Question

Following is my Oracle select query for the result, but I’m getting duplicates which I don`t need. I think it’s hard to find for others,please give it a try.

SELECT I.EID                         EID,
       I.WT                          Title,
       I.RID                         RID,
       I.FORMNAME                    STAGENAME,
       I.FORMS                       STATUS,
       I.INPT                        Projects,
       To_char(I.DVDD, 'DD/MM/YYYY') DVDD,
       CASE
         WHEN B.SID = 2
              AND B.DID = 2 THEN Trunc(F.EVENTDATE) - I.DVDD
         ELSE NULL
       END                           DEVLAPSEDAYS,
       To_char(I.MDD, 'DD/MM/YYYY')  MDD,
       CASE
         WHEN B.SID = 2
              AND B.DID = 2 THEN Trunc(F.EVENTDATE) - I.MDD
         ELSE NULL
       END                           MONITORLAPSEDAYS,
       L.LDEID                       LEADEID
FROM   table1 I,
       table2 F,
       table3 B,
       table4 L
WHERE  I.ACTIVEFLG = 1
       AND I.LATESTFLG = 1
       AND I.FORMSTATUS IN ( 1, 3 )
       AND I.UNIQUEID = F.UNIQUEID
       AND B.SID = 2
       AND B.DID IN ( 2, 3 )
       AND ( F.EVENTDATE > I.DVDD
              OR F.EVENTDATE > I.MDD )
       AND ( ( Trunc(F.EVENTDATE) - I.DVDD ) > 2
              OR ( Trunc(F.EVENTDATE) - I.MDD ) > 2 )
       AND F.LINKID = B.LINKID
       AND I.FORMSTAGENAME IN ( 'Develop', 'Monitor' ) 

Answer 1

the best I do with this kind of information is to tell you to group your entire query:

   GROUP BY I.EID,I.WT,I.RID,I.FORMNAME,I.FORMS,I.INPT,
   To_char(I.DVDD, 'DD/MM/YYYY') DVDD,
   CASE
     WHEN B.SID = 2
          AND B.DID = 2 THEN Trunc(F.EVENTDATE) - I.DVDD
     ELSE NULL
   END,
   To_char(I.MDD, 'DD/MM/YYYY')  MDD,
   CASE
     WHEN B.SID = 2
          AND B.DID = 2 THEN Trunc(F.EVENTDATE) - I.MDD
     ELSE NULL
   END,
   L.LDEID