oracle 在数据库中自动进行队列分析

xt0899hw  于 2023-05-06  发布在  Oracle
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我想为订阅执行队列分析并获取报告。假设在1月份,有100个订阅,在2月份,在这100个订阅中只有80个是活跃的,在3月份,在最初的100个订阅中只有50个是活跃的,在4月份只有30个仍然存在。我想将这些数据存储在Oracle数据库中,并每月继续添加数据。最好的办法是什么?

可以使用物化视图,但对当前日期有限制。请提出一些我可以使用的方法。

kcrjzv8t

kcrjzv8t1#

如果我得到了正确的,如果你的数据是(或可能是)类似于:

WITH          -- Sample data
    tbl  AS
        (   Select 1 "ID", To_Date('12.01.2023', 'dd.mm.yyyy') "ACT_DATE", 'ACTIVATION' "ACT_TYPE" From Dual UNION ALL
            Select 2, To_Date('19.01.2023', 'dd.mm.yyyy'), 'ACTIVATION' From Dual UNION ALL
            Select 3, To_Date('19.01.2023', 'dd.mm.yyyy'), 'ACTIVATION' From Dual UNION ALL
            Select 4, To_Date('19.01.2023', 'dd.mm.yyyy'), 'ACTIVATION' From Dual UNION ALL
            Select 5, To_Date('19.01.2023', 'dd.mm.yyyy'), 'ACTIVATION' From Dual UNION ALL
            Select 1, To_Date('12.02.2023', 'dd.mm.yyyy'), 'ACTIVITY'   From Dual UNION ALL
            Select 1, To_Date('31.01.2023', 'dd.mm.yyyy'), 'ACTIVITY'   From Dual UNION ALL
            Select 3, To_Date('13.02.2023', 'dd.mm.yyyy'), 'ACTIVITY'   From Dual UNION ALL
            Select 2, To_Date('17.02.2023', 'dd.mm.yyyy'), 'ACTIVITY'   From Dual UNION ALL
            Select 6, To_Date('17.02.2023', 'dd.mm.yyyy'), 'ACTIVATION' From Dual UNION ALL
            Select 7, To_Date('19.02.2023', 'dd.mm.yyyy'), 'ACTIVATION' From Dual UNION ALL
            Select 1, To_Date('10.03.2023', 'dd.mm.yyyy'), 'ACTIVITY'   From Dual UNION ALL
            Select 2, To_Date('12.03.2023', 'dd.mm.yyyy'), 'ACTIVITY'   From Dual UNION ALL
            Select 6, To_Date('27.03.2023', 'dd.mm.yyyy'), 'ACTIVITY'   From Dual UNION ALL
            Select 6, To_Date('10.04.2023', 'dd.mm.yyyy'), 'ACTIVITY'   From Dual
        ),

        ID ACT_DATE  ACT_TYPE 
---------- --------- ----------
         1 12-JAN-23 ACTIVATION 
         2 19-JAN-23 ACTIVATION 
         3 19-JAN-23 ACTIVATION 
         4 19-JAN-23 ACTIVATION 
         5 19-JAN-23 ACTIVATION 
         1 12-FEB-23 ACTIVITY   
         1 31-JAN-23 ACTIVITY   
         3 13-FEB-23 ACTIVITY   
         2 17-FEB-23 ACTIVITY   
         6 17-FEB-23 ACTIVATION 
         7 19-FEB-23 ACTIVATION 
         1 10-MAR-23 ACTIVITY   
         2 12-MAR-23 ACTIVITY   
         6 27-MAR-23 ACTIVITY   
         6 10-APR-23 ACTIVITY

...然后你可以创建一个cte(命名为grid)来反映你预期结果的结构:

grid AS
    ( SELECT    t1.ACTIVATION_MONTH, t1.RN_1, t2.ACT_MONTH, t2.RN_2
      FROM      ( Select      To_Char(t.ACT_DATE, 'MON-yy') "ACTIVATION_MONTH", 
                              To_Char(t.ACT_DATE, 'yyyymm') "RN_1"
                  From        tbl t
                  Where       ACT_TYPE = 'ACTIVATION'
                  Group By    To_Char(t.ACT_DATE, 'MON-yy'), To_Char(t.ACT_DATE, 'yyyymm')
                  Order By    To_Char(t.ACT_DATE, 'yyyymm')
                ) t1
      LEFT JOIN ( Select      To_Char(t.ACT_DATE, 'MON-yy') "ACT_MONTH", 
                              To_Char(t.ACT_DATE, 'yyyymm') "RN_2"
                  From        tbl t 
                  Group By    To_Char(t.ACT_DATE, 'MON-yy'), To_Char(t.ACT_DATE, 'yyyymm')
                  Order By    To_Char(t.ACT_DATE, 'yyyymm')
                ) t2 ON(t2.RN_2 >= t1.RN_1)
    )
--
--  grid result
ACTIVATION_MONTH RN_1   ACT_MONTH RN_2 
---------------- ------ --------- ------
JAN-23           202301 JAN-23    202301 
JAN-23           202301 FEB-23    202302 
JAN-23           202301 MAR-23    202303 
JAN-23           202301 APR-23    202304 
FEB-23           202302 FEB-23    202302 
FEB-23           202302 MAR-23    202303 
FEB-23           202302 APR-23    202304

...现在你可以使用RN_1作为ACTIVATIONS条件生成器,使用RN_2(或两者)作为ACTIVITIES条件生成器。
主SQL

SELECT  g.ACTIVATION_MONTH, g.ACT_MONTH, 
        CASE WHEN g.RN_1 = g.RN_2 
             THEN ( Select Count(Distinct ID) 
                    From tbl 
                    Where ACT_TYPE = 'ACTIVATION' And To_Char(ACT_DATE, 'yyyymm') = g.RN_1) 
        ELSE  ( Select Count(Distinct ID) 
                    From tbl 
                    Where ACT_TYPE = 'ACTIVITY' And 
                          To_Char(ACT_DATE, 'yyyymm') = g.RN_2 And 
                          ID IN(SELECT ID FROM TBL WHERE ACT_TYPE =  'ACTIVATION' And To_Char(ACT_DATE, 'yyyymm') = g.RN_1))
        END "ACTIVE_SUBS"
FROM grid g
--  
--  R e s u l t :
ACTIVATION_MONTH ACT_MONTH ACTIVE_SUBS
---------------- --------- -----------
JAN-23           JAN-23              5 
JAN-23           FEB-23              3 
JAN-23           MAR-23              2 
JAN-23           APR-23              0 
FEB-23           FEB-23              2 
FEB-23           MAR-23              1 
FEB-23           APR-23              1

附加说明:
网格cte生成激活月份(JAN和FEB)的结构,然后是随后的月份,直到数据中的最后一个月份。
主SQL遵循网格结构,统计在月份内激活的ID,其中(RN_1 = RN_2 ===〉JAN = JAN或FEB = FEB),因此列ACTIVE_SUBS中的这些行显示激活的数量。其余的动作月份(具有相同的激活月份)显示在激活月份内激活的仍然有效的ID的数量。
也许一个激活和仍然激活的ID列表可以帮助。下面是相同的主SQL,其中新添加了两个列来显示列表。

SELECT  g.ACTIVATION_MONTH, 
        ( Select Distinct LISTAGG(Distinct ID, ', ') WITHIN GROUP (Order By ID) OVER() "ID_LIST_ACTIVATED" 
                    From tbl 
                    Where ACT_TYPE = 'ACTIVATION' And To_Char(ACT_DATE, 'yyyymm') = g.RN_1) "ACTIVATED_IDS",
        --
        g.ACT_MONTH, 
        CASE WHEN g.RN_1 = g.RN_2 
             THEN ( Select Count(Distinct ID) 
                    From tbl 
                    Where ACT_TYPE = 'ACTIVATION' And To_Char(ACT_DATE, 'yyyymm') = g.RN_1) 
        ELSE  ( Select Count(Distinct ID) 
                    From tbl 
                    Where ACT_TYPE = 'ACTIVITY' And 
                          To_Char(ACT_DATE, 'yyyymm') = g.RN_2 And 
                          ID IN(SELECT ID FROM TBL WHERE ACT_TYPE =  'ACTIVATION' And To_Char(ACT_DATE, 'yyyymm') = g.RN_1))
        END || ' IDs' "ACTIVE_SUBS",
        --
        (Select Distinct LISTAGG(Distinct ID, ', ') WITHIN GROUP (Order By ID) OVER() "ID_LIST_ACTIVE"
                    From tbl 
                    Where ACT_TYPE = 'ACTIVITY' And 
                          To_Char(ACT_DATE, 'yyyymm') = g.RN_2 And 
                          ID IN(SELECT ID FROM TBL WHERE ACT_TYPE =  'ACTIVATION' And To_Char(ACT_DATE, 'yyyymm') = g.RN_1)) "ACTIVE_IDS"
FROM grid g
--  
--  R e s u l t :
ACTIVATION_MONTH  ACTIVATED_IDS  ACT_MONTH  ACTIVE_SUBS  ACTIVE_IDS
----------------  -------------  ---------  -----------  --------------------
JAN-23            1, 2, 3, 4, 5  JAN-23     5   IDs        1
JAN-23            1, 2, 3, 4, 5  FEB-23     3   IDs        1, 2, 3
JAN-23            1, 2, 3, 4, 5  MAR-23     2   IDs        1, 2
JAN-23            1, 2, 3, 4, 5  APR-23     0   IDs
FEB-23            6, 7           FEB-23     2   IDs
FEB-23            6, 7           MAR-23     1   IDs         6
FEB-23            6, 7           APR-23     1   IDs         6

更新:
为了避免使用IN子句,您可以尝试创建另外两个cte-s,如下所示:

activations AS
        ( Select To_Char(ACT_DATE, 'yyyymm') "ACT_DATE", ID From tbl Where ACT_TYPE = 'ACTIVATION' ),
  activities AS
        ( Select a.ACT_DATE "ACT_DATE_1", To_Char(a1.ACT_DATE, 'yyyymm') "ACT_DATE_2", a1.ID 
          From tbl a1 
          Left Join activations a ON(a.ID = a1.ID And a.ACT_DATE != To_Char(a1.ACT_DATE, 'yyyymm') )
          Where a1.ACT_TYPE = 'ACTIVITY' )

...并将主SQL更改为:

SELECT  g.ACTIVATION_MONTH, g.ACT_MONTH,
        CASE WHEN g.RN_1 = g.RN_2 
             THEN (Select Count(ID) From activations Where ACT_DATE = g.RN_1) 
        ELSE  (Select Count(Distinct ID) From activities Where ACT_DATE_1 = g.RN_1 And ACT_DATE_2 = g.RN_2)
        END "ACTIVE_SUBS"
FROM grid g
Order By g.RN_1, g.RN_2

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