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9.0

SQL Query

Asked by datahelp in Databases Miscellaneous, Oracle 9.x, PL / SQL

The BASE Table has data from Mar 2009 onwards and the result set should display data for fiscal year for example OCT 2008 to SEP 2009 and if we pass a parameter APR  2009 it should return data from OCT 2008 to APR 2009 and we pass the parameter MAY 2009 it should return the data from OCT 2008 to MAY 2009, but the concern here if the table has no data like currently we have data from March 2009 so we should display only from that particular months.  

This is a query i have below and the result set is showing data for Mar 2009 and Apr 2009, Mar 2009 is null and Apr is fine, though i have data for Mar 2009 in table and Apr 2009 it should not return the data for Mar 2009, as the calculation requires the Feb 2009 data to show Mar 2009 values, i hope it is clear 
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SELECT   si.state_name, TO_CHAR(TRUNC(reporting_date, 'mm'), 'Mon-yyyy'), 
SUM(amount)
FROM     (SELECT state_name,
                 TO_DATE(reporting_date, 'yyyymm') reporting_date,
                 ROUND(
                     (amount - sales_amt) * 100
                     / (LAG(amount)
                            OVER (
                                PARTITION BY state_name
                                ORDER BY TO_DATE(reporting_date, 'yyyymm') ASC
                            )),
                     2
                 )
                     amount
          FROM   geography) g,
         (SELECT   TO_DATE('01-' || 'APR' || '-' || '2009', 'DD-MON-YYYY') input_date FROM DUAL), state_info si
WHERE    g.reporting_date >=
             CASE
                 WHEN TO_NUMBER(TO_CHAR(input_date, 'mm')) >= 10
                 THEN
                     ADD_MONTHS(TRUNC(input_date, 'yyyy'), 9)
                 ELSE
                     ADD_MONTHS(TRUNC(input_date, 'yyyy'), -3)
             END
     AND g.reporting_date < LAST_DAY(input_date) + 1
     and si.state_abb = g.state_name
GROUP BY si.state_name, TRUNC(g.reporting_date, 'mm')
ORDER BY si.state_name, TRUNC(g.reporting_date, 'mm')
[+][-]07/08/09 03:12 AM, ID: 24802144Accepted Solution

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About this solution

Zones: Databases Miscellaneous, Oracle 9.x, PL / SQL
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Solution Provided By: yuching
Participating Experts: 3
Solution Grade: A
 
[+][-]07/02/09 11:30 AM, ID: 24766226Expert Comment

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[+][-]07/02/09 12:11 PM, ID: 24766622Author Comment

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[+][-]07/03/09 11:14 PM, ID: 24776032Expert Comment

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[+][-]07/08/09 03:12 AM, ID: 24802142Expert Comment

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