Question

我有以下需要帮助的方案

ID_Number Budget_Period Start_Date End_date   Period_Type
   1         1          2/12/2007  2/11/2008  Annual 
   1         2          3/15/2008  3/14/2009  Annual 
   1         3          4/15/2009  4/14/2010  Annual
   2         1          8/18/2010  8/17/2011  Annual 
   2         2          9/19/2011  9/18/2012  Annual

我需要的是使给定id的开始日期和结束日期保持一致，以便在给定id_number的预算期间没有间隙。例如对于ID_Number 1，Min（Start_date）是2/12 / 2007和Max（End_date）是4/14/2010所以每个预算期间的数据应该在开始日期和结束日期之间间隔364天，如下所示

必需的输出

ID_Number Budget_Period Start_Date End_date   Period_Type
   1         1          2/12/2007  2/11/2008  Annual 
   1         2          2/12/2008  2/11/2009  Annual 
   1         3          2/12/2010  4/14/2010  Annual
   2         1          8/18/2010  8/17/2011  Annual
   2         2          8/18/2011  09/18/2012 Annual

可以使用分析函数完成吗？我无法使用我尝试的查询获得所需的输出。任何帮助将不胜感激

Answer 1

如果每个范围是1年减去一天那么输出不应该是这个吗？

SQL> select id_number, i+1 budget_period, start_date, end_date, 'Annual' period_type
  2    from (select id_number, min(start_date) start_date, max(end_date) end_date from a
  3           group by id_number)
  4         model
  5           partition by (id_number)
  6           dimension by (0 as i)
  7           measures(start_date, end_date, end_date ed)
  8           rules
  9           (start_date[for i from 1 to ceil(months_between(add_months(end_date[0],-12), start_date[0])/12)
 10                       increment 1] = add_months(start_date[0], 12*cv(i)),
 11            end_date[any] = least(ed[0], add_months(start_date[CV()], 12)-1)
 12           )
 13   order by 1,2;

 ID_NUMBER BUDGET_PERIOD START_DAT END_DATE  PERIOD
---------- ------------- --------- --------- ------
         1             1 12-FEB-07 11-FEB-08 Annual
         1             2 12-FEB-08 11-FEB-09 Annual
         1             3 12-FEB-09 11-FEB-10 Annual
         1             4 12-FEB-10 14-APR-10 Annual
         2             1 18-AUG-10 17-AUG-11 Annual
         2             2 18-AUG-11 17-AUG-12 Annual
         2             3 18-AUG-12 18-SEP-12 Annual

7 rows selected.

Answer 2

不指定结束日期是有效的 - 如果下一条记录的开始日期是后一天，那就是多余的。

棘手/棘手的分析功能问题

2 个答案: