Oracle 11g-列到行

Question

我的数据进入系统（格式不能更改），如下所示：

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

我需要将其更改为：

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

我可以使用行= 1的子选择来拆分日期。我可以替换名称中的（速度）（成本）。 但是我做错了。

  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;

有什么想法吗？ 必须有一种更好的方法，因为我已经拥有28列的数据，所以27个“联合”会变得一团糟

谢谢

Answer 1

它不是很优雅，因为它使用了老式的枢轴，但是我不知道如何通过11g PIVOT功能来做到这一点：

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

感谢您的回答，他们让我思考。 也很抱歉等待了很长时间，我已经下班了两个星期。

我已经处理了以下内容

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;