 1 then res.fy1_end_date 
       when d.id = 2 then res.fy2_end_date 
       when d.id = 3 then res.fy3_end_date 
     end 
order by name, start_date; 

NAME START_DATE END_DATE   SPEED  COST 
----- ----------- ----------- ---------- ---------- 
Eqt1 01-APR-2009 31-MAR-2010   60   20 
Eqt1 01-APR-2010 31-MAR-2011  100   30 
Eqt1 01-APR-2011 31-MAR-2012  140   80 
Eqt2 01-APR-2009 31-MAR-2010   50   30 
Eqt2 01-APR-2010 31-MAR-2011   60   45 
Eqt2 01-APR-2011 31-MAR-2012   70   56 

Answer 2

Спасибо за ответы, они заставили меня задуматься. Также жаль долгое ожидание ответа, я не работал 2 недели.

Я пошел со следующим

WITH ss_query AS (
     SELECT * 
     FROM tbl_data 
) 
    , rowgen as (select /*+materialize()*/level yr from dual connect by level <= 3) 
    , dates as (select /*+materialize()*/to_date(substr(c001,1,2)||'0401','yymmdd') fy_start from ss_query where line = 2) 
select equipment_name 
, date_start 
, date_end 
, max(cost) cost 
, max(speed) speed 
from (
    select 
    case when upper(c001) like '%COST%' then substr(c001,1,instr(upper(c001),'COST')-2) 
     when upper(c001) like '%SPEED%' then substr(c001,1,instr(upper(c001),'SPEED') -2) 
    end equipment_name, 
    add_months(fy_start,12 * (yr - 1)) date_start, 
    add_months(fy_start,12 * (yr))-1 date_end, 
    case when upper(c001) like '%SPEED%' then 
     case when yr = 1 then c002 
      when yr = 2 then c003 
      when yr = 3 then c004 
     end 
     end speed, 
    case when upper(c001) like '%COST%' then 
     case when yr = 1 then c002 
      when yr = 2 then c003 
      when yr = 3 then c004 
     end 
     end cost 
    from ss_query , 
     rowgen, 
     dates 
    where line > 2 
) 
where speed is not null or cost is not null 
group by equipment_name, date_start, date_end 
order by equipment_name, date_start;