Commit performance on table with Fast Refresh MV

Similar Questions

• Listagg works does not in mview with fast refresh on commit?

  Version Info:

  Oracle Database 11 g Release 11.2.0.3.0 - 64 bit Production

  PL/SQL Release 11.2.0.3.0 - Production

  CORE Production 11.2.0.3.0

  AMT for 64-bit Windows: Version 11.2.0.3.0 - Production

  NLSRTL Version 11.2.0.3.0 - Production

  I have a materialized view that is defined as fast refresh on validation and includes a call to listagg. The update goes as planned, but the value of the column that is created by using the listagg not updated unless I have make an explicit refresh. I was able to recreate the problem with a simple case, pasted below. Someone knows how to fix this?

  Thank you!

  -Tom

  Test scenario follows...

  SQL> create table codes (
    2       id number primary key,
    3       product varchar2(10) not null,
    4       code varchar2(10) not null);
  
  Table created.
  
  SQL> create materialized view log on codes with rowid, sequence (product, code) including new values;
  
  Materialized view log created.
  
  SQL> create materialized view code_agg_mv
    2        refresh fast on commit
    3        with rowid
    4        as
    5  select c.product
    6        , listagg(c.code, ',') within group (order by c.code) codes
    7        , count(*) cnt
    8    from codes c
    9   group by c.product;
  
  Materialized view created.
  
  SQL> truncate table mv_capabilities_table;
  
  Table truncated.
  
  SQL> begin
    2       dbms_mview.explain_mview('CODE_AGG_MV');
    3       commit;
    4  end;
    5  /
  
  PL/SQL procedure successfully completed.
  
  SQL> select capability_name, possible
    2    from mv_capabilities_table
    3   where capability_name like '%REFRESH%'
    4   order by capability_name;
  
  CAPABILITY_NAME                P
  ------------------------------ -
  REFRESH_COMPLETE               Y
  REFRESH_FAST                   Y
  REFRESH_FAST_AFTER_ANY_DML     Y
  REFRESH_FAST_AFTER_INSERT      Y
  REFRESH_FAST_AFTER_ONETAB_DML  Y
  REFRESH_FAST_PCT               N
  
  6 rows selected.
  
  SQL> insert into codes (id, product, code) values (1, 'Pants', 'Large');
  
  1 row created.
  
  SQL> insert into codes (id, product, code) values (2, 'Pants', 'Blue');
  
  1 row created.
  
  SQL> insert into codes (id, product, code) values (3, 'Pants', 'Itchy');
  
  1 row created.
  
  SQL> commit;
  
  Commit complete.
  
  SQL> select *
    2    from code_agg_mv;
  
  PRODUCT    CODES                                 CNT
  ---------- ------------------------------ ----------
  Pants      Blue,Itchy,Large                        3
  
  SQL> -- ^^^ This is correct ^^^
  
  SQL> delete from codes where id = 3;
  
  1 row deleted.
  
  SQL> commit;
  
  Commit complete.
  
  SQL> select * from code_agg_mv;
  
  PRODUCT    CODES                                 CNT
  ---------- ------------------------------ ----------
  Pants      Blue,Itchy,Large                        2
  
  SQL> -- ^^^ CNT is correct, but codes should not contain "Itchy" ^^^
  SQL> --
  SQL> -- Try an explicit fast refresh...
  
  SQL> begin
    2       dbms_mview.refresh('CODE_AGG_MV', 'F');
    3  end;
    4  /
  
  PL/SQL procedure successfully completed.
  
  SQL> select * from code_agg_mv;
  
  PRODUCT    CODES                                 CNT
  ---------- ------------------------------ ----------
  Pants      Blue,Itchy,Large                        2
  
  SQL> -- ^^^ Nope, same issue. ^^^
  SQL> --
  SQL> -- Try an explicit complete refresh...
  
  SQL> begin
    2       dbms_mview.refresh('CODE_AGG_MV', 'C');
    3  end;
    4  /
  
  PL/SQL procedure successfully completed.
  
  SQL> select * from code_agg_mv;
  
  PRODUCT    CODES                                 CNT
  ---------- ------------------------------ ----------
  Pants      Blue,Large                              2
  
  SQL> -- ^^^ There we go. ^^^
  
  

  Message edited by Tom N to include database version information.

  Hello Tom,

  listagg() is not supported for fast refresh.

  http://docs.Oracle.com/CD/E11882_01/server.112/e25554/basicmv.htm#i1007028

  Only SUM, COUNT, AVG, STDDEV, VARIANCE, MIN and MAX are supported to fast refresh.

  Kind regards

  Pravin

• ADF table with checkbox refresh data binding problem

  Hello.
  
  I use JDeveloper 11.1.1.3. I need to use the table with checkboxes in each row of the table in my project. I use VO with transitional 'Selected' attribute that has a boolean type.
  Everything works well, wait one thing:
  When you click checbox with valueChangeListener and try to get the selected line in the managedBean you won't get any selected lines. After selecting second maaged bean evil shows that 1 single line is selected. It's my managedBean method:
  
  public void SelectCountyClick (ValueChangeEvent valueChangeEvent) {}
  
  DCIteratorBinding it = ADFUtils.findIterator (ITERATOR_NAME);
  
  int selectedRowCount = 0;
  RowSetIterator laughs = it.getRowSetIterator ();
  Line r = rit.first ();
  If (r! = null) {}
  If ((Boolean) r.getAttribute ("Selected"))
  selectedRowCount ++;
  }
  
  While (rit.hasNext ()) {}
  r = rit.next ();
  If ((Boolean) r.getAttribute ("Selected"))
  selectedRowCount ++;
  }
  
  System.out.println ("selected all THE LINES:" + selectedRowCount);
  
  
  }
  
  I tried to change this event to the client event, I got the line number, I put 'true' or 'false' to the code data binding, but whenever I can't correct data after the value change event.
  
  Please help me.
  
  The latest idea is updated databing after click of checkbox, I think. Please help me.
  
  Thank you!

  You must go through the concepts of life cycle of page ADF. In simple terms the Boolean value in the model is not defined in valueChangeListener. Try adding (.processUpdates) valueChangeEvent.getComponent (FacesContext.getCurrentInstance ()); on top of your listener method and see the effect.

  Reference:
  http://docs.Oracle.com/CD/E15051_01/Web.1111/b31974/adf_lifecycle.htm

• View materialized with fast refresh and CLOB

  People,

  I have a table named ABC in a database named D1. This table has a CLOB column named CLOBCOL.

  I'm trying to replicate ABC table in the database of D2 using dblink.

  So, I tried to create Materialized View ABCMV of database D2 using the dblink. But cannot create because of the CLOB data type.

  Yes, thought of creating discovered first in database D1 and then create Materialized View in the database D2.

  But, the problem is that if I do, then the materialized view cannot be "refresh quickly" because he has materialized view log. Now, as this materialized view is supposed to rest on the view to D1, where and how can I create materialized view log.

  Help, please.

  Hello

  How about this trick - don't know if you can change your table in the source?

  TEST@DEMODB > alter table test add col4 as (DBMS_LOB. SUBSTR (col3, 500, 1)) virtual;

  Modified table.

  Test2@DEMODB > create a materialized view rich quickly updated with rowid as select col1, col2, col4 test@demo;

  Materialized view created.

  TEST2@EETGRID >

  See you soon,.

  Rich

• Failed to create the fast refresh on the materialized view

  Hi, I am creating a materialized on the tables with fast refresh view on commit but I get an error message.

  I have created the following logs:

  Bonus CREATE MATERIALIZED VIEW LOG ON
  Users TABLESPACE
  WITH THE PRIMARY KEY
  INCLUDING THE NEW VALUES

  Used to CREATE MATERIALIZED VIEW LOG ON
  Users TABLESPACE
  WITH THE PRIMARY KEY
  INCLUDING THE NEW VALUES

  I then try to create the following:

  Test.BAM CREATE MATERIALIZED VIEW

  IMMEDIATE CONSTRUCTION
  COOL OFF QUICKLY ON COMMIT
  AS
  SELECT a.dept_no, SUM (a.salary)
  EMPLOYEE a, b bonus
  WHERE a.employee_id = b.employee_id
  GROUP BY dept_no

  When I do that, I get the following error:

  . ORA-12032: cannot use column rowid of materialized

  view log on 'test '. "" BONUS ".

  If I change to a full refresh, it works pretty well. If I create a MV with a fast refresh on a query just within the limits of the table bonus it also works very well, for example ' select * bonus where employee_id = 2'

  What I am doing wrong? Also when looking at the notes for MV connects in some places, he said using the primary key and others, he says to the sequence of use and row_id. Which is correct and what difference does it make?

  11.2 aix.

  Thank you very much

  I suggest that investigate you the reason why your MV is not quickly updatable with the following method:

  (1) create MV_CAPABILITIES_TABLE with @?/rdbms/admin/utlxmv.sql

  (2) exec ('BAM') dbms_mview.explain_mview

  3)

  column format a100 msgtxt

  column related_text format a20

  SELECT the possible, capability_name, related_text,

  msgtxt

  OF mv_capabilities_table;

  That should tell you the reason why he isn't yet quickly updatable.

  There was a popular quote on men and fishing, but I don't remember it for now :-)

  Kind regards

  Uwe Hesse

• materialized wiev fast refresh every minute

  Hello, I need create mv and this mv need auto fast refresh every minute.

  I first create the table 3

  first:

  CREATE TABLE 'HR '. "' EMPLOYEES '.

  (NUMBER (6.0) "EMPLOYE_ID",)

  VARCHAR2 (20 BYTE) "FIRST NAME",

  VARCHAR2 (25 BYTE) "NAME."

  VARCHAR2 (25 BYTE) "E-MAIL."

  "PHONE_NUMBER" VARCHAR2 (20 BYTE),

  'HIRE_DATE' DATE,

  "JOB_ID' VARCHAR2 (10 BYTE),

  "SALARY" NUMBER (8,2).

  NUMBER (2.2) "COMMISSION_PCT."

  NUMBER (6.0) "MANAGER_ID."

  "DEPARTMENT_ID" NUMBER (4.0)

  )

  Second:

  CREATE TABLE 'HR '. "" DEPARTMENTS. "

  ("DEPARTMENT_ID" NUMBER (4,0),)

  VARCHAR2 (30 BYTE) "DEPARTMENT_NAME."

  NUMBER (6.0) "MANAGER_ID."

  NUMBER (4,0) 'LOCATION_ID '.

  )

  Thirdly:

  CREATE TABLE 'HR '. "' LOCATIONS '.

  (NUMBER (4,0) 'LOCATION_ID',)

  'ADRESSE_RUE' VARCHAR2 (40 BYTE),

  "ZIP_CODE" VARCHAR2 (12-BYTE),

  VARCHAR2 (30 BYTE) 'CITY ',.

  VARCHAR2 (25 BYTE) "STATE_PROVINCE"

  'COUNTRY_ID' TANK (2 BYTES)

  )

  can I create mv newspaper with rowid, become I refresh mv with quick setting

  create log view materialized on EMPLOYEES with rowid.

  create log view materialized on departments with rowid.

  create log view materialized on the premises with rowid.

  Finally, I create mv with fast refresh method

  CREATE THE TEST_MV_1 MATERIALIZED VIEW

  REFRESH QUICKLY START WITH sysdate + 0 NEXT (sysdate + 1/1440)

  AS

  Select EMPLOYEES. EMPLOYEE_id

  departments.department_id

  locations.location_id

  EMPLOYEES.rowid EMPLOYEES

  departments.rowid departments

  locations.rowid locations

  EMPLOYEES

  ministries

  places

  where departments.manager_id (+) = EMPLOYEES. EMPLOYEE_ID

  and departments.location_id = locations.location_id (+);

  now I have my mv and I'm seeing or my mv running

  SELECT

  table_name,

  TO_CHAR (LAST_REFRESH,'yyyy-MM-DD HH24:MI:SS) LAST_REFRESH

  , to_char (sysdate,'yyyy-MM-DD HH24:MI:SS) sys_date

  -Count (Name)

  Of all_snapshots

  where table_name = 'TEST_MV_1 '.

  I get:

  TABLE-NAME LAST_REFRESH SYS_DATE

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

  TEST_MV_1 2015-09-01 17:56:10-2015-09-01 17:57:02

  After 2 min

  SELECT

  table_name,

  TO_CHAR (LAST_REFRESH,'yyyy-MM-DD HH24:MI:SS) LAST_REFRESH

  , to_char (sysdate,'yyyy-MM-DD HH24:MI:SS) sys_date

  -Count (Name)

  Of all_snapshots

  where table_name = 'TEST_MV_1 '.

  TABLE-NAME LAST_REFRESH SYS_DATE

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

  TEST_MV_1 2015-09-01 17:58:10 2015-09-01 17:59:05

  then I insert the new record in the table

  Insert employees

  (EMPLOYE_ID,

  FIRST NAME,

  LAST_NAME,

  E-mail

  PHONE_NUMBER,

  HIRE_DATE,

  JOB_ID,

  SALARY,

  COMMISSION_PCT,

  MANAGER_ID,

  DEPARTMENT_ID)

  values

  (515, 'Jennifer', 'Whalen', 'JWHALEN', '515.123.4444', to_date('1987.09.17','yyyy.mm.dd'), 'AD_ASST', null, 101, 10, 24000)

  /

  Commit

  /

  1 row inserted.

  Validation complete.

  and check again my last_refresh mv

  SELECT

  table_name,

  TO_CHAR (LAST_REFRESH,'yyyy-MM-DD HH24:MI:SS) LAST_REFRESH

  , to_char (sysdate,'yyyy-MM-DD HH24:MI:SS) sys_date

  -Count (Name)

  Of all_snapshots

  where table_name = 'TEST_MV_1 '.

  TABLE-NAME LAST_REFRESH SYS_DATE

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

  TEST_MV_1 2015-09-01 17:59:10 -2015-09-01 17:59:30

  affter 2 min

  TABLE-NAME LAST_REFRESH SYS_DATE

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

  TEST_MV_1 2015-09-01 17:59:10 -2015-09-01 18:02:12

  and when I go to data mv I don't see my new data

  Select * from TEST_MV_1

  where EMPLOYEE_ID = 515

  no selected line

  Maybe someone can help me? I'm two weeks try fix it and lost all hope

  
  

  I find:

  My mv refreshed, but when I insert new data he collapsed
  
  

  I ' am am ansver: when I try to refresh the MV with fuction

  DBMS_REFRESH. Refresh (the "HO".) "TEST_MV_1" ');

  I get the error

  ORA-12008: error path refresh materialized view

  ORA-00942: table or view does not exist

  ORA-06512: at "SYS." DBMS_SNAPSHOT", line 2563

  ORA-06512: at "SYS." DBMS_SNAPSHOT", line 2776

  ORA-06512: at "SYS." DBMS_IREFRESH', line 685

  ORA-06512: at "SYS." DBMS_REFRESH", line 195

  ORA-06512: at line 2

  00000 - "error in the path of refresh materialized view.

  * Cause: Table SNAP$ _ reads lines of sight

  MVIEW$ _, which is a view of the main table

  (the master can be on a remote site).  Any

  error in this way will cause this error when updating.

  For updates of the Rapids, the table. MLOG$ _

  is also referenced.

  * Action: Examine the other messages on the stack to find the problem.

  See if SNAP objects $ _, MVIEW$ _,.

  . @, . MLOG$ _@.

  There is always.

  so I think that I can not select the HR data. MLOG$ _EMPLOYEES and another newspaper in the HR schema table

  When I try to select * HR. MLOG$ _EMPLOYEES I get table emty (schema HO)

  so I don't understand how I can not update quick MV when I log empty.

  I therefore ask my db admin for more privileges to select the MV journal table

  I do not know what admin Preobrajensky give to my diet, but it's a job.

  dude thanks for the help

• The problems of performance - query on a copy of a table is faster than the orig

  Hi all
  
  I have problems with a specific table (select) sql performance (costs 7800) (Oracle 10.2.0.4.0, Linux).
  
  Then I copied the table 1:1 (same structure, the same data, the same indexes, etc.) within the same domain (, the user database, tablespace etc.) and gathered the table_stats with the same settings. The same query on the copied table is faster and costs are only 3600.
  
  Gods sake why is the query on this new table faster?
  
  I appreciate any idea.
  
  Thank you!
  
  FIBO
  
  Edited by: user954903 the 13.01.2010 04:23

  alter table t enable row movement;
  alter table t shrink space;
  alter table t disable row movement;
  

• 'For' loop with a different number of iterations. Second, the auto-indexation of the tables with different sizes is done. It can affect the performance of the Vi?

  Hello

  I have a loop 'for' which can take different number of iterations according to the number of measures that the user wants to do.

  Inside this loop, I'm auto-indexation four different 1 d arrays. This means that the size of the tables will be different in the different phases of the execution of the program (the size will equal the number of measures).

  My question is: the auto-indexation of the tables with different sizes will affect the performance of the program? I think it slows down my Vi...

  Thank you very much.

  My first thought is that the compiler to the LabVIEW actually removes the Matlab node because the outputs are not used.  Once you son upward, LabVIEW must then call Matlab and wait for it to run.  I know from experience, the call of Matlab to run the script is SLOW.  I also recommend to do the math in native LabVIEW.

• Fill a table with the results of the refresh groups

  Hello world
  
  I need a little help.
  
  I'm working on an Oracle 10.2.0.4 on windows.
  
  I have a table I created like this:
  Table name: DIM_REPLICA
  
  COD_SEZ VCHAR2 (2)
  NOME_SEZ VCHAR2 (20)
  FLAG TANK (1)
  DATE OF D_REPLICA
  
  This DB I have 210 discount groups running every night. I need fill this table with the results of the refresh groups.
  
  So when the refresh for example called ROME group runs I need to write on the table the name ROME in the field "NOME_SEZ", a Y or N if the refresh Group has worked in the field of the INDICATOR and LAST_DATE refresh force ran into the field of the D_REPLICA. The COD_SEZ field is a code that I get other things. It is not necessary for the moment. I can add it myself on my own.
  
  Can someone help me please?
  
  I was looking on the tables SYS DBA_JOBS and DBA_REFRESH these data, but I don't know what to take and how to fill the table. Trigger? Procedure? Any help will be great!
  
  Thank you all in advance!

  This forum is for SQL * PLus, questions and your question is about general issues Oracle. You will get a better response by posting your question in another forum - probably the General database instance.

  Please close this thread and start over in another forum.

• Fast refresh view Matt

  Hi all

  http://docs.Oracle.com/CD/B19306_01/server.102/b14223/basicmv.htm#i1006519

  Fast refresh for a materialized view containing joins and aggregates is possible after any type of DML for the base tables (direct load or conventional INSERT , UPDATE , or DELETE ). It can be set to refresh ON COMMIT or ON DEMAND . A REFRESH ON COMMIT materialized view will be updated automatically when a transaction that is DML to one of the details of the materialized view commits tables. The time required to perform the validation may be slightly longer than usual when this method is selected. This is because the refresh operation is performed as part of the validation process. Therefore, this method may not be suitable if many users at the same time change the tables on which is based the materialized view.

  1. I got this quote from the above link.

  What is the refresh option by default when I use REFRESH QUICKLY? My example:

  CREATE MATERIALIZED VIEW REFRESH QUICKLY ENABLE QUERY REWRITE AS mat_vw_test

  SELECT *.

  OF vw_test;

  2 using the example 8-1 1 example: creating a materialized from the link view.

  Product_sales_mv CREATE MATERIALIZED VIEW

  REFRESH QUICKLY

  ACTIVATE THE QUERY REWRITING

  Did YOU SELECT p.prod_name, SUM (s.amount_sold) AS dollar_sales,

  Count (*) AS cnt, COUNT (s.amount_sold) AS cnt_amt

  S SALES, products p

  WHERE s.prod_id = p.prod_id GROUP BY p.prod_name;

  View of the mat will not be updated after a user execute INSERT, UPDATE, or UPDATE. fix?

  How can I update the matte view after a DML statement is executed?

  With the help of Oracle 11 g Release 11.2.0.4.0

  Thanks in advance.

  It was missing an index for a column in one of my big table.

  Thanks for your help.

  Best,

• The Materialized View - ORA-12052: is unable to fast refresh materialized view

  Hello

  I was hitting my head all day trying to create materialized views. I have made some progress, but have hit a brick wall, unfortunately!

  Basically, I have been invited to take a view and see if I can get the benefits of performance by transforming all or part of it in materialized views. Because the underlying tables of the config is updated quite frequently, I want to fast refresh materialized views on commit. However, when I try to create a materialized view containing an outer join in an aggregated materialized view table, I get ORA-12052: is unable to fast refresh materialized view.

  I went through the documentation and also Rob van Wijkvery useful series of blogs on the topic (especially http://rwijk.blogspot.co.uk/2009/09/fast-refreshable-materialized-view.html) but have not found anything that matches. Maybe I missed something somewhere along the line, or maybe I'm asking just something completely impossible?

  My db is 11.2.0.2.

  Here's the test scripts, I've worked with that:

  drop materialized view test1_test2_mv;
  Drop materialized view test2 journal;
  drop table test2;
  Drop materialized view test1_mv newspaper;
  drop materialized view test1_mv;
  Drop materialized view test1 journal;
  drop table test1;

  create table test1 (identification number,
  type varchar2 (10),
  number of Val,
  update_time date,
  constraint t1_pk primary key (id, type, val));
  
  Insert into test1
  Select 1, 'a', 1001, sysdate - 10/24 Union double all the
  Select 1, 'b', 1003, sysdate - 9/24 Union double all the
  Select 1, 'c', 1002, sysdate - 8/24 Union double all the
  Select 1, had ', 1004, sysdate - 7/24 Union double all the
  Select 1, 'e', 1005, sysdate - 6/24 Union double all the
  Select 1, 'c', 1006, sysdate - 5/24 Union double all the
  Select 2, 'a', 1002, sysdate - 4/24 Union double all the
  Select 2, 'b', 1005, sysdate - 3/24 Union double all the
  Select 3, 'a', 1001, sysdate - 2/24 Union double all the
  Select 3, 'c', 1006, sysdate - 1/24 Union double all the
  Select 3, 'e', 1008, sysdate - 2/24 Union double all the
  Select option 4, has ', 1004, sysdate - 3/24 Union double all the
  Select 5, 'b', 1002, sysdate - 4/24 Union double all the
  Select 5, 'g', 1001, sysdate - 5/24 Union double all the
  Select 6, 'h', 1004, sysdate - 6/24 Union double all the
  Select 7, 'b', 1007, sysdate - 7/24 Union double all the
  Select 7, had ', 1001, sysdate - 8/24 double;

  commit;

  Select * from test1;

  
  CREATE MATERIALIZED VIEW LOG ON test1
  WITH rowid, primary key (update_time)
  including the new values;

  
  Test1_mv CREATE MATERIALIZED VIEW
  IMMEDIATE CONSTRUCTION
  COOL OFF QUICKLY ON COMMIT
  Did YOU SELECT id,
  MAX (case when type = "there" end of val) THAT col_a,.
  MAX (case when type = 'b', then val end) AS col_b,.
  MAX (case when type = 'c' then end val) AS col_c,.
  MAX (case when type = ' then end of val) AS col_d,
  MAX (update_time) AS update_time
  OF test1
  WHERE TYPE in ('a',
  « b »,
  « c »,
  a ')
  GROUP BY id;

  CREATE MATERIALIZED VIEW LOG ON test1_mv
  WITH rowid
  including the new values;

  
  create table test2 (identification number,
  col2 number,
  COL3 varchar2 (10),
  number of COL4,
  constraint t2_pk primary key (id));
  
  Insert into test2
  Select 1, 1, 'bob', 1 double Union all
  Select 2, 1, "sue", 1 double Union all
  Select 3, 1, 'tom', 1 double Union all
  Select 4, 1, 'jay', 1 double Union all
  Select 5, 1, 'art', 1 double Union all
  Select 6, 1, 'kay', 1 double Union all
  Select 7, 1, 'max', 1 double Union all
  Select 8, 1, 'tim', 1 double Union all
  Select 9, 1, "liz", 1 from dual;

  commit;

  
  CREATE MATERIALIZED VIEW LOG ON test2
  WITH rowid, primary key
  including the new values;

  
  Test1_test2_mv CREATE MATERIALIZED VIEW
  IMMEDIATE CONSTRUCTION
  COOL OFF QUICKLY ON COMMIT
  LIKE SOME t2.rowid,.
  T1.ID,
  T1.col_a,
  T1.col_b,
  T1.col_c,
  T1.col_d,
  T1.update_time,
  T2.col2,
  T2. COL3
  OF test1_mv t1,.
  Test2 t2
  WHERE (+) t1.id = t2.id; -symbol of outer join is not correctly displayed on the forums without space, grr!

  ORA-12052: is unable to fast refresh materialized view TEST1_TEST2_MV

  Y at - it any way I can get the materialized view fast refresh on commit or I asking the impossible?

  Add t1.rowid:

  SQL > CREATE MATERIALIZED VIEW test1_test2_mv

  2 BUILD IMMEDIATE

  3 QUICK REFRESH YOU COMMIT

  4 AS t2.rowid SELECT rid2,

  5 t1.rowid rid1,

  6 t1.id

  T1.col_a 7,.

  T1.col_b 8,.

  T1.col_c 9,.

  T1.col_d 10,

  T1.update_time 11,

  T2.col2 12,

  13 t2.col3

  14 OF test1_mv t1,

  15 test2 T2

  16 WHERE t1.id = t2.id

  17.

  Materialized view created.

  SQL > select * from test1_test2_mv

  2.

  RID2 RID1 ID COL_A, COL_B, COL_C COL_D UPDATE_TIME COL2 COL3

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

  AAAYB6AANAAAANDAAA AAAYB/AANAAAAN/AAA 1 1001 1003 1006 1004 25 / 06 / 2014 12:54:16 1 bob

  AAAYB6AANAAAANDAAB AAAYB/AANAAAAN/AAB 2 1002 1005 25 / 06 / 2014 1 sue 14:54:16

  AAAYB6AANAAAANDAAC AAAYB/AANAAAAN/AAC 3 1001 1006 25 / 06 / 2014 16:54:16 1 tom

  AAAYB/AANAAAAN/AAD AAAYB6AANAAAANDAAD 4 1004 25/06/2014 14:54:16 1 jay

  AAAYB6AANAAAANDAAE AAAYB / AANAAAAN / AAE 5 1002 2014/06/25 13:54:16 1 art

  AAAYB6AANAAAANDAAF AAAYB/AANAAAAN/AAG 7 1007 1009 25 / 06 / 2014 10:54:16 max 1

  AAAYB/AANAAAAN/AAH                                                                                                        1 tim

  AAAYB/AANAAAAN/AAF                                                                                                        1 kay

  AAAYB/AANAAAAN/AAI                                                                                                        1 liz

  9 selected lines.

  SQL > update of test2

  2 set col3 = "fly."

  3 where id = 7

  6 m

  1 line update.

  SQL > validation

  2.

  Validation complete.

  SQL > select * from test1_test2_mv

  2.

  RID2 RID1 ID COL_A, COL_B, COL_C COL_D UPDATE_TIME COL2 COL3

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

  AAAYB6AANAAAANDAAA AAAYB/AANAAAAN/AAA 1 1001 1003 1006 1004 25 / 06 / 2014 12:54:16 1 bob

  AAAYB6AANAAAANDAAB AAAYB/AANAAAAN/AAB 2 1002 1005 25 / 06 / 2014 1 sue 14:54:16

  AAAYB6AANAAAANDAAC AAAYB/AANAAAAN/AAC 3 1001 1006 25 / 06 / 2014 16:54:16 1 tom

  AAAYB/AANAAAAN/AAD AAAYB6AANAAAANDAAD 4 1004 25/06/2014 14:54:16 1 jay

  AAAYB6AANAAAANDAAE AAAYB / AANAAAAN / AAE 5 1002 2014/06/25 13:54:16 1 art

  AAAYB/AANAAAAN/AAH                                                                                                        1 tim

  AAAYB/AANAAAAN/AAF                                                                                                        1 kay

  AAAYB/AANAAAAN/AAI                                                                                                        1 liz

  AAAYB6AANAAAANDAAF AAAYB/AANAAAAN/AAG 7 1007 1009 25 / 06 / 2014 10:54:16 1 rob

  9 selected lines.

• Pivot can be used in fast refresh materialized view?

  Hi, I have a question about materialized view nested mode fast refresh on Oracle 11 g (It support function of pivot, but oracle 10 g doesn't support).
  
  When I created, he throws "ORA-12015: cannot create a view fast refresh materialized by a complex query.
  Then I used dbms_mview.explain_mview to see reason, and it tell me the following
  REFRESH_FAST_AFTER_INSERT ' view inline or subquery in LIST not supported for this type of MV.
  
  Can someone help me, any suggestions will be appreciated
  

  create table empX as select * from scott.emp;
  alter table empX add constraint PK_empX_empno primary key (empno);
  
  --drop  MATERIALIZED VIEW LOG ON empX;
  CREATE MATERIALIZED VIEW LOG ON empX with rowid, sequence(empno);
  
  --drop MATERIALIZED VIEW mv_empX;
  CREATE MATERIALIZED VIEW mv_empX
  REFRESH FAST START WITH SYSDATE
  NEXT  SYSDATE + 1/1440
  AS   
    select * from
    (
     select rowid emp_rowid, deptno, job, sal from empX
    )
    PIVOT( max(sal) for job IN ('ANALYST' job1, 'CLERK' job2, 'MANAGER' job3));
   
  --select * from mv_capabilities_table
  declare
    lv_sqltext varchar2(4000);
  begin
    execute immediate 'truncate table mv_capabilities_table';
    lv_sqltext := 'select * from
    (
     select deptno, job, sal from empX
    )
    PIVOT( max(sal) for job IN (''ANALYST'' job1, ''CLERK'' job2, ''MANAGER'' job3))
    ';  
    dbms_mview.explain_mview(lv_sqltext,'nested=>TRUE');
    commit;
  end;
  /

  Let me help you...
  I have done following and it run/view updated because I just replaced quickly with a complete word, because there are limitations for quickly updatable views:

  SQL> show user;
  USER is "SCOTT"
  SQL> create table empX as select * from scott.emp;
  
  Table created.
  
  SQL> alter table empX add constraint PK_empX_empno primary key (empno);
  
  Table altered.
  
  SQL>
  SQL> --drop  MATERIALIZED VIEW LOG ON empX;
  SQL> CREATE MATERIALIZED VIEW LOG ON empX with rowid, sequence(empno);
  
  Materialized view log created.
  
  SQL>
  SQL> --drop MATERIALIZED VIEW mv_empX;
  SQL> CREATE MATERIALIZED VIEW mv_empX
    2  REFRESH COMPLETE WITH rowid
    3  START WITH sysdate
    4  NEXT  SYSDATE + 1/1440
    5  AS
    6    select * from
    7    (
    8     select rowid emp_rowid, deptno, job, sal from empX
    9    )
   10    PIVOT( max(sal) for job IN ('ANALYST' job1, 'CLERK' job2, 'MANAGER' job3));
  
  Materialized view created.
  
  SQL> select * from mv_empx;
  
  EMP_ROWID              DEPTNO       JOB1       JOB2       JOB3
  ------------------ ---------- ---------- ---------- ----------
  AAAShcAAEAAAATTAAN         10                  1300
  AAAShcAAEAAAATTAAE         30
  AAAShcAAEAAAATTAAJ         30
  AAAShcAAEAAAATTAAC         30
  AAAShcAAEAAAATTAAA         20                   800
  AAAShcAAEAAAATTAAK         20                  1100
  AAAShcAAEAAAATTAAM         20       3000
  AAAShcAAEAAAATTAAD         20                             2975
  AAAShcAAEAAAATTAAB         30
  AAAShcAAEAAAATTAAI         10
  AAAShcAAEAAAATTAAL         30                   950
  
  EMP_ROWID              DEPTNO       JOB1       JOB2       JOB3
  ------------------ ---------- ---------- ---------- ----------
  AAAShcAAEAAAATTAAF         30                             2850
  AAAShcAAEAAAATTAAG         10                             2450
  AAAShcAAEAAAATTAAH         20       3000
  
  14 rows selected.
  
  SQL> begin
    2  dbms_mview.refresh('SCOTT.mv_empx');
    3  end;
    4  /
  
  PL/SQL procedure successfully completed.
  
  SQL> select * from mv_empx;
  
  EMP_ROWID              DEPTNO       JOB1       JOB2       JOB3
  ------------------ ---------- ---------- ---------- ----------
  AAAShcAAEAAAATTAAN         10                  1300
  AAAShcAAEAAAATTAAE         30
  AAAShcAAEAAAATTAAJ         30
  AAAShcAAEAAAATTAAC         30
  AAAShcAAEAAAATTAAA         20                   800
  AAAShcAAEAAAATTAAK         20                  1100
  AAAShcAAEAAAATTAAM         20       3000
  AAAShcAAEAAAATTAAD         20                             2975
  AAAShcAAEAAAATTAAB         30
  AAAShcAAEAAAATTAAI         10
  AAAShcAAEAAAATTAAL         30                   950
  
  EMP_ROWID              DEPTNO       JOB1       JOB2       JOB3
  ------------------ ---------- ---------- ---------- ----------
  AAAShcAAEAAAATTAAF         30                             2850
  AAAShcAAEAAAATTAAG         10                             2450
  AAAShcAAEAAAATTAAH         20       3000
  
  14 rows selected.
  
  SQL>
  

  So, the answer is Yes, we can use Pivot with Materialized view but:
  1 MV must be full refresh.
  2 oracle version should be 11 g; of course the pivot is available in Oracle 11 g.

  If this answers your question, please close the message, otherwise continue.

  These links may also be of interest:
  http://docs.Oracle.com/CD/B28359_01/server.111/b28313/basicmv.htm#i1007028
  http://docs.Oracle.com/CD/B28359_01/server.111/b28313/basicmv.htm#i1007007

  http://rwijk.blogspot.in/2009/06/fast-refreshable-MATERIALIZED-view.html

  And:

  Please see if (Note: 179466.1 - view to fast refresh materialized diagnose ORA-12015 / complex queries) help.

  Concerning
  Girish Sharma

• How to fast refresh materialized view parallel

  We have Oracle 11.2.0.1 on Redhat 5.2. We use a dozen views fast refresh materialized in our application.
  Occasionally refresh MV takes longer than the refresh interval.
  
  One of the ways to improve the performance of refresh MV is to update at the same time, for example

  http://www.dba-oracle.com/t_materialized_views_refreshing_performance.htm
  
  - Use parallel DML - Oracle author Michael Armstrong Smith notes "I've done parallel materialized view refreshing
   on tables recently and improved the load times considerably. Rather than having one load which took 2 hours,
   I run 4 parallel loads, one for each partition. The length of time for the whole process is now determined by
   how long the biggest partition takes to load. In my case, this is 40 minutes, with two 30 minute loads and one
   20 minute load.  Overall I am saving 1 hour 20 minutes. I can now add further partitions and do the same thing.
   My only limitation is the parallel loads because I don't have unlimited processing power.
  {code} My master tables are not partitioned, but think parallel will still better than non-parallel.
  
  Now the question, how to make refresh parallel. According to the paragraph cited above, Use parallel DML appears doing the job. Can someone  confirm that.
  
  We use {code}
  alter materialied view MV_OFFENSE parallel REFRESH FAST start with sysdate next sysdate+ 1/24;
  {code}to schedule refresh. Does the parallel clause here parallels query the MV or refresh the MV?
  
  Any other way to make MV refresh parallel?
  
  Thanks                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

  Hello

  Just search for * 577870.1*. But before you search, select ID of item in the source list.

  Hope this helps.
  Best regards
  Jean Valentine

• Fast refresh materialized view problems

  I have two databases (A and B).
  
  In A database, user NICK has a table called COLOUR_MASTER.
  Also in this database, NICK issues creating materialized command newspaper view colour_master with the primary key, including the new values (and Yes, there is a primary key defined for this table)
  In database B, there is a link of database called A_LINK, connect, Nick, identified by password using 'dbA ';
  In database B, user IAN also creates a materialized view CM_MV cool off quickly in select * from colour_master@A_LINK
  
  This statement is done correctly, and there are several million lines in CM_MV when it's done.
  
  Immediately, IAN issued this command:
  
  Start
  dbms_mview. Refresh ('CM_MV');
  end;
  
  .. .and after a small pause, it gets the error
  
  ORA-12008: error path refresh materialized view
  ORA-02068: following sever error of A_LINK
  ORA-03113: end of file on communication channel
  
  One more + "select count (*) of colour_master@A_LINK" + subject immediately manages to return the correct number of records in the database so A 3113 is a bit misleading, I think that, in this case have crash, the database remains accessible at all times, there is no network problem (database A and B are both located in the same server so it of not like I'm trying of) connect to halfway around the globe).
  
  The only thing I can think is that there is a permissions issue causes this error. The creation of MV because is made via a link, it is not a problem of IAN see all appropriate, but once the updates come into play, it is perhaps.
  
  Any who can shed light on why I can't do the fast refresh from the view, I can create joyfully, please?

  I'm surprised no one asked you to do what is obvious: try to do a select * from colour_master@A_LINK, without that being wrapped in a create materialized MATERIALIZED view. Just do a simple select * from...

  My bet is that you will get an error ORA_22992 can not use selected from the remote tables LOB Locators . And if you can't do a simple select * in a remote table, I suspect that you can reasonably expect Fireworks when you try to create or refresh a view materialized on such a thing!

  Here's a quick test:

  In the 1 database:
  =========

  SQL> create table A (col1 varchar2(2), col2 clob);
  Table created.
  
  SQL> alter table A add constraint A1 primary key (col1);
  Table altered.
  
  SQL> insert into A values ('AA','This is an entry into a clob column');
  1 row created.
  
  SQL> commit;
  Commit complete.
  
  SQL> create materialized view log on A with primary key including new values;
  Materialized view log created.
  

  In the database 2
  =========

  SQL> connect ims_global/v0yager1@ussd
  Connected.
  
  SQL> create materialized view B refresh fast as
    2  select * from A@remotedb_link;
  
  Materialized view created.
  
  SQL> exec dbms_mview.refresh('B');
  BEGIN dbms_mview.refresh('B'); END;
  
  *
  ERROR at line 1:
  ORA-12008: error in materialized view refresh path
  ORA-02068: following severe error from REMOTEDB_LINK
  ORA-03113: end-of-file on communication channel
  ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2251
  ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2457
  ORA-06512: at "SYS.DBMS_SNAPSHOT", line 2426
  ORA-06512: at line 1
  
  SQL> drop materialized view B;
  Materialized view dropped.
  
  SQL> create materialized view B refresh fast as
    2  select col1 from A@ims_link;
  
  Materialized view created.
  
  SQL> exec dbms_mview.refresh('B');
  PL/SQL procedure successfully completed.
  

  Which seems to reproduce your problem rather well, I think.

  I don't know if there is no work around for this. I mean, obviously you can't miss the CLOB column in your statement of 'create a MV' as I just did, but I don't know if you're still allowed or expected to be able to create a MV on lob columns and that such and such correction will allow you to do. Maybe someone else can provide this information.

  But at least you won't have to play Russian roulette with your init.ora parameters!

• Twitter: Your account may not perform this action. Please, refresh the page and try again.

  Since the update to Firefox 41.0.2 I couldn't use Twitter.com. When I try to tweet, favorite, or retweet the following error occurs. Your account may be able to perform this action. Please, refresh the page and try again. There are a couple of other users who have the same problem, but it was tinkered with Mozilla and the other pending.

  It started with the update to 41.0.2 and twitter works in all other browsers, but not Mozilla.

  Here's this other thread with the DIY: Impossible of Retweet, tweet or articles favorite on Twitter, even when I refresh the page.

  I think there must be a setting or a question Add on. Your extensions look pretty standard, so I'm leaning towards a parameter of the problem. You could test as follows:

  By default, Windows hides the .js extension. To make sure that the following steps work, you have to disable this feature, at least temporarily. This article has the steps: http://windows.microsoft.com/en-us/windows/show-hide-file-name-extensions

  Open the settings folder (AKA Firefox profile) current Firefox help

  • button "3-bar" menu > "?" button > troubleshooting information
  • (menu bar) Help > troubleshooting information
  • type or paste everything: in the address bar and press Enter

  In the first table of the page, click on the view file"" button. This should launch a new window that lists the various files and folders in Windows Explorer.

  Leave this window open, switch back to Firefox and output, either:

  • "3-bar" menu button > button "power".
  • (menu bar) File > Exit

  Pause while Firefox finishing its cleanup, then rename prefs.js to something like prefs.old.

  Launch Firefox back up again and it must use the default settings (for example, integrated home page). If you need to restore your previous session windows and tabs, go ahead and select restore previous Session from the history menu.

  Twitter works best? If so, we could try to understand the precise adjustment at fault or you could rebuild your settings. Or you can undo the change by renaming the new prefs.js to prefs.txt and rename prefs.old back to prefs.js (with Firefox closed, as you did before) and understand it through a little trial and error.