ORACLE SQL Group Stále dává duplikáty

Pokud je CREATIONDATE datový typ data, obsahuje prvek času až na sekundy. Je vysoce nepravděpodobné, že ID incidentu, které hledáte, bude mít přesný čas. Naformátujte datum na ISO Date a GROUP BY bude ignorovat časové rozdíly.

SELECT TO_CHAR(MIN(I.INCIDENTID))      AS "Incident ID",
          to_char(I.CREATIONDATE, 'yyyy-mm-dd') AS "Creation Date",
          M.MESSAGESUBJECT                AS "Email Subject",
          MO.IPADDRESS                    AS "IP Address",
          MO.DOMAINUSERNAME               AS "Login ID",
          MO.ENDPOINTMACHINENAME          AS "Computer Name"
   FROM        MESSAGE M 
   LEFT JOIN   INCIDENT I 
   ON          M.MESSAGESOURCE = I.MESSAGESOURCE 
   AND         M.MESSAGEID = I.MESSAGEID
   AND         M.MESSAGEDATE    = I.MESSAGEDATE 
   LEFT JOIN   MESSAGEORIGINATOR MO
   ON          M.MESSAGEORIGINATORID = MO.MESSAGEORIGINATORID
   LEFT JOIN   MESSAGEEXT ME
   ON          ME.MESSAGEID = M.MESSAGEID
   LEFT JOIN   INCIDENTSTATUS S
   ON          S.INCIDENTSTATUSID = I.INCIDENTSTATUSID
   LEFT JOIN   CUSTOMATTRIBUTESRECORD C
   ON          C.CUSTOMATTRIBUTESRECORDID = I.CUSTOMATTRIBUTESRECORDID                    
   GROUP BY    to_char(I.CREATIONDATE, 'yyyy-mm-dd') 
               M.MESSAGESUBJECT,
               MO.IPADDRESS,
               MO.DOMAINUSERNAME,
               MO.ENDPOINTMACHINENAME