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Editorial Team
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Asked: 2026-06-10T10:47:09+00:00

Using PL/SQL on Oracle 11g How can I write query to return desired result?

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Using PL/SQL on Oracle 11g How can I write query to return desired result? I want sum of detail using the expiry_date of Licenses table. All transactions in each group by must occur before the expiry_date.

Licenses

license_type vendor_code  funding_code  license_expiry_date 
---------------------------------------------------------------------------
CAB           1001        XR1           07/09/2011 4:23:18 pm
CAB           1002        XR2           07/06/2012 10:22:16 am

License_detail
register_period  license_type   active_date  fee  
---------------------------------------------------------------------
2012A            CAB             06/01/2011  25.00
2012A            CAB             07/01/2011  25.00
2012A            CAB             08/01/2011  30.00
2012A            CAB             09/01/2011  30.00
2012A            CAB             07/10/2012  40.00
2012A            CAB             07/11/2012  40.00

Desired Result

Period    Type   Funding   Vendor  TotalFees Expiry_Date
---------------------------------------------------------
2012A      CAB   XR1       1001     50.00    07/09/2011 4:23:18 pm
2012A      CAB   XR2       1002     60.00    07/06/2012 10:22:16 am
2012A      CAB   <null>    <null>   80.00    <null>
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1 Answer

  1. Editorial Team

    What you need is an effective date and an end date for the licenses. You can then join this into the license detail, with something like this:

    select ld.period, ld.type, l.funding_code, l.vendor_code, sum(fee) as fee,
       l.license_expiry_date
from license_detail ld left outer join
     (select l.*,
             lead(license_expiry_date, 1) over (partition by license_type
                                                order by license_expiry_date)
                                               ) as nextdate
      from licenses l
     ) l
     on ld.license_type = l.license_type and
        ld.active_date >= coalesce(license_expiry_date, ld.active_date) and
        ld.active_date < coalesce(nextdate, to_date('9999-01-01', 'yyyy-mm-dd'))
group by ld.period, ld.type, l.funding_code, l.vendor_code, l.license_expiry_date
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