MATERIALIZED View Log Index Tablespace

Similar Questions

• create materialized view log on the table without a primary key

  Hi all

  CREATE TABLE client_months 
  (
    SUBJ_CODE         NUMBER(4),
    SERV_CODE         NUMBER(4),
    DEBIT_CODE        NUMBER(4),
    PERIOD_NUM        NUMBER(2),
    PERIOD_NAME       VARCHAR2(40 CHAR),
    FIRST_MON_DAY     DATE,
    LAST_MON_DAY      DATE,
    VALUE_MON_DAY     DATE,
    MONTHES           NUMBER(4,2),
    GARDENING_WEIGHT  NUMBER(5,4),
    REASON_CODE       NUMBER(5),
    STAMP_ACTION      VARCHAR2(1 CHAR),
    STAMP_CDATE       DATE                        DEFAULT SYSDATE,
    STAMP_DATE        DATE,
    STAMP_USER        VARCHAR2(15 CHAR),
    REGION_CODE       NUMBER(9)
  )
  table created.
  
  CREATE UNIQUE INDEX client_months_UK  ON client_months 
  (SUBJ_CODE, SERV_CODE, DEBIT_CODE, PERIOD_NUM, REGION_CODE)
  index created.
  
  CREATE MATERIALIZED VIEW LOG ON client_months with rowid;
  
  CREATE MATERIALIZED VIEW client_months_mv 
  BUILD immediate 
  REFRESH FAST ON COMMIT 
  AS 
  SELECT * FROM client_months;
  
  ORA-12014: table 'CLIENT_MONTHS' does not contain a primary key constraint

  I don't want to refresh the mview when validation is performed on the base table.
  And I don't want to change the base table by adding a primary key.
  
  is it possible to create the mview journal using the unique index? or another solution?
  Please help
  Thanks in advance
  Naama

  Naamas wrote:
  No,
  I already read this post!

  Then you read wrong:

  SQL> CREATE TABLE client_months
    2  (
    3    SUBJ_CODE         NUMBER(4),
    4    SERV_CODE         NUMBER(4),
    5    DEBIT_CODE        NUMBER(4),
    6    PERIOD_NUM        NUMBER(2),
    7    PERIOD_NAME       VARCHAR2(40 CHAR),
    8    FIRST_MON_DAY     DATE,
    9    LAST_MON_DAY      DATE,
   10    VALUE_MON_DAY     DATE,
   11    MONTHES           NUMBER(4,2),
   12    GARDENING_WEIGHT  NUMBER(5,4),
   13    REASON_CODE       NUMBER(5),
   14    STAMP_ACTION      VARCHAR2(1 CHAR),
   15    STAMP_CDATE       DATE                        DEFAULT SYSDATE,
   16    STAMP_DATE        DATE,
   17    STAMP_USER        VARCHAR2(15 CHAR),
   18    REGION_CODE       NUMBER(9)
   19  )
   20  /
  
  Table created.
  
  SQL> CREATE UNIQUE INDEX client_months_UK  ON client_months
    2  (SUBJ_CODE, SERV_CODE, DEBIT_CODE, PERIOD_NUM, REGION_CODE)
    3  /
  
  Index created.
  
  SQL> CREATE MATERIALIZED VIEW LOG ON client_months with rowid
    2  /
  
  Materialized view log created.
  
  SQL> CREATE MATERIALIZED VIEW client_months_mv
    2  BUILD immediate
    3  REFRESH FAST WITH ROWID ON COMMIT -- pay attention to WITH ROWID
    4  AS
    5  SELECT * FROM client_months
    6  /
  
  Materialized view created.
  
  SQL>
  

  SY.

• 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

• Overhead of triggers VS materialized view log files

  If I need to log UPDTEs, insertions and deletions on a table - is there a difference in charge through newspapers vs MV triggers?
  
  Thank you

  You said that MV newspaper is slightly more effective than a trigger. I'm curious to know why. How they work differently under the hood?

  If the essence of the debate is only why MV newspaper is more effective than the trigger that I think that Justin has stressed that is below good technical points

  1. you don't have to order at the PL/SQL engine.
  2. you also write the binary data that you will put in the newspapers of recovery instead of column-level data.
  And below the text in the documentation:

  Trigger internal for the materialized view log

  When changes are made to the master table or master materialized with DML view, an internal trigger records information about the affected rows in the materialized view log. This information includes the values of the primary key, rowid, or id of the object or both, as well as the values for the other columns in the materialized view log. It is an intern AFTER trigger LINE that runs automatically when you create a journal of materialized to view table main target or master materialized view. It inserts a line in the materialized view log, whenever an INSERT, UPDATE, or DELETE statement modifies data in the table. This trigger is always the last to fire.

  http://docs.Oracle.com/CD/B28359_01/server.111/b28326/repmview.htm#i30732

  3 trigger, i.e. we are coding for the track changes, newspaper MV i.e. tool/technology, which is provided by Oracle itself; So certainly "we are not that much able to write code that is equal to or better than the Oracle itself right?

  Feature of MV's trigger INSTEAD of, but under the hood, with close to internal components of Oracle.

  Concerning
  Girish Sharma

• Bug: Cannot create materialized view log on XE 11 G

  Hello
  
  I connect as try and HR user create materialized view log

  CREATE MATERIALIZED VIEW LOG ON HR.EMPLOYEES;

  I get the error
  >
  Error from the 1 in the command line:
  CREATE LOG VIEW MATERIALIZED ON HUMAN RESOURCES. EMPLOYEES
  Error in the command line: 1 column: 0
  Error report:
  SQL error: ORA-00439: feature not enabled not: Advanced replication
  00439 00000 - "function not enabled: %s."
  * Cause: The specified feature is not enabled.
  * Action: Try not to use this feature.
  >
  
  You can create a materialized view log on 10G XE with no problems.
  
  Kind regards
  Jari
  
  http://dbswh.webhop.NET/dbswh/f?p=blog:Home:0

  Is this a bug in 11g or 10g?

  It was reported earlier in the beta forum now archived. {: identifier of the thread = 2214092}

  The current doc lists the MV sites only (and 'No' to the function of replication advanced):
  http://download.Oracle.com/docs/CD/E17781_01/license.112/e18068/TOC.htm#BABDFDAI

• ORA-12096: error in materialized view log

  Hi all
  
  
  I had created a display of fast refresh materialized. Log was also created.
  
  Now, I dropped the mv and newspapers.
  
  But now, every time I update or insert into the customer table I receive the error message.
  
  
  ORA-12096: error in materialized view log on the client
  ORA-00942: table or view does not exist
  
  There are entries in the DBA_MVIEW_LOGS for the customer table.
  
  Please suggest.

  Hello

  Which version of the database, you are on?
  And you have access to the Oracle Metalink/My Support?

  Found this, by the way:

  ORA-12096: error in materialized view log

  If problems occur when you try to access a log of a materialized view, the system issues an error ORA-12096 which is followed by the actual error. If the error ORA-12096 is accompanied by a message ORA-00942, the problem may be due to a reorganization in line which was only partially cancelled. In this case, you can remove the log file for manually materialized view (after checking that it is no longer necessary):

  DROP NEWSPAPER MATERIALIZED VIEWS

  ;

  Published by: hoek on July 29, 2009 14:15

• The materialized view log and user...

  Hello
  Suppose a user, we will call him A has a table and another user B must create a log of materialized view on the table that a user has.
  While user B have all the privileges of object (direct priv insert, update, delete... not through a role) on the table to the user may not create a log of mv on this table on its schema...
  Thus, the insert/update/delete stmts on < table_name > are run successfully (after having logged on as user B).
  
  The error message ' ORA-00942: table or view does not exist ' appears when I run the command:
  Connect B/B;
  create log view materialized on table_name with sequence including new values;
  
  Note: I use ORADB 10.2.0.4 and it stands for table-name to user B (which tries to create the log of mv on)...
  
  The req. above is possible somehow?
  
  Thank you
  SIM

  The documentation says the following:

  The materialized view log is created in the same schema as the master of the target.

  HTH!

• Impact on performance at the addition of materialized view logs at the tables?

  I write a very complex query for a client of our database system transaction and this will require the creation of a materialized viewbecause, all attempts at development to make acceptable performance failed.
  
  I want to activate the fast refresh the MVIEW but I am confused about the consequences of the addition of the addition of materialized view logs to the base tables.
  
  Some tables are large and involved in a large number of transactions and I wonder if the INSERT/update performance will be seriously affected by the presence of a newspaper mview.
  
  Maybe it's a simple question, but I was unable to find an answer very clear in the literature.
  
  Thanks for all the answers!
  
  Chris Mills
  Biotechnology data management consultant

  There is an overload for the newspapers of the view materialized, a little less, but roughly on par with a trigger that writes to a table.

  If it is an OLTP system where you do a lot of low-value transactions, the general expenses percentage is probably not particularly great, something in the range of 5-10% maybe (although, of course, by running tests in the development environment would be desirable). If there are loads in bulk, the impact of the percentage could be higher.

  Justin

• Create Materialized view and Materialized view log.

  I wanted to create a materialized view with option "REFRESH QUICKLY YOU COMMIT".

  (1) table 1 - it is partitioned range + list - added primary key

  (2) View1 - having primary keys on the base table of view

  Steps to follow:

  (1) create the materialized on Table1; view journal -primary key by default

  (2) create the materialized on view1 view log.  -It gives below error.

  ORA-00942: table or view does not exist

  I wanted to create Materialized view as below

  create a materialized view

  Quickly REFRESH ON validation

  as

  Select...

  ........

  ... from table1

  where c1 (select c1 from View1 which...);

  
  

  Question:

  (1) because I am getting above error when creating journal of MV on the view. Can one create log view MV or we create a MV newspaper on the base table of view?

  (2) to create the MV with "REFRESH QUICKLY YOU COMMIT' option, we need to have the primary key on the main tables?

  
  

  Pointers on this will be really useful.
  

  
  

  Thank you

  Prasad

  "When a materialized view is maintained by the ON COMMIT method, the time required to perform the validation can be slightly longer than usual." This is because the refresh operation is performed as part of the validation process. This is why this method may not be suitable if many users at the same time change the tables on which is based the materialized view. »

  See: basis of materialized views (refreshment options) for all the other options and how they work.

• Materialized view log table to clear

  Hello
  RDBMS: oracle 10.2.0.2
  
  I created the materialized with fast refresh view.
  Now as time passed, Mview journal tables grow much and more.
  
  I want to know, is it possible to shrink the Mview journal tables?
  
  Thank you
  Terranova

  read this link

  http://download.oracle.com/docs/cd/B19306_01/server.102/b14227/rarmanmv.htm#sthref708
  

• Generate the ddl to create materialized view log...

  Hi gurus...
  
  Oracle db: 11g
  
  I am trying to generate / excerpt from script MVIEW Logs from prod to be applied on the test.
  I tried
  < code >
  DBMS_METADATA. GET_DDL (decode(object_type,'materialized_view_log'), object_name, owner)
  from dba_objects
  where owner = < ABC >;
  < code >
  
  above fails, any ideas?
  
  Thank you

  >
  Oracle db: 11g

  I am trying to generate / excerpt from script MVIEW Logs from prod to be applied on the test.
  I tried
  
dbms_metadata.get_ddl(decode(object_type,'materialized_view_log'), object_name, owner)
from dba_objects
where owner=;


  above fails, any ideas?
  >
  Please try to use the tags in code, but you need to add.

   on the line before and the line after your code instead of what you are using.
  
  The object type names are case-sensitive so you need to use
  

  DBMS_METADATA. GET_DDL ('MATERIALIZED_VIEW_LOG', object_name, owner)

  Why are you using DECODE?                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
  

• MATERIALIZED view log PPUR$ _

  Hello all;
  
  1. What is the purpose of PPUR$ _ ?
  

  Vs Mview unique Collection of Mview -when you perform a complete refresh

  -are all records deleted or truncated? -That one is true for both cases?
  
  Thank you...

  Case 1 (default) remove

  DBMS_MVIEW EXEC. REFRESH (LIST-ONLINE 'MV123' METHOD-ONLINE "C", ATOMIC_REFRESH => TRUE);

  Case 2 (default and faster) Truncate

  DBMS_MVIEW EXEC. REFRESH (LIST-ONLINE 'MV123' METHOD-ONLINE "C", ATOMIC_REFRESH-ONLINE FALSE);

• is this allowed? materialized view the log for the remote database (via db lin

  : Hi guys.
  
  try to do
  
  create materialized view log on user@xxx with sequence, rowid (col1, col2), including the new values;
  
  
  where xxx is a remote db link
  ------
  
  had this error
  
  ORA-00949 - illegal reference to the remote database
  
  Google but do not know whelther this error is an internal error or not allowed for mviews characteristic.
  
  help pleaase!
  
  Rgds,
  Noob

  do you mean that the materialized log should be created in the same location where the main table

  YES. Of course, it must be there! Any update to the main table should also update the MV log that is created against it!

  Hemant K Collette

• CREATE A CONNECTION MATERIALIZED VIEW / SNAPSHOT LOG

  Hello
  
  Is there a difference between create log materialized view on and instant on creat.
  
  Did some research on Google, who discovered: a snapshot log is a related table
  the main table of a capture instant and is used for updating snapshots of the Greenbelt master.
  The materialized view log is a table associated with the master table of a materialized view. Appear to be the same.
  
  Moreover, import these tables? My database will work normally without the view log.
  
  Kind regards
  Becks

  There is no difference.

  The so-called "Snapshot Logs" pre Oracle8i were called "Materialized View Logs" for Oracle8i.

  Search the syntax of SQL to CREATE MATERIALIZED VIEW LOG.

  Hemant K Collette

• Materialized view and view logs on EBS 11.5.10

  Hello
  Trying to create a log of view materialized on table MTL_SYSTEM_ITEMS_B connected like APPS... the system of claims on: ORA-00942: table or view does not exist
  
  So, I need to create the mv to the schema INV log or I give a priv to user APPS?
  I read in the edoc EBS - Concepts that the materialized view should be created in the schema of the APPS...
  
  What materialized view logs... ???
  
  Thank you
  SIM

  SIM,

  Please consult the following and see if it helps.

  Note: 273924.1 - ORA-12096: LOG of ERRORS IN the MATERIALISEE VIEW ON "INV". " MTL_MATERIAL_TRANSACTIONS
  https://metalink2.Oracle.com/MetaLink/PLSQL/ml2_documents.showDocument?p_database_id=not&P_ID=273924.1

  Note: 215463,1 - ORA-01031 insufficient privileges when create materialized in different schema view journal
  https://metalink2.Oracle.com/MetaLink/PLSQL/ml2_documents.showDocument?p_database_id=not&P_ID=215463.1

  Kind regards
  Hussein