WITH clause, Oracle, UNION problem

Question

I have a table with two fields, SYSTEM and DATEOPENED.  It's basically a log of events.
For each row, I need to calculate how much time has elapsed between one row and the next for the same system.
Basically, when I execute this directly against the database (replacing parameters with actual TO_DATE('...','...')), this works flawlessly.
The problem when I run this in Crystal Reports is that the WHERE clause of the CUMULATIVE portion of the UNION is completely ignored.  I get ALL the data from the database for the CUMULATIVE.
I inverted both portions of the UNION (DISCRETE first and CUMULATIVE second), which had the result of completely removing the CUMULATIVE portion of the result set.
I'm using Crystal Reports 11.5.0.313 (XI R2)
The query looks like this:
WITH ACCT_DATA AS (
  SELECT SYSTEM, Round(DateOpened,'IW') WeekDate, Sum(IsUDRWithinThreshold) CNT_WITHINTHRESHOLD, Count(1) CNT
  FROM (
    SELECT SYSTEM, DateOpened, (
      CASE
        WHEN SYSTEM='system1' AND ((Lead (DateOpened,1) over (PARTITION BY SYSTEM ORDER BY SYSTEM, DateOpened))-DateOpened)*24 < 5 THEN 1
        WHEN SYSTEM='system2' AND ((Lead (DateOpened,1) over (PARTITION BY SYSTEM ORDER BY SYSTEM, DateOpened))-DateOpened)*24 < 5 THEN 1
        WHEN SYSTEM='system3' AND ((Lead (DateOpened,1) over (PARTITION BY SYSTEM ORDER BY SYSTEM, DateOpened))-DateOpened)*24 < 9 THEN 1
        ELSE 0
      END
    ) IsUDRWithinThreshold
    FROM  ACCT_FILES
    WHERE SYSTEM IN ('system1','system2','system3')
    AND Round(DateOpened,'YYYY')=Round({?ToDate},'YYYY')
  GROUP BY SYSTEM, Round(DateOpened,'IW')
  ORDER BY SYSTEM, Round(DateOpened,'IW')
SELECT 'CUMULATIVE' DATA_TYPE, d1.SYSTEM, d1.WeekDate, Sum(d2.CNT_WITHINTHRESHOLD) CNT_WITHINTHRESHOLD, Sum(d2.CNT) CNT
FROM ACCT_DATA d1 INNER JOIN ACCT_DATA d2 ON d1.SYSTEM=d2.SYSTEM AND d2.WeekDate<=d1.WeekDate
WHERE d1.WeekDate BETWEEN {?FromDate} AND {?ToDate}
GROUP BY d1.SYSTEM, d1.WeekDate
UNION
SELECT 'DISCRETE' DATA_TYPE, SYSTEM, WeekDate, CNT_WITHINTHRESHOLD, CNT
FROM ACCT_DATA
WHERE WeekDate BETWEEN {?FromDate} AND {?ToDate}
ORDER BY DATA_TYPE, SYSTEM, WeekDate

Answer 1

Hello,
First, you can't use that SQL directly in Crystal Reports unless you are using a Command object. In which case CR does not modify the SQL at all. It may be due to multiple results sets in which case CR will have problems logically with this type of SQL.
what happens if you use SQLPlus to test the SQL and results?
Also, before doing any of that you are using the original release of Crystal Reports XI R2. Go to the Businessobjects tab above and download SP4, full build. Easier than applying all of the incremental patches but it does require you to un-install CR first.
Test again, if you still get the same problem then do more debugging.
Also note in you reply what DB driver you are using, ODBC, OLE DB etc., and who's driver, Oracle's DataDirect, Microsoft etc.?
Thank you
Don