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RE: Rolling sums (?)

From: <cosltemp-g.manoj_at_orbitech.co.in>
Date: Fri, 16 Aug 2002 01:53:39 -0800
Message-ID: <F001.004B76E1.20020816015339@fatcity.com> 





Table x_test


year  period      value
2000  1     1
2000  2     2
2000  3     3
2000  4     4
2000  5     5
2000  6     6
2000  7     7
2000  8     8
2000  9     9




2000  10    10


2000  11    11


2000  12    12

2001  1     13
2001  2     14
2001  3     15





Table Indexed on year column.



select a.year,a.period,sum(b.value)


from x_test a,x_test b


where  


(b.year <= a.year) and (b.period between decode((a.year -
b.year),1,a.period,0,1,0) and decode((a.year -
b.year),1,12,0,a.period,0))


group by a.year,a.period


order by a.year,a.period



o/p



year  period sum

2000  1     1
2000  2     3
2000  3     6
2000  4     10
2000  5     15
2000  6     21
2000  7     28
2000  8     36
2000  9     45




2000  10    55


2000  11    66


2000  12    78

2001  1     91
2001  2     104
2001  3     117





explain plan



SELECT STATEMENT Optimizer=CHOOSE


  SORT (GROUP BY)



    NESTED LOOPS


      TABLE ACCESS (FULL) OF X_TEST
      TABLE ACCESS (BY INDEX ROWID) OF X_TEST
       INDEX (RANGE SCAN) OF XI_TST (NON-UNIQUE)







-----Original Message-----


Sent: Thursday, August 15, 2002 6:43 PM


To: ORACLE-L


Cc: nlzanen1




Maybe having a bad hairday but following code will give me for every
period


number the sum of all work in progress for the period plus the previous
12


periods. Basically it takes the period number from the current record
and


sums a column of that record with the previous 12 periods.


year  period      value
2000  1     1
2000  2     2
2000  3     3
2000  4     4
2000  5     5
2000  6     6
2000  7     7
2000  8     8
2000  9     9




2000  10    10


2000  11    11


2000  12    12

2001  1     13
2001  2     14
2001  3     15





So for period 2001 1 I need the values 1 thru 13  added together (91)
Period 2001 2 needs to be the values 2 thru 14 added together (104)
etc....



As you maybe can imagine the explain plan for this baby is 4 full
tablescans on quite large tables. (see below)



My question is if somebody has a better solution to handle this
query?????



Oracle 8.0.5 !!!


AIX 4.3.3




SELECT      V1.ENGAGEMENT


,     V1.YEAR

,     V1.PERIOD

,     MAX(V1.NET_FEE_EARNED_PTD)

,     MAX(V1.EXP_WIP_VAL_PTD)

,     SUM(V2.TIME_WIP_VAL)

,     MAX(V1.GNRL_WON)

,     MAX(V1.GNRL_WOFF)

,     MAX(V1.TIME_WOFF)

,     MAX(V1.WIP_PROV)

,     MAX(V1.EXP_WOFF)

,     MAX(V1.DB_WOFF)

,     MAX(V1.DB_PROV)





FROM



(

select            max(WSTAT.ENG_NUMB) AS ENGAGEMENT,
            max(WSTAT.FNANCL_YEAR) AS YEAR,
            max(WSTAT.PRD_NUMB) AS PERIOD,
            SUM(NVL(WSTAT.TIME_WIP_VAL_PTD, 0))
            + SUM(NVL(WSTAT.GNRL_W_ON_PTD, 0))
            - SUM(NVL(WSTAT.GNRL_W_OFF_PTD, 0))
            - SUM(NVL(WSTAT.TIME_WIP_VAL_W_OFF_PTD, 0))
            - SUM(NVL(WSTAT.WIP_PRVSN_PTD, 0))
            - SUM(NVL(WSTAT.EXP_WIP_VAL_W_OFF_PTD, 0))
            - SUM(NVL(DSTAT.DBTRS_W_OFF_PTD, 0))
            - SUM(NVL(DSTAT.DBTRS_PRVSN_PTD, 0))  NET_FEE_EARNED_PTD,
            SUM(NVL(WSTAT.EXP_WIP_VAL_PTD,0)) EXP_WIP_VAL_PTD,
            SUM(NVL(WSTAT.TIME_WIP_VAL_PTD, 0)) TIME_WIP_VAL,
            SUM(NVL(WSTAT.GNRL_W_ON_PTD, 0)) GNRL_WON,
            SUM(NVL(WSTAT.GNRL_W_OFF_PTD, 0)) GNRL_WOFF,
            SUM(NVL(WSTAT.TIME_WIP_VAL_W_OFF_PTD, 0)) TIME_WOFF,
            SUM(NVL(WSTAT.WIP_PRVSN_PTD, 0)) WIP_PROV,
            SUM(NVL(WSTAT.EXP_WIP_VAL_W_OFF_PTD, 0)) EXP_WOFF,
            SUM(NVL(DSTAT.DBTRS_W_OFF_PTD, 0)) DB_WOFF,
            SUM(NVL(DSTAT.DBTRS_PRVSN_PTD, 0)) DB_PROV
FROM        ENG_WIP_STATS WSTAT,
            ENG_DBTRS_STATS DSTAT
WHERE             WSTAT.ENG_NUMB(+)=DSTAT.ENG_NUMB
AND         WSTAT.FNANCL_YEAR=DSTAT.FNANCL_YEAR
AND         WSTAT.PRD_NUMB=DSTAT.PRD_NUMB
GROUP BY    WSTAT.ENG_NUMB,
            WSTAT.FNANCL_YEAR,
            WSTAT.PRD_NUMB




) v1,


(

select            max(WSTAT.ENG_NUMB) AS ENGAGEMENT,
            max(WSTAT.FNANCL_YEAR) AS YEAR,
            max(WSTAT.PRD_NUMB) AS PERIOD,
            SUM(NVL(WSTAT.TIME_WIP_VAL_PTD, 0))
            + SUM(NVL(WSTAT.GNRL_W_ON_PTD, 0))
            - SUM(NVL(WSTAT.GNRL_W_OFF_PTD, 0))
            - SUM(NVL(WSTAT.TIME_WIP_VAL_W_OFF_PTD, 0))
            - SUM(NVL(WSTAT.WIP_PRVSN_PTD, 0))
            - SUM(NVL(WSTAT.EXP_WIP_VAL_W_OFF_PTD, 0))
            - SUM(NVL(DSTAT.DBTRS_W_OFF_PTD, 0))
            - SUM(NVL(DSTAT.DBTRS_PRVSN_PTD, 0))  NET_FEE_EARNED_PTD,
            SUM(NVL(WSTAT.EXP_WIP_VAL_PTD,0)) EXP_WIP_VAL_PTD,
            SUM(NVL(WSTAT.TIME_WIP_VAL_PTD, 0)) TIME_WIP_VAL,
            SUM(NVL(WSTAT.GNRL_W_ON_PTD, 0)) GNRL_WON,
            SUM(NVL(WSTAT.GNRL_W_OFF_PTD, 0)) GNRL_WOFF,
            SUM(NVL(WSTAT.TIME_WIP_VAL_W_OFF_PTD, 0)) TIME_WOFF,
            SUM(NVL(WSTAT.WIP_PRVSN_PTD, 0)) WIP_PROV,
            SUM(NVL(WSTAT.EXP_WIP_VAL_W_OFF_PTD, 0)) EXP_WOFF,
            SUM(NVL(DSTAT.DBTRS_W_OFF_PTD, 0)) DB_WOFF,
            SUM(NVL(DSTAT.DBTRS_PRVSN_PTD, 0)) DB_PROV
FROM        ENG_WIP_STATS WSTAT,
            ENG_DBTRS_STATS DSTAT
WHERE             WSTAT.ENG_NUMB(+)=DSTAT.ENG_NUMB
AND         WSTAT.FNANCL_YEAR=DSTAT.FNANCL_YEAR
AND         WSTAT.PRD_NUMB=DSTAT.PRD_NUMB
GROUP BY    WSTAT.ENG_NUMB,
            WSTAT.FNANCL_YEAR,
            WSTAT.PRD_NUMB




) V2


WHERE v1.ENGAGEMENT=V2.ENGAGEMENT(+)


AND   TO_DATE(V2.YEAR(+)||V2.PERIOD(+),'YYYYMM') >=

ADD_MONTHS(TO_DATE(V1.YEAR||V1.PERIOD,'YYYYMM'),-12)

AND   TO_DATE(V2.YEAR(+)||V2.PERIOD(+),'YYYYMM') <=
TO_DATE(V1.YEAR||V1.PERIOD,'YYYYMM')



GROUP BY V1.ENGAGEMENT



,     V1.YEAR


,     V1.PERIOD





Explain plan:



   ID   PID QUERY_PLAN


----- -----
------------------------------------------------------------------------
------------
    0       SELECT STATEMENT   Cost = 12531921
    1     0   SORT GROUP BY  Card=62754915
    2     1     MERGE JOIN OUTER  Card=62754915
    3     2       SORT JOIN  Card=1584360
    4     3         VIEW   Card=1584360
    5     4           SORT GROUP BY  Card=1584360
    6     5             FILTER   Card=
    7     6               MERGE JOIN OUTER  Card=
    8     7                 SORT JOIN  Card=1354977
    9     8                   TABLE ACCESS FULL ENG_DBTRS_STATS
Card=1354977
   10     7                 SORT JOIN  Card=1956365
   11    10                   TABLE ACCESS FULL ENG_WIP_STATS
Card=1956365
   12     2       FILTER   Card=
   13    12         SORT JOIN  Card=
   14    13           VIEW   Card=1584360
   15    14             SORT GROUP BY  Card=1584360
   16    15               FILTER   Card=
   17    16                 MERGE JOIN OUTER  Card=
   18    17                   SORT JOIN  Card=1354977
   19    18                     TABLE ACCESS FULL ENG_DBTRS_STATS
Card=1354977
   20    17                   SORT JOIN  Card=1956365
   21    20                     TABLE ACCESS FULL ENG_WIP_STATS


Card=1956365




THX






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--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Jack van Zanen
  INET: nlzanen1_at_EY.NL

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-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: 
  INET: cosltemp-g.manoj_at_orbitech.co.in

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Received on Fri Aug 16 2002 - 04:53:39 CDT












Original text of this message













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