Help needed with condition based joins in pl\sql

Hi,
I need to get data from 6 tables,
Scenario 1 : I need to join 4 tables and join this result set to 5th table
Scenario2: resultset of join of 4 tables to 6th table
In this case how do i save the intermediate result set of 4 tables to use it in further joins.

Welcome to the forum.
Your question is broad.
http://tkyte.blogspot.com/2005/06/how-to-ask-questions.html
A more detailed example would help.
Mention your database version as well and see the FAQ http://forums.oracle.com/forums/help.jspa when it comes to posting formatted examples using the {noformat}{noformat} tag
However, i think using the WITH clause or a subquery ( a.k.a. inline view) is what you're looking for.
Do some searches on http://asktom.oracle.com to find many examples.
Also see:
http://www.oracle-base.com/articles/misc/WithClause.php
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/queries007.htm#sthref3193                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           

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