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    <p>You are not linking <code>TABLE4</code> (aliased as <code>L</code>)to any of the other tables in your list thereby creating a cartesian product. This is likely generating your duplicate records. <br /> Join <code>TABLE4</code> to one of the other tables and you should be good to go. <br /></p> <p>See Cartesian Product in: <a href="http://docs.oracle.com/cd/B14117_01/server.101/b10759/queries006.htm" rel="nofollow">http://docs.oracle.com/cd/B14117_01/server.101/b10759/queries006.htm</a></p> <p>This is also a good reason for using the SQL-92 syntax over the old SQL-96. It forces you to specify your table joins explicitly. <br /> I have rewritten your query using SQL-92 you only need to insert the join condition for TABLE4 and it should work for you.</p> <p>Hope it helps...</p> <pre><code>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 INNER JOIN table2 F ON (I.UNIQUEID = F.UNIQUEID) INNER JOIN table3 B ON (F.LINKID = B.LINKID) INNER JOIN table4 L ON (&lt;insert join clause here&gt;) WHERE I.ACTIVEFLG = 1 AND I.LATESTFLG = 1 AND I.FORMSTATUS IN ( 1, 3 ) AND B.SID = 2 AND B.DID IN ( 2, 3 ) AND ( F.EVENTDATE &gt; I.DVDD OR F.EVENTDATE &gt; I.MDD ) AND ( ( Trunc(F.EVENTDATE) - I.DVDD ) &gt; 2 OR ( Trunc(F.EVENTDATE) - I.MDD ) &gt; 2 ) AND I.FORMSTAGENAME IN ( 'Develop', 'Monitor' ) </code></pre>
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    1. POGetting duplicates in my oracle select query
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    1. CO:Thanks for the reply,Yeah i forgot to include one more join condition,I included it,but I don`t get any record now.
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    2. CORemove the where clause restrictions (not the joins!) one by one until you find the restriction that is preventing any records from being returned.
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    3. COOllie:I tried that way,when I removed the condition->((TRUNC(F.EVENTDATE)-I.DVDD) >2 OR (TRUNC(F.EVENTDATE)-I.MDD) >2 )...I got few records...Do you have any idea about this?
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