Materialized view Eror

Similar Questions

• ORA-12028: type of materialized view is not supported by the main site

  Hi guys!

  We face a problem these days about the materialized view.

  We have upgraded database version 9.2.0.7 directly to 10.2.0.5 (RHEL4 x 86) on the same host. Database uses the driver dg4odbc to connect with remote SQL Server 2012 through data binding called MIKSERI. Our developer team would like to have replicated SQL server table data side Oracle using the materialized view.

  They created Materialized view, but it is not at all to refresh the data. I tried to study a little bit, and whenever I try to change the view anyway I hit error:

  ORA-12028: view type is not supported by the master site materialized @ 'MIKSERI '.

  ORA-06512: at line 22

  I looked at the solutions proposed and discovered that it is maybe the compatible database parameter, so I changed from previous 9.2.0.0.0 to 10.2.0.1.0 but still no luck. Just to emphasize this database is of course different clone of production to a different database, with db name retained and other parameters, but on another host computer and listening port. I even try to change global name, but still no luck.

  Main problem is that refresh the work does not at all. To be more precise, we have created MV on the side of the Oracle and FULL Refresh should be done every 3 minutes. MV uses HS db link to the sql server database. During the creation of MV, we can see currently given to sql server, but the problem is that we cannot do MV to refresh every 3 minutes. When I try to change MV and put the refresh interval I get above error.

  Any kind of help would be greatly appreciated,

  Thank you

  I found the reason why my MV update jobs failed, job_queue_processes parameter was equal to 0. I change this setting and now works fine.

  Thank you for your time!

• What is the best way to change a column type in the materialized view?

  Hello my dear friends,.

  I want to change a column type in a materialized view. VARCHAR2 NUMBER, so what do you recommend? What is the best way to do it?

  Thank you

  You can not change the data type of the column while there are data in the MV, so you might as well give up and recreate the MV with a TO_CHAR() around the column in question in the application of MV to get the data exactly as you want (be sure to include an appropriate format mask). That said, I'm fighting to think reasonable grounds to make such a change.

• A drop materialized view error

  I tried to drop two materialized views (I want to drop one and the other as a test to make sure that the behavior was consistent) with SQL Developer today, using the GUI, not the window of SQL command. When I did this, Developer SQL with these MVs among the tables, he tried to run a 'DROP TABLE' rather than a 'DROP MATERIALIZED VIEW' statement and an ugly error message came up with that and of course she didn't. Is this a bug that needs to be addressed? Or maybe that it is already identified and addressed in a future version?

  Earl

  Looks like you're down the underlying table, not the materialized view.   If you have a my_mv of materialized view, there is also a table called my_mv.

  You must drop the materialized since the Materialized View node in Object Explorer view.

• Materialized views Refresh method and refresh option

  Hi Experts,

  According to the docs, If the MV contains the following, MV is considered complex. I wonder is there any view data dictionary that indicates the type of MV? Because is very easy to the candidate a complex type mv. Because many queries contains the properties below.

  http://docs.Oracle.com/CD/B28359_01/server.111/b28326/repmview.htm#i52501

  http://docs.Oracle.com/CD/B28359_01/server.111/b28313/basicmv.htm

  Specifically, a materialized view is considered complex if the materialized view definition query contains:

  • A CONNECT BY clause
  • An INTERSECT , MINUS , or UNION ALL operation
  • he DISTINCT or UNIQUE keyword
  • In some cases, an aggregate function, although it is possible to have an aggregation function in the query definition and always have a simple materialized view
  • In some cases, joins other than those in a subquery, although it is possible to have joins in the definition to interrogate and still have a simple materialized view
  • In some cases, a UNION operation

  
  

  After that I kept going to read that I learned that when a VM is created, the refresh mode is specified according to the type of the MV. That means, using ON-DEMAND refresh mode is widespread. The documentation mentions that there isa also refresh option. My question is, is it possible to specify

  ON REQUEST and FAST together?

  Also, what are the differences between FULL and FAST. Ends truncate the table and fill it up again?

  ON COMMIT

  Refresh product automatically when a transaction which changed one of the paintings of the materialized view's retail is committed. This can be specified as the materialized view is quickly updatable (in other words, not complex). The ON COMMIT privilege is required to use this mode.

  ON DEMAND

  Refresh occurs when a user manually executes one of the procedures available refresh contained in the DBMS_MVIEW package ( REFRESH , REFRESH_ALL_MVIEWS , REFRESH_DEPENDENT ).

  COMPLETE	Refreshes and recalculating the materialized view query definition.
  FAST	Applies incremental changes to refresh the materialized view using the information recorded in the papers of the materialized view, or an SQL * Loader direct-path access or a partition maintenance operation.

  FORCE

  Applies FAST update if possible; otherwise, it applies COMPLETE Refresh.

  NEVER

  Indicates that the materialized view will not be updated with updating mechanisms.

  Select * from version of v$.

  Oracle Database 11 g Release 11.2.0.4.0 - 64 bit Production

  Thank you

  Çaglar wrote:

  ...

  Also, what are the differences between FULL and FAST. Ends truncate the table and fill it up again?

  ...

  Thank you

  I just want to answer the truncated question. Seems that nobody covered that yet.

  Answer: It depends.

  If you do a full refresh, then the default is to use ATOMIC_REFRESH = TRUE.

  This means that the update is done via an insert, delete , and ... Select.

  You can change it to ATOMIC_REFRESH = FALSE (parameter dbms_mview.refresh).

  This means that is a TRUNCATE and insert a ... Select with APPEND peak (path direct insert).

  Refresh if Atomic = FALSE is considerably faster than the default. Also way less Archives of newspapers are written.

  The downside is however that, during the update the MV is empty, is no longer an atomar operation!

  See also Oracle documentation: http://docs.oracle.com/cd/B28359_01/appdev.111/b28419/d_mview.htm#i997194

• What is 'Table of container' in materialized views

  Hello

  What is meant by ' Container Table ' in materialized views?

  "Materialized view" (MV) is, in fact, a table, rather than a view.

  The term MV is used of the 9i database. In the 7 and 8 databases is the term 'snapshot' (to make things more complicated, the MV concept appeared in the 8i database, but in the context of the data warehouse).

  When you create a MV, for example. using the:

  Create materialized view emp_mv

  full refresh on demand

  as select empno, ename from EMP

  /

  you have, in fact, have created two objects in the data dictionary:

  Select object_name, object_type

  from user_objects

  where object_name = 'EMP_MV. '

  order by 1, 2;

  OBJECT_NAME OBJECT_TYPE

  --------------------- -------------------

  MATERIALIZED VIEW EMP_MV

  EMP_MV TABLE

  You can remove MV and a table of container:

  drop materialized view emp_mv;

  or you can delete only MV, preserving a table containing:

  Let fall the materialized view emp_mv maintain the table;

  Kind regards

  Zlatko

• What is materialized views named?

  Hi there;

  When I read the documentation below, I met a sentence.

  http://docs.Oracle.com/database/121/DWHSG/basicmv.htm#i1007299

  Materialized views with subqueries or views named in the DE clause can be fast refreshed as points of view can be completely merged.

  What is the point of view named? Thanks in advance.

  Hello

  Named views are normal views created by running ' create view abc as select... from...» ».

  Kind regards

  Bashar

• MATERIALIZED View Log Index Tablespace

  Is anyone aware of the syntax or a framework to be able to specify the index of a materialized view of the journal storage space?

  We chunk our objects by tablespace - index, tables, CLOB.

  Creating a materialized view log and specifying the storage space in which it should be created created the mv log in the correct location, but the index that is created uses the default tablespace for the user.

  And Yes, I Googled it. LMGTFY

  create materialized view log on MY_TEST tablespace my_tablespace ;
  

  select table_name, tablespace_name
    from user_tables
   where table_name like 'MLOG%';
  

  TABLE-NAME	TABLESPACE_NAME
  MLOG$ _MY_TEST	MY_TABLESPACE

  select table_name, index_name, tablespace_name
    from user_indexes
   where table_name like 'MLOG%';
  

  TABLE-NAME	INDEX_NAME	TABLESPACE_NAME
  MLOG$ _MY_TEST	I_MLOG$ _MY_TEST	USERS

  I found these documents:

  Index on MLOG$ (materialized view Log): difference in behavior between 11.2.0.3 and 11.2.0.4 (Doc ID 1959657.1)

  Materialized View Log (Mlog$) Index not created in its default Tablespace (Doc ID 1959658.1)

  I guess you are running 11.2.0.4, right?

  In previous versions, no index has been created automatically for the journal of MV.

  Kind regards

  Bashar

• What is a materialized view?

  If I read oradocs on flashback instructions table and it mentions

  When you delete a table, all the newspapers view materialized, defined on the table are also deleted, but are not placed in the Recycle Bin. Therefore, the materialized view logs cannot be flashed back as well as the table

  (http://docs.oracle.com/cd/B28359_01/server.111/b28286/statements_9012.htm#SQLRF01802)

  
  

  then I went to oradocs for the view materialized and read the first half logs.

  http://docs.Oracle.com/CD/B19306_01/server.102/b14200/statements_6003.htm

  Now, I know what makes a materialzed view log.

  is a materialized view as a point of view however... ?

  No, it isn't.

  A materialized view is basically a query with its 'materialized' or stored in a table results. A MV can be used by Oracle in a manner transparent re - write a query to be faster.

• Problem with a complete refresh materialized view when using rownum

  Hi all

  I had a problem with rownum when complete using Refresh

  I use rownum when you create the materialized view, and this is the generation properly. But the question was when I even refreshing, rownum was not get sorted in ascending order.

  anyone encountered this scenario

  rownum is determined as the line came out, also "order by rownum" does absolutely nothing.

  http://docs.Oracle.com/CD/B19306_01/server.102/b14200/pseudocolumns009.htm

• effect of pump or etl data on the materialized view logs

  Hi, we are mobile/upgrading an instance of 10g to 12 c, where one materialized view logs and expect to do one of the following:

  (1) extract/import the meta, only using data pump data and move data using an etl tool

  (2) comprehensive database extract/import using the data pump in

  are there questions that we must be aware of when the displacement of these with either scenario materialized view logs?

  Thanks for any information you can provide.

  > are there questions that we should be aware of when the displacement of these materialized view logs with either scenario?

  No problem

• Trigger on the materialized view

  Hello

  I have the scenario based (Database 11 g):

  There is a view materialized (PERSON), which contains the ID and NAME fields. This MV is update daily with a fast refresh.

  I have a second array (NAMES), with ID and NORM_NAME. This table contains the name of the person, without special characters.

  For example, for recording / * 1 BJORN * / in the PERSON table

  I would check * 1 BJORN * / in table NAMES.

  
  

  Problem is how to fill the NAME table after the filling of the materialized view.

  I used a trigger AFTER INSERT or update, as described below, but even if I update the master table (for this purpose, update the MV), I have only to trigger inserts.

  
  

  Is there a way to implement a trigger "after update" on a materialized view, or do I need another approach?
  

  
  

  /*

  
  

  create or replace TRIGGER TRG_TESTE_MV

  AFTER INSERT OR UPDATE ON THE PERSON

  REFERENCING OLD AS OLD AGAIN AS NEW

  FOR EACH LINE

  BEGIN

  IF THE INSERTION

  INSERT THE NAMES

  VALUES

  (: NEW.id,:NEW.NAME);

  END IF;

  IF THE UPDATE CAN

  UPDATE OF NAMES

  SET NAME =: NEW.NAME WHERE ID =: NEW.id;

  END IF;

  END;

  */

  Thanks for any help

  Your trigger fires, but I doubted that you will be satisfied with the results. You really need to understand how to refresh process works before you begin creating triggers of MV:

  SQL > create table emp1 in select * from EMP
  2.

  Table created.

  SQL > create materialized view emp1 with rowid journal
  2.

  Materialized view log that is created.

  SQL > create materialized view emp1_mv
  2 fast refresh
  3 on request
  4 with rowid
  5 as
  6 select * from emp1
  7.

  Materialized view created.

  SQL > create or replace
  trigger 2 emp1_mv_biudr
  3 before inserting
  4 or update
  5 or delete
  6 on emp1_mv
  7 for each line
  Start 8
  9 insert then dbms_output.put_line ('INSERT' |: new.ename); end if;
  10 if the deletion then dbms_output.put_line ('REMOVE' |: old.ename); end if;
  11 end;
  12.

  Trigger created.

  SQL > insert
  2 in emp1 (empno, ename, sal)
  3 values(1,'X',1000)
  4.

  1 line of creation.

  SQL > validation
  2.

  Validation complete.

  SQL > set serveroutput on
  SQL > exec dbms_mview.refresh ('emp1_mv', 'f');
  INSERTION OF X

  PL/SQL procedure successfully completed.

  SQL > update emp1
  2 set sal = sal + 1
  3 where ename ('King', 'JONES')
  4.

  2 lines to date.

  SQL > validation
  2.

  Validation complete.

  SQL > set serveroutput on
  SQL > exec dbms_mview.refresh ('emp1_mv', 'f');
  INSERTION OF JONES
  INSERTION OF KING

  PL/SQL procedure successfully completed.

  SQL > delete emp1
  2 where in ename ('ALLEN', 'SMITH')
  3.

  2 deleted rows.

  SQL > validation
  2.

  Validation complete.

  SQL > set serveroutput on
  SQL > exec dbms_mview.refresh ('emp1_mv', 'f');

  PL/SQL procedure successfully completed.

  SQL >

  As you can see, refresh MV updates ever. Results update underlying table to remove/insert in MV. That's why your trigger will not give the results that you expected.

  SY.

• Materialized view automatically refresh? If the updating of the means how?

  Materialized view refresh automatically? If the updating of the means how?

  It is expected is not to ask questions of the basic documentation.

  Refresh Options

  When you define a materialized view, you can specify three update options: how to refresh, what kind of update and can trust constraints be used. If not specified, default values are considered as ON DEMAND , FORCE , and ENFORCED forced respectively.

  The two execution modes are ON COMMIT and ON DEMAND . According to the materialized view, you create, some options may be unavailable. Update modes are described in table 8-4 .

  Table 8-4 Modes of discount

  Refresh the Mode	Description
  ON COMMIT	Refresh product automatically when a transaction which changed one of the paintings of the materialized view's retail is committed. This can be specified as the materialized view is quickly updatable (in other words, no complex). The ON COMMIT privilege is required to use this mode.
  ON DEMAND	Refresh occurs when a user manually executes one of the procedures available refresh contained in the DBMS_MVIEW package ( REFRESH , REFRESH_ALL_MVIEWS , REFRESH_DEPENDENT ).

  http://docs.Oracle.com/CD/B28359_01/server.111/b28313/basicmv.htm#i1006193

• tabletop pre-constructed - materialized view Refresh

  Hi all

  Please help me to learn how to work with the materialized on pre-constructed table view.

  I created the table predefined:

  CREATE TABLE 'MISS '. "" TMP003 ".

  (

  "ITEM_ID" NUMBER (10.0)

  ) ;

  I created a materialized on predefined table view:

  CREATE A MATERIALIZED VIEW "MISS." "' TMP003 ' ('ITEM_ID')

  ON PREBUILT TABLE

  AS SOME "COST_DETAIL_ITEMS". "' ITEM_ID ' 'ITEM_ID' TO 'MISS '. "COST_DETAIL_ITEMS"@EFLP2. EFLATBED.COM 'COST_DETAIL_ITEMS ';

  I checked the amount of lines to the original source object:

  SELECT count (1) you cnt OF 'MISS '. "COST_DETAIL_ITEMS"@EFLP2. EFLATBED.COM 'COST_DETAIL_ITEMS ';

  CNT

  -----

  61047571

  I checked the amount of lines to the object of my result:

  Select count (1) cnt of 'MISS '. "" TMP003 ".

  CNT

  ----------

  0

  I tried to update the object with the result:

  DBMS_MVIEW exec. REFRESH('RATER.) TMP003');

  anonymous block filled

  I checked the amount of lines to my profitability after trying to update:

  Select count (1) cnt of 'MISS '. "" TMP003 ".

  CNT

  ----------

  0

  Please help me understand how to refresh my result object properly.

  Thank you.

  You will need to start by filling out the basic pre-built using table create table in select

  concerning

  Pravin

• What is the desertion of orderly materialized view with MLOG$.

  I have 11.2.4.0 Oracle enterprise edition.

  I want to remove completely the MATERIALIZED view and MATERIALIZED view logs.

  
  

  I need to do this on a production of databases.

  
  

  It's the right order?

  Thank you.

  You can drop the materialized view log first, then the materialized views.

  Because when you drop a materialized view log is therefore more available to fast refresh, however, it is available to rewrite, so drop materialized view log first, then materialized views. Additional information provided below may help Doc Oracle.

  If you delete a simple materialized view that is the least recently refreshed materialized view of a main table, then the database automatically purges the materialized master table see only connect the required lines to refresh the materialized view has fallen.

  If you delete a materialized view that was created on a predefined table, then the database removes the materialized view, and table preconstruitse returns to his identity in a table.

  When you delete a master table, the database does not automatically drop the materialized views based on the table. However, the database returns an error when it tries to refresh materialized view based on a main table that has been abandoned.

  If you delete a materialized view, then all the compiled queries that have been rewritten to use the materialized view will be invalidated and recompiled automatically. If the materialized view was preconstruitse on a table, then the table is not deleted, but it can no longer be maintained by the materialized view refresh mechanism.