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

Tags: Database

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    create log view materialized on departments with rowid.

    create log view materialized on the premises with rowid.

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    Version Info:

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    PL/SQL Release 11.2.0.3.0 - Production

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Table truncated.

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PL/SQL procedure successfully completed.

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------------------------------ -
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REFRESH_FAST                   Y
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SQL> -- ^^^ This is correct ^^^

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PL/SQL procedure successfully completed.

SQL> select * from code_agg_mv;

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SQL> -- ^^^ Nope, same issue. ^^^
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PL/SQL procedure successfully completed.

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    Message edited by Tom N to include database version information.

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    Kind regards

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TABLE_NAME                     LAST_ANAL
------------------------------ ---------
ISSUE_OPEN_MV                  15-NOV-10

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CAPABILITY_NAME                P REL_TEXT MSGTXT
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PCT                            N
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REFRESH_FAST                   Y
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PCT_TABLE                      N ACTION   relation is not a partitioned table
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REWRITE_PARTIAL_TEXT_MATCH     Y
REWRITE_GENERAL                Y
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exec :in_action_id := 398385;

UPDATE action
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commit;
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    ********************************************************************************

INSERT /*+ IDX(0) */ INTO "TG"."MLOG$_ACTION" (dmltype$$,old_new$$,snaptime$$,
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VALUES
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call     count       cpu    elapsed       disk      query    current        rows
------- ------  -------- ---------- ---------- ---------- ----------  ----------
Parse        1      0.00       0.01          0          0          0           0
Execute      2      0.00       0.03          4          4          4           2
Fetch        0      0.00       0.00          0          0          0           0
------- ------  -------- ---------- ---------- ---------- ----------  ----------
total        3      0.00       0.04          4          4          4           2

Misses in library cache during parse: 1
Misses in library cache during execute: 1
Optimizer mode: CHOOSE
Parsing user id: SYS   (recursive depth: 1)

Rows     Row Source Operation
-------  ---------------------------------------------------
      2  SEQUENCE  CDC_RSID_SEQ$ (cr=0 pr=0 pw=0 time=28 us)


Elapsed times include waiting on following events:
  Event waited on                             Times   Max. Wait  Total Waited
  ----------------------------------------   Waited  ----------  ------------
  db file sequential read                         4        0.01          0.01
********************************************************************************

********************************************************************************

update "TG"."MLOG$_ACTION" set snaptime$$ = :1
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call     count       cpu    elapsed       disk      query    current        rows
------- ------  -------- ---------- ---------- ---------- ----------  ----------
Parse        1      0.00       0.01          0          0          0           0
Execute      1      0.94       5.36      55996      56012          1           2
Fetch        0      0.00       0.00          0          0          0           0
------- ------  -------- ---------- ---------- ---------- ----------  ----------
total        2      0.94       5.38      55996      56012          1           2

Misses in library cache during parse: 1
Misses in library cache during execute: 1
Optimizer mode: CHOOSE
Parsing user id: SYS   (recursive depth: 1)

Rows     Row Source Operation
-------  ---------------------------------------------------
      0  UPDATE  MLOG$_ACTION (cr=56012 pr=55996 pw=0 time=5364554 us)
      2   TABLE ACCESS FULL MLOG$_ACTION (cr=56012 pr=55996 pw=0 time=46756 us)


Elapsed times include waiting on following events:
  Event waited on                             Times   Max. Wait  Total Waited
  ----------------------------------------   Waited  ----------  ------------
  db file scattered read                       3529        0.02          4.91
********************************************************************************

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call     count       cpu    elapsed       disk      query    current        rows
------- ------  -------- ---------- ---------- ---------- ----------  ----------
Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.00       0.00          0          0          0           0
Fetch        2      0.70       0.68      55996      56012          0           1
------- ------  -------- ---------- ---------- ---------- ----------  ----------
total        4      0.70       0.68      55996      56012          0           1

Misses in library cache during parse: 1
Misses in library cache during execute: 1
Optimizer mode: CHOOSE
Parsing user id: SYS   (recursive depth: 1)

Rows     Row Source Operation
-------  ---------------------------------------------------
      1  SORT GROUP BY (cr=56012 pr=55996 pw=0 time=685671 us)
      2   TABLE ACCESS FULL MLOG$_ACTION (cr=56012 pr=55996 pw=0 time=1851 us)


Elapsed times include waiting on following events:
  Event waited on                             Times   Max. Wait  Total Waited
  ----------------------------------------   Waited  ----------  ------------
  db file scattered read                       3529        0.00          0.38
********************************************************************************

delete from "TG"."MLOG$_ACTION"
where
 snaptime$$ <= :1


call     count       cpu    elapsed       disk      query    current        rows
------- ------  -------- ---------- ---------- ---------- ----------  ----------
Parse        1      0.00       0.00          0          0          0           0
Execute      1      0.71       0.70      55946      56012          3           2
Fetch        0      0.00       0.00          0          0          0           0
------- ------  -------- ---------- ---------- ---------- ----------  ----------
total        2      0.71       0.70      55946      56012          3           2

Misses in library cache during parse: 1
Misses in library cache during execute: 1
Optimizer mode: CHOOSE
Parsing user id: SYS   (recursive depth: 1)

Rows     Row Source Operation
-------  ---------------------------------------------------
      0  DELETE  MLOG$_ACTION (cr=56012 pr=55946 pw=0 time=702813 us)
      2   TABLE ACCESS FULL MLOG$_ACTION (cr=56012 pr=55946 pw=0 time=1814 us)


Elapsed times include waiting on following events:
  Event waited on                             Times   Max. Wait  Total Waited
  ----------------------------------------   Waited  ----------  ------------
  db file scattered read                       3530        0.00          0.39
  db file sequential read                        33        0.00          0.00
********************************************************************************
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    Let me know if you need more info... would be happy to provide.

    My guess would be that you were once a very large transaction that inserted a large number of rows in this table. So the table segment is big enough now and the high watermark is average at the end of this segment, causing a full scan table to analyze a large number of empty blocks and retrieve the two lines.

    You can issue a truncation on this table of $ MLOG: which would free up the empty blocks and brings back the high-watermark in the first block.

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    System.out.println ("addRowByByteArray: unexpected exception:" + ex.getMessage ());

    } {Finally

    If (pstmt! = null)

    pstmt. Close();

    }

    return (ret);

    }

    public int addRowByBinaryStream (String coffeeName, String value)

    throws SQLException {}

    PreparedStatement pstmt = null;

    int ret = - 1;

    try {}

    Byte [] buf = value.getBytes ();

    ("System.out.println (" write the following: ("+ coffeeName +",) "+ value +" ")");

    String sql = "INSERT INTO COFFEE_DESCRIPTIONS VALUES(?,?)";

    pstmt = this.conn.prepareStatement (sql);

    pstmt.setString (1, coffeeName);

    pstmt.setBinaryStream (2, ByteArrayInputStream (buf) new, buf.length);

    pstmt.executeUpdate ();

    RET = 0;

    } catch (SQLException e) {}

    System.Err.println ("addRowByBinaryStream: SQLException:" + e.getMessage ());

    } catch (Exception ex) {}

    System.out.println ("addRowByBinaryStream: unexpected exception:" + ex.getMessage ());

    } {Finally

    If (pstmt! = null)

    pstmt. Close();

    }

    return (ret);

    }

    public String retrieveRowByByteArray (String coffeeName)

    throws SQLException {}

    Dim description As String = null;

    Byte [] buf;

    PreparedStatement pstmt = null;

    try {}

    String sql =

    'select COF_DESC +.

    "of COFFEE_DESCRIPTIONS +.

    "where COF_NAME =?";

    pstmt = this.conn.prepareStatement (sql);

    pstmt.setString (1, coffeeName);

    ResultSet rs = pstmt.executeQuery ();

    If (RS. Next {}

    buf = rs.getBytes (1);

    Description = new String (buf);

    }

    } catch (SQLException ex) {}

    System.Err.println ("retrieveRowByByteArray: SQLException:" + ex.getMessage ());

    } catch (Exception e) {}

    System.out.println ("retrieveRowByByteArray: unexpected exception:" + try ());

    } {Finally

    If (pstmt! = null)

    pstmt. Close();

    }

    return description;

    }

    public String retrieveRowByBinaryStream (String coffeeName)

    throws SQLException {}

    Dim description As String = null;

    int len = 0;

    Byte [] buf = new byte [1024];

    PreparedStatement pstmt = null;

    try {}

    String sql =

    'select COF_DESC +.

    "of COFFEE_DESCRIPTIONS +.

    "where COF_NAME =?";

    pstmt = this.conn.prepareStatement (sql);

    pstmt.setString (1, coffeeName);

    ResultSet rs = pstmt.executeQuery ();

    If (RS. Next {}

    Len = rs.getBinaryStream (1) .read (buf);

    Description = new String (buf);

    }

    } catch (SQLException e) {}

    System.Err.println ("retrieveRowByBinaryStream: SQLException:" + e.getMessage ());

    } catch (Exception ex) {}

    System.out.println ("retrieveRowByBinaryStream: unexpected exception:" + ex.toString ());

    } {Finally

    If (pstmt! = null)

    pstmt. Close();

    }

    return description;

    }

    }

    If there is any question, please do not hesitate to let me know.

    Kind regards

    Cindy

  • View materialized with joins

    Dear Dev/DBA,

    I have the following scenario:

    SQL > CREATE TABLE T1 (ID NUMBER (3), NAME VARCHAR2 (10));
    SQL > CREATE TABLE T2 (identification NUMBER (3), NAME VARCHAR2 (10));

    T1 contains records with the number ID of 10 to 80 and the T2 having the ID of 90 to 170

    SQL > SELECT * FROM T1 JOIN SELECT ALL * T2
    It gives all the records in the 2 tables.

    I intend to create a materialized view (like CREATE MATERIALIZED VIEW V_TAB REFRESH ON COMMETTRE AS SELECT * T1 JOIN ALL SELECT * FROM T2) and it seems that I can't do with the error ORA-12054, also said oracle documentation that materialized view can only be used with a simple join.

    Do you have another solution?
    Note that materialized views can be used to improve the queries.

    Thanks in advance

    In addition VIEWS are not used in case you should query the tables attached, having a lot of records.

    I have no idea what you mean here, but as you yourself pointed out you not join. You use a UNION all.

    The materialized view is a database object that contains the data (and not only a SELECT query), and it is used to improve the speed of queries.

    Thanks for the lesson, but it seems that materialized views do not work in your case.

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  • 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

  • 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

  • Materialized view does not quickly refresh with sysdate in where clause

    Hi all

    I am trying to create a view, materialized with sysdate in where clause. This makes the complex query, and so I can't create a quick refreshment mview.

    I tried to create with rowid too, but it does not create a quick refreshment.

    I was wondering if someone can advise me, how can I accomplish this task, which would be really appreciated.

    The query is:

    create a materialized view PS_MEETING

    build the DEFERRED payment

    Refresh quickly with rowid

    as

    SELECT *.

    MEETING M

    WHERE state_desc = 'VIC '.

    OR Meet_date < TRUNC (SYSDATE);

    the behavior is documented: http://docs.oracle.com/cd/E11882_01/server.112/e25554/basicmv.htm#DWHSG8201

    General restrictions on update quickly

    The definition of the materialized view query is limited as follows:

    • The materialized view must not contain references to non-repetitive phrases such as SYSDATE and ROWNUM .

    So I guess that you would need a more static than sysdate condition - or another strategy update.

  • What is the difference between the view materialized and normal view?

    Please contact the difference in detail with an example.


    Thank you.

    Views materialized hold the data and updated periodically based on the definition of the query.
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  • 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!

  • 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.

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