BC4J, 1012: Cannot create view over 2 different EOs

Hi,
a strange thing is happening here:
I have EOs in different packages. I want to create a join-view over these EOs in one of the packages.
For some or other reason i cannot have the 2 EOs together. I can add either one of them with any other EO in the project but not these specific 2 EOs.
Can someone from oracle please tell me what validations are done in the "Create View" - wizard when adding a EO to participate in the view so that i can check the code for irregularities? There is no error message - it just refuses to go to the "selected" window.
Any ideas PLEASE?
Thanks.

Fixing the FK name in the association.xml file, bouncing JDev(since JDev doesn't refresh internal state when a xml file changes externally), fixes the problem.

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Hi,
user590978 wrote:
Hi Guru's,
I have two different schema in the same DB.
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which created from view in schema1 and insert the data into different table from trigger when insert happen on view.
first of all , is it possible?I'm not sure I understand you here, either.
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Kenny_I

Hi Kenny_I,
As per my understanding, I think this issue may be caused by your colleague has no permission to access to data source 'EntityDataSource', it is a Kerberos issue. When report server uses ‘Windows authentication (integrated) or SharePoint user’ as the credentials
to access the data source 'EntityDataSource', the authentication would be failed. So we should try to check if the issue is in this scenario. If in this case, we should change the credentials to stored credentials.
Besides, if we don’t configure C2WTS Service Account to use Local System, it needs the following local policy rights:
Act as part of the operating system.
Impersonate a client after authentication.
Log on as a service.
For more details, please refer to the following blog:
http://www.codeovereasy.com/2014/01/powerview-report-fails-no-credentials-are-available-in-the-security-package/
Hope this helps.
Thanks,
Katherine Xiong
Katherine Xiong
TechNet Community Support

ORA-12015: cannot create a fast refresh materialized view from a complex qu

BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
PL/SQL Release 11.2.0.1.0 - Production
CORE    11.2.0.1.0      Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - ProductionI'm trying to create a fast refresh materialized view that uses a column of xmltype. The problem is I cannot create an MV log that accounts for the xmltype column. I tried excluding it and got the above error. Is there another way I can incrementally update a materialized view where I don't have to do a COMPLETE refresh or use FAST refresh?
CREATE TABLE "DAS_DESC"."AUTHORITY_TEST"
    "NAID"      NUMBER(20,0) NOT NULL ENABLE,
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CREATE TABLE "DAS_DESC"."AUTH_ASSC_TEST"
    "NAID"    NUMBER(20,0),
    "P_NAID" NUMBER(20,0),
    "REL_TYPE"    VARCHAR2(25 BYTE),
    "XML_DATA" "SYS"."XMLTYPE"
CREATE
MATERIALIZED VIEW person_mv
AS
SELECT p.naid
      , p.auth_type
      , INSERTCHILDXML
          p.xml_data                 -- Parent XML Column
        , '//*[contains(local-name(), ''person'')]' --XPATH to Person
        , 'nonPreferredHeadingArray'                -- Value for new child element
        (                                                       -- Sub query for injecting new variant person array
          SELECT XMLELEMENT
            "nonPreferredHeadingArray"
          , XMLAGG -- Aggregator for Variant Persons Array
              XMLELEMENT
                "variantPersonName"                    -- Wrapper for each entry in array
              , extract(a.xml_data,'*/*')
          FROM auth_assc_table -- Link table
          WHERE a.p_naid = p.naid
      ) AS XML_DATA
FROM authority p -- Parent table
WHERE p.auth_type = 'Person';The views are created fine and they work perfectly for what we need. The problem is the refresh when we edit the base tables. Ideally, it should take a couple seconds. Right now, it takes a couple minutes. XMLTYPE is one problem and the Complex Query exception is the other. If there is a work-around for fast refresh, please let me know. Greatly appreciated.

jjmdb wrote:
I'm trying to create a fast refresh materialized view that uses a column of xmltype. The problem is I cannot create an MV log that accounts for the xmltype column. I tried excluding it and got the above error. Is there another way I can incrementally update a materialized view where I don't have to do a COMPLETE refresh or use FAST refresh? Besides XMLTYPE column, your MV definition has a subquery which prevents it from being fast refreshable.
I could not find any specific reference in documentation about restriction on XMLTYPE (or CLOB) columns but it seems logical that oracle will not be able to keep track of changes to binary data. What does DBMS_MVIEW.EXPLAIN_MVIEW generate for your MV definition? That should tell you which all conditions (for FAST REFRESH) your MV violates. Since you can not create a MV LOG to include XMLTYPE column, it will not be possible to create a FAST REFRESHABLE MV that includes the XMLTYPE column.
I am afraid there is not much you can do here unless you are prepared to change the way data is stored in your base tables. If you can store data in base tables using standard data types instead of binary/XML storage, you might be able to create a FAST REFRESHABLE MV.

ORA-12015: cannot create a fast refresh materialized view from a complex q

Hi,
I'm facing very strange problem. Please help me why this error is coming
I'm creating a simple materialized view, but it is giving below error since this is simple select * from.
CREATE MATERIALIZED VIEW EFMS.MS_TASK
BUILD IMMEDIATE
REFRESH FAST
START WITH SYSDATE
NEXT (SYSDATE + 1/24)
WITH ROWID
AS
SELECT * FROM MS_TASK@efms_link;
SELECT * FROM MS_TASK@efms_link
ERROR at line 8:
ORA-12015: cannot create a fast refresh materialized view from a complex query
CREATE MATERIALIZED VIEW LOG ON MSDBO.MS_TASK
TABLESPACE DBOR_MVLOG
PCTUSED 0
PCTFREE 60
INITRANS 20
MAXTRANS 255
STORAGE (
INITIAL 64K
MINEXTENTS 1
MAXEXTENTS UNLIMITED
PCTINCREASE 0
BUFFER_POOL DEFAULT
NOCACHE
NOLOGGING
PARALLEL ( DEGREE 2 INSTANCES 1 )
WITH ROWID, PRIMARY KEY
EXCLUDING NEW VALUES;

1º
Not is a best practice to use 'select *'
2º
ORA-12015: cannot create a fast refresh materialized view from a complex query
Cause: Neither ROWIDs and nor primary key constraints are supported for complex queries.
Action: Reissue the command with the REFRESH FORCE or REFRESH COMPLETE option or create a simple materialized view.
Then you have to change REFRESH FAST or create a primary key in MS_TASK@efms_link to avility fast refresh.
. :-) any help with my english is wellcome :-) .

ORA-12015: cannot create a fast refresh materialized view from a complex

Hi All,
I am trying to create materialized view but i got a error ORA-12015: cannot create a fast refresh materialized view from a complex query.
Regards,
narayana

Hi,
Please see if (Note: 179466.1 - Diagnosing ORA-12015 fast refresh materialized view / complex queries) helps.
Regards,
Hussein

BC4J, 1012: Cannot create view over 2 different EOs

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