Help materialized view

Question

Hi,
i need to create materialized fast refresh view from 3 base tables.I was tried but below error coming,since i informed to my manger not possible.but his not agrees.Could somone help to create materialized view with fast refresh
ORA-12015:cannot create a fast refresh materialized view from a complex query
create materialized view MV_DGN_TEST_SESSION                                                            
refresh start with trunc(sysdate)+4/24                                                                  
next trunc(sysdate+1)+4/24                                                                              
as                                                                                                      
WITH    bad_domain_groups as                                                                            
    SELECT DISTINCT tsd.domain_group_id                                                                 
       FROM test_session_detail tsd,                                                                    
      test_session ts             ,                                                                     
      test_detail td                                                                                    
      WHERE tsd.test_session_id     = ts.test_session_id                                                
    AND tsd.test_detail_id          =td.test_detail_id                                                  
    AND ts.test_session_status_id  = 4                                                                  
    AND td.test_type_id            =8                                                                   
    AND tsd.test_session_status_id <>  3                                                                
    AND tsd.domain_group_id IS NOT NULL                                                                 
select a.test_session_id,b.test_session_detail_id,b.test_detail_id,a.completion_date,a.institution_id,  
b.score,b.domain_group_id                                                                               
   FROM test_session a ,                                                                                
    test_session_detail b,                                                                              
    test_detail c                                                                                       
    , bad_domain_groups    bad                                                                          
    WHERE a.test_session_id     =b.test_session_id                                                      
  AND a.test_session_status_id IN (3,4)                                                                 
  AND b.test_detail_id          =c.test_detail_id                                                       
  AND c.test_type_id             IN (8)                                                                 
  AND b.domain_group_id     = bad.domain_group_id (+)                                                   
  AND bad.domain_group_id    IS NULL                                                                    
  AND b.domain_group_id is not null;                                                                     Edited by: user575115 on Nov 18, 2009 11:17 PM

Answer 1

Docs say:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/statements_6002.htm#i2106785 :
"Restrictions on the Defining Query of a Materialized View The materialized view query is subject to the following restrictions:
* The defining query of a materialized view can select from tables, views, or materialized views owned by the user SYS, but you cannot enable QUERY REWRITE on such a materialized view.
* You cannot define a materialized view with a subquery in the select list of the defining query. You can, however, include subqueries elsewhere in the defining query, such as in the WHERE clause.
* Materialized join views and materialized aggregate views with a GROUP BY clause cannot select from an index-organized table.
* Materialized views cannot contain columns of datatype LONG.
* You cannot create a materialized view log on a temporary table. Therefore, if the defining query references a temporary table, then this materialized view will not be eligible for FAST refresh, nor can you specify the QUERY REWRITE clause in this statement.
* If the FROM clause of the defining query references another materialized view, then you must always refresh the materialized view referenced in the defining query before refreshing the materialized view you are creating in this statement.
If you are creating a materialized view enabled for query rewrite, then:
* The defining query cannot contain, either directly or through a view, references to ROWNUM, USER, SYSDATE, remote tables, sequences, or PL/SQL functions that write or read database or package state.
* Neither the materialized view nor the master tables of the materialized view can be remote.
If you want the materialized view to be eligible for fast refresh using a materialized view log, then some additional restrictions may apply."
Try to reconstruct the query without the WITH-clause.