CacheConnect Support for Oracle Materialized View

Does TimesTen cacheconnect support caching Oracle Materialized views? It is my understanding that materialized views are really just Oracle tables under the covers.

hi Scheung,
I noted following description in Page40 of standard document 6.0.8 cacheconnect.pdf
Note: You can define a USERMANAGED cache group to include an Oracle
materialized view, but the cache group will be restricted, as described in “About
restricted cache groups” on page 49. Alternatively, you can create any type of
cache group to include an Oracle detail table for a materialized view.
and actually in 7.0.2, we can still create usermanaged cache group based on Oracle MV, but the above description disappears in 7.0.2 document. is it deprecated ?

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Support for 8i materialized views

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Can anyone pls explain in breif what does the new feature "discoverer 4.1 admn supports oracle 8i materialized views" mean???
I just have an idea what a materilazed view mean..but iam unable to comprehend how discoverer uses or supports this feature.
Pls help me
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While it is certainly true that a query with a UNION may be complex, it is relatively rare that it must be complex. The two things that make a UNION query complex in 10.1 (the criteria do tend to change in different releases) are
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I have a requirement as follows:
Requirement:
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--romas

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How to view SQL for a materialized view in SQL Developer (Oracle 11g R2)

Good Morning,
I am new to SQL Developer 3.1.07 and just installed it on a Windows 7 PC yesterday.
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[email protected]

1007420 wrote:
There's a materialized view for which I need to view (and eventually update) the SQL. The mat'lized view is in another schema, but my Oracle user does have access to the schema and to this particular mat'lized view. My user also has SELECT, INSERT, UPDATE, DELETE, DEBUG, and ALTER permissions. When I select (click on) the matl'ized view in the object tree on the left, a multi-tab window opens with information in the Columns, Indexes, Grants, Dependencies and Details tabs, but the SQL pane is blank. I don't know if there's some other GRANT that I need in Oracle, or if there's something else I need to do in SQL Developer to see the matl'ized view SQL.SQL*Developer can be tricky regarding what it shows for other schemas. I'm not sure what privileges you might need besides the one you listed except RESOURCE on the MV, or maybe CREATE ANY MATERIALIZED VIEW.
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Can OGG capture change data set from Oracle Materialized Views ?

Hi Gurus,
We have 3 DB .
1st one is for application . 2nd one is staging where data will come via Materialized Views i.e. we have MView log on DB_1 and have MView on DB_2 . MViews are getting refreshed incrementally everday .
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CGroup from Oracle Materialized view

Hi
I'm trying to create a User Manage Cgroup in timesten from a oracle mview....
When execute "create .. cache group command" this error message appears
Command> CREATE USERMANAGED CACHE GROUP "cg_ser_lin"
> AUTOREFRESH MODE INCREMENTAL INTERVAL 10 MINUTES
> STATE PAUSED
> FROM
"MARTINEL"."v_SER_LIN" (
> "MARTINEL"."v_SER_LIN" (
"NUM_LINE" CHAR(12 BYTE) NOT NULL,
"COD_serv" CHAR(10 BYTE) NOT NULL,
> "NUM_LINE" CHAR(12 BYTE) NOT NULL,
> "COD_serv" CHAR(10 BYTE) NOT NULL,
> "fec_term" date not null,
> PRIMARY KEY("NUM_LINE","COD_serv"), READONLY
>
> );
5120: No matching unique index with not null columns, unique key constraint with not null columns, or primary key constraint on table MARTINEL.V_SER_LIN, cache operations are restricted
5168: Restricted cache groups are deprecated
5126: A system managed cache group cannot contain non-standard column type mapping
The command failed.
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create materialized view v_ser_lin
parallel 3
nologging
refresh complete
start with sysdate next SYSDATE + 30/1440
as
select /*+ index (s ser_pk)*/sl.num_line, s.cod_serv,SL.FEC_INIC,SL.FEC_TERM
from servicios s, ser_lin sl
where
s.cod_serv = sl.cod_prod
and
s.flg_cons='S'
and
s.flg_switch='S';

TimesTen does not currently support caching of Oracle materializesed views. The only objects that a cache group can be defined on are actual tables.
Also, any Oracle table that will be cached must have a primary key defined in Oracle.
Chris

Can Oracle materialized view be used as crystal report datasource

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Can we use materialized view created in Orace 10g database as the data source of crystal reports.
I'm using Crystal reports Server 2008 V1 version. I'm unable to find the materialized view under my data connection. I can see only tables, static views and stored procedures.
Is there a way by which I can run my reports against a materialized view created in Oracle.
Thanks
Thomas EL

Hi Thomas,
Rather than doing all of this work around to access multiple databases/servers why not create a stored procedure to do all of this for you? Search the notes area for samples on how/what CR requires to use a SP in Oracle.
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Oracle Materialized View replication

I am perplexed by the fact that I have a slave sight full of MV's and a refresh group created to refresh with the Master site.
When I refresh, however, the master site updates all of the tables (MV's) except one within my refresh group and all the changes I make on the MV site replicates to the Master site including this ONE MV.
Where the problem lies is that the one MV does not accept any changes from the Master??
Help!!

Hello,
I'm sorry to answer you so late.
I could find an interesting Notes on My Oracle Support which gives a solution to this problem.
Please, have a look on the following Notes:
Complete refresh of a materialized view fails with ORA-02266 [ID 270456.1]In fact, you may have to add another MV to the Refresh Group so as to avoid the Truncate operation during the Refresh.
If possible, you may also try a Fast Refresh (there's no Truncate in this case), but you'll need MV Log.
Hope this help.
Best regards,
Jean-Valentin
Edited by: Lubiez Jean-Valentin on May 19, 2010 11:44 PM

Oracle Materialized view tables not getting refreshed automatically.

At Destination:--
CREATE MATERIALIZED VIEW PROG_MEDIA
TABLESPACE ONA_TS1
BUILD IMMEDIATE
REFRESH FAST with rowid
START WITH SYSDATE
NEXT SYSDATE+1/96
AS (select /*+ PARALLEL(a,6) */ * from PROG_MEDIA@onair a);
exec dbms_mview.refresh('PROG_MEDIA','C');
At Source:--
CREATE MATERIALIZED VIEW LOG ON ONAIR.PROG_MEDIA
TABLESPACE MVLOG
WITH ROWID;
Fired manually:--
13:00:43 SQL> exec dbms_mview.refresh('PROG_MEDIA','C');
PL/SQL procedure successfully completed.
At source:--
13:18:35 SQL> select PROG_MEDIA_ID,PROG_MEDIA_NAME from PROG_MEDIA where PROG_MEDIA_ID='102226';
PROG_MEDIA_ID
PROG_MEDIA_NAME
102226
test
At Destination:--
14:03:28 SQL> select PROG_MEDIA_ID,PROG_MEDIA_NAME from PROG_MEDIA where PROG_MEDIA_ID='102226';
PROG_MEDIA_ID PROG_MEDIA_NAME
102226 UTSAV-5-162077
JOB LOG_USER THIS_DATE LAST_DATE_TIME NEXT_DATE_TIME INTERVAL FAILURES WHAT
242 ONAIR 17-05-11 14:17:24 SYSDATE+1/96 7 dbms_refresh.refresh('"ONAIR"."PROG_MEDI
A"');
242 ONAIR 17-05-11 14:32:25 SYSDATE+1/96 8 dbms_refresh.refresh('"ONAIR"."PROG_MEDI
A"');
1> I have scheduled this refresh job for every 15mins, but its not getting executed. Also my job_queue_process is '20'. Whenever i execute it manually it get's refresh.
2> I can schedule a cron for the same for every 15mins but i really dont want to do it.
Kindly help me out.

Hi,
I have created MV_CAPABILITIES_TABLE & executed below commands:--
17:56:54 SQL> EXECUTE DBMS_MVIEW.EXPLAIN_MVIEW ('"ONAIR"."PROG_MEDIA"');
PL/SQL procedure successfully completed.
17:57:26 SQL> SELECT capability_name, possible, SUBSTR(related_text,1,8)
17:57:27 2 AS rel_text, SUBSTR(msgtxt,1,60) AS msgtxt
17:57:27 3 FROM MV_CAPABILITIES_TABLE
17:57:27 4 ORDER BY seq;
CAPABILITY_NAME P REL_TEXT MSGTXT
PCT N
PCT N
REFRESH_COMPLETE Y
REFRESH_COMPLETE Y
REFRESH_FAST Y
REFRESH_FAST Y
REWRITE N
REWRITE N
PCT_TABLE N PROG_MED relation is not a partitioned table
PCT_TABLE N PROG_MED relation is not a partitioned table
REFRESH_FAST_AFTER_INSERT Y
REFRESH_FAST_AFTER_INSERT Y
REFRESH_FAST_AFTER_ONETAB_DML Y
REFRESH_FAST_AFTER_ONETAB_DML Y
REFRESH_FAST_AFTER_ANY_DML Y
REFRESH_FAST_AFTER_ANY_DML Y
REFRESH_FAST_PCT N PCT is not possible on any of the detail tables in the mater
REFRESH_FAST_PCT N PCT is not possible on any of the detail tables in the mater
REWRITE_FULL_TEXT_MATCH N PROG_MED mv references a remote table or view in the FROM list
REWRITE_FULL_TEXT_MATCH N PROG_MED mv references a remote table or view in the FROM list
REWRITE_FULL_TEXT_MATCH N query rewrite is disabled on the materialized view
REWRITE_FULL_TEXT_MATCH N query rewrite is disabled on the materialized view
REWRITE_PARTIAL_TEXT_MATCH N materialized view cannot support any type of query rewrite
REWRITE_PARTIAL_TEXT_MATCH N materialized view cannot support any type of query rewrite
REWRITE_PARTIAL_TEXT_MATCH N query rewrite is disabled on the materialized view
REWRITE_PARTIAL_TEXT_MATCH N query rewrite is disabled on the materialized view
REWRITE_GENERAL N materialized view cannot support any type of query rewrite
REWRITE_GENERAL N materialized view cannot support any type of query rewrite
REWRITE_GENERAL N query rewrite is disabled on the materialized view
REWRITE_GENERAL N query rewrite is disabled on the materialized view
REWRITE_PCT N general rewrite is not possible or PCT is not possible on an
REWRITE_PCT N general rewrite is not possible or PCT is not possible on an
PCT_TABLE_REWRITE N PROG_MED relation is not a partitioned table
PCT_TABLE_REWRITE N PROG_MED relation is not a partitioned table
34 rows selected.
Elapsed: 00:00:00.09
What to be done next?
Also i fired the job manually by:--
17:38:02 SQL> set serveroutput on
17:39:45 SQL> EXEC DBMS_JOB.RUN(242);
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.48

Oracle Materialized view with xmltype data type

this the table having in db1 i need to create materialized view db2 for this table i have followed below steps..
create table WORKSHEETMASTER
METHODID NUMBER(10),
WORKSHEETCODE VARCHAR2(50 BYTE) not null,
WORKSHEET SYS.XMLTYPE);
create materialized view log on db1.WORKSHEETMASTER;
db2
CREATE MATERIALIZED VIEW WORKSHEETMASTER
REFRESH FAST ON DEMAND
AS
SELECT METHODID,
WORKSHEETCODE,
worksheet FROM db1.WORKSHEETMASTER@DBLINK;
when i was create materialized view above script in db2 iam getting error
ORA-22992:cannot use LOB locators selected from remote tables
like this when remove the worksheet column created succesfully may know how achieve this problem
my database version 11g iam searched some sceniour not full filled
need for help
thanks

this the table having with in DB1
create table WORKSHEETMASTER
METHODID NUMBER(10),
WORKSHEETCODE VARCHAR2(50 BYTE) not null,
WORKSHEET SYS.XMLTYPE,
WORKSHEETID NUMBER primary key,
CREATEDDATE DATE,
CREATEDBY VARCHAR2(50 BYTE),
WORKSHEETNAME VARCHAR2(50 BYTE),
UPDATEDDATE DATE,
UPDATEDBY VARCHAR2(50 BYTE),
NOOFROWS NUMBER(3),
NOOFCOLUMNS NUMBER(3),
WORKSHEETTYPE CHAR(1 BYTE),
SUBSTRATEUSED VARCHAR2(50 BYTE),
STATUS NUMBER(1),
APPROVEDBY VARCHAR2(50 BYTE),
APPROVED CHAR(1 BYTE) default 'N',
APPROVALREMARKS VARCHAR2(100 BYTE),
LNG_WORKSHEETNAME VARCHAR2(50)
iam trying to create materailzed view in db2
create materialized view WORKSHEETMASTER
refresh fast on demand
as
SELECT METHODID,
WORKSHEETCODE,
WORKSHEETID,
worksheet,
CREATEDDATE,
CREATEDBY,
WORKSHEETNAME,
UPDATEDDATE,
UPDATEDBY,
NOOFROWS,
NOOFCOLUMNS ,
WORKSHEETTYPE,
SUBSTRATEUSED,
STATUS,
APPROVEDBY,
APPROVED,
APPROVALREMARKS,
LNG_WORKSHEETNAME FROM db1.WORKSHEETMASTER@DBLINK; --remote database
iam creating above scriprt in db2 getting error this my total script

CacheConnect Support for Oracle Materialized View

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