SYNC(EVERY interval ) deployment for Partitioned Tables

I am wondering if anyone has deployed the SYNC(EVERY "SYSDATE + interval") style in a Partition table environment where there is a large number of partitions but only a few the most recent 7days (lets say 30 days) have any inserts/updates. As I understand it, the SYNC(EVERY interval) creates a DBMS_SCHEDULER job for each partition and the job will submit as per the interval. We have about 5000 partitions on any given day; partitions get dropped and we add a new one for the fututre (we keep 30 days ahead).
1. Is it possible to modify the interval in these auto created Jobs? For Partitions older thasn X days i would want to run the job every Z hours
2. Disable the future jobs until the day required (enable 10 minutes before the partition becomes "active" -- gets data
Regards

Hi,
you can read about this in the manual (http://docs.oracle.com/cd/E11882_01/text.112/e24436/csql.htm#i997677). The manual says: "Each partition of a locally partitioned index can have its own type of sync (ON COMMIT, EVERY, or MANUAL). The type of sync specified in master parameter strings applies to all index partitions unless a partition specifies its own type." So it is possible to set for each partition its own sync type. This is possible with an ALTER statement:
ALTER INDEX index_name MODIFY PARTITION partition_name PARAMETER (paramstring)1. With the above alter you can change it
2. You can put a partition to MANUAL and then synchronize when necessary.
So if you know when the partition needs to change, you can change it possible with another job or procedure.
Herald ten Dam
http://htendam.wordpress.com

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    (   PARTITION "PRT_20091201" VALUES LESS THAN (TO_DATE(' 2009-12-02 00:00:00', 'SYYYY-MM-DD HH24:MI:SS', 'NLS_CALENDAR=GREGORIAN')...
    SELECT COLUMN_LIST FROM TABLE1   WHERE
    ( indate >= to_date(t_indate || t_timefrom, 'mm/dd/yyyy HH24:MI:SS'))                       AND
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    SELECT COLUMN_LIST FROM TABLE1   WHERE
    ( indate = to_date(t_indate , 'mm/dd/yyyy'))                        AND
    ( trim_to_time(indate) >= to_char(t_timefrom, ' HH24:MI:SS'))              AND
    ( trim_to_time(indate) <= to_char( t_timeto,   ' HH24:MI:SS'))              AND... Tx all
    TrI agree with David that the first example looked okay, but you should test to make sure. You can check individual partition contents by executing a query using the PARTITION option to specifiy a specific partition to check the values there.

  • SQL coding for partitioned tables

    Hi My tables are partitioned into 4 different partitions.. each one representing each quarter of a year.. do i need to specify the partition name in my sql query to grab the data or does oracle have the intelligence to go this partition based on my select statement..
    say q1, q2,q3,q4 table partitions and the table name is y1
    can i say
    <code> select * from y1 where date ='01/01/2005'</code>
    does this above written code takes you directly to the partition where this data is located..
    if it does how do we know that in the execution plan that it wasnot scanning the full table but rather one partition..
    thanks in advance

    have a look at the explain plan and you will see how oracle acces the partitioned table.
    All Oracle documentation can be found under
    http://otn.oracle.com/pls/db92/db92.docindex?remark=homepage
    You will probably find answer to your question under
    http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96524/toc.htm
    http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96533/toc.htm
    http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96520/toc.htm

  • Query Needed for Partitioning table

    Hi,
    I have created a table called Test. There is a column named business_name.
    There are several businesses like ABC,BCD,ADE....
    There will be lakhs of rows corresponding to each business, i mean there will be lakhs of entires corresponding to ABC,BCD....
    So i like to partition the table according to business_name so that the search will be more faster.As we had partitioned according to the business_name, i hope we need to search only on the partition corresponding to the particular business.
    can any one provide the Query to partition the table ' TEST ' according to the column ' business_name ' .
    Also can anyone provide Query to modify the already existing table ' TEST ' to incorporate partition for the column ' business_name '.

    We can partiton a table by the following
    create table Generalledger (
         record_id     number,
         business_name     varchar2(3)
         sales_dt     date,
         amount     number(10)
    partition by list (business_name)
    partition ct values ('ABC'),
    partition ca values ('BCD'),
    partition def values (default)
    But if we dont know the values like 'ABC' , 'BCD'
    ....how can we do the partitionuse SQL to generate part (or all) of your DDL statement. The following will output one partition statement for each business_name:
    SELECT DISTINCT 'partition p_' || BUSINESS_NAME || ' values (''' ||
                     BUSINESS_NAME || '''),'
    FROM GENERALLEDGER;

  • Open table/index node yields duplicates for partitioned objects

    The generated query for this operation (extracted from the log) is:
    select distinct t.table_name, t.num_rows, ao.status,
    +(select count(*) from sys.Dba_tab_columns c where t.table_name = c.table_name and t.owner = c.owner) columns,+
    +(select comments from sys.Dba_tab_comments c where t.table_name = c.table_name and t.owner = c.owner) comments,+
    +(select count(*) from sys.Dba_indexes i where t.table_name = i.table_name and t.owner = i.table_owner) indexed_columns,+
    t.avg_row_len,
    t.tablespace_name,
    t.avg_row_len * t.num_rows estimated_size,
    ao.last_ddl_time,
    ao.created,
    +(select count(*) from sys.Dba_dependencies where REFERENCED_OWNER = t.owner and REFERENCED_NAME = t.table_name) referenced_objects,+
    +(select count(*) from sys.Dba_triggers r where r.table_owner = t.owner and r.table_name = t.table_name) trigs+
    from sys.Dba_tables t,sys.Dba_objects ao
    where ao.owner = :OBJECT_OWNER
    and ao.owner = t.owner and ao.object_name = t.table_name
    and aO.GENERATED = 'N'
    AND aO.OBJECT_NAME NOT IN (SELECT OBJECT_NAME FROM RECYCLEBIN)
    AND aO.OBJECT_NAME NOT IN (SELECT MVIEW_NAME FROM SYS.Dba_MVIEWS WHERE :OBJECT_OWNER = OWNER)
    AND aO.OBJECT_NAME NOT IN (SELECT QUEUE_TABLE from Dba_queue_tables WHERE :OBJECT_OWNER = OWNER)
    AND not (   ao.object_name like 'AQ$_%_G'
    or   ao.object_name like 'AQ$_%_H'
    or   ao.object_name like 'AQ$_%_I'
    or   ao.object_name like 'AQ$_%_S'
    or   ao.object_name like 'AQ$_%_T' )
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    -- RECYCLEBIN is USER_RECYCLEBIN!
    order by 1
    Trouble is that joining dba_tables to dba_objects produces duplicates for partitioned tables.
    The same is true for the index node.
    Should I file a bug, or is it already picked up ?
    Cheers,
    Olivier.

    No answer after 8 days -> Reactivation.
    Tx.
    Olivier.

  • How to record partitioned tables in Data Modeler ?

    Hi,
    I have discovered the options for partitioned tables. Some questions remain, however.
    1) Static partitions
    For one table, a set of predefined partitions is set up in the data model. In certain situations, a new partition is added. Is it possible to generate alter table DDL from the model that will add this partition ?
    2) Dynamic partitions
    For another table, partitions are added and deleted on the fly (exhange partition). For this tabel, I would like to record just 1 partition, which is added when the tabels are created initially. It is not important to include the actual partitions when synchronizing with the database. Is it possible to skip this for a certain table (i.e. record this preference with the table, since it does not apply for all partitioned tables... ) ?
    Thanks,
    Richard.

    Hi Richard,
    For one table, a set of predefined partitions is set up in the data model. In certain situations, a new partition is added. Is it possible to generate alter table DDL from the model that will add this partition ?
    In Data Modeler version 4.1, ALTER TABLE ... ADD PARTITION statements are generated for new LIST partitions, but not for other types of partitions.
    For another table, partitions are added and deleted on the fly (exhange partition). For this tabel, I would like to record just 1 partition, which is added when the tabels are created initially. It is not important to include the actual partitions when synchronizing with the database. Is it possible to skip this for a certain table (i.e. record this preference with the table, since it does not apply for all partitioned tables... ) ?
    I've logged an enhancement request on this.
    Regards,
    David

  • Datapump skipping partitioned tables in the database

    I have run expdp on Oracle 10.2.0.4.0 on AIX 5.6 Platform, the export runs well exporting rows in the database but when it comes to partitioned tables in the database it export no rows for all the partitioned tables. When I run a normal exp/imp the partitioned tables are exported with all their rows.
    I used the following commands:
    expdp system/****** dumpfile=export_data.dmp directory=DATA_PUMP_DIR full=y logfile=export_dump.log
    Output for expdp on partitioned table:
    . . exported "SCOTT"."DEPT":"DEPT_2003_P1" 0 KB 0 rows
    . . exported "SCOTT"."DEPT":"DEPT_2003_P10" 0 KB 0 rows
    . . exported "SCOTT"."DEPT":"DEPT_2003_P11" 0 KB 0 rows
    . . exported "SCOTT"."DEPT":"DEPT_2003_P12" 0 KB 0 rows
    . . exported "SCOTT"."DEPT":"DEPT_2003_P2" 0 KB 0 rows
    . . exported "SCOTT"."DEPT":"DEPT_2003_P3" 0 KB 0 rows
    . . exported "SCOTT"."DEPT":"DEPT_2003_P4" 0 KB 0 rows
    . . exported "SCOTT"."DEPT":"DEPT_2003_P5" 0 KB 0 rows
    . . exported "SCOTT"."DEPT":"DEPT_2003_P6" 0 KB 0 rows
    . . exported "SCOTT"."DEPT":"DEPT_2003_P7" 0 KB 0 rows
    . . exported "SCOTT"."DEPT":"DEPT_2003_P8" 0 KB 0 rows
    . . exported "SCOTT"."DEPT":"DEPT_2003_P9" 0 KB 0 rows
    And for exp:
    exp system/****** file=export_dump.dmp full=y log=export_log1.log
    Result from the export log for partitioned tables:
    . . exporting partition DEPT_2005_P1 881080 rows exported
    . . exporting partition DEPT_2005_P2 1347780 rows exported
    . . exporting partition DEPT_2005_P3 2002962 rows exported
    . . exporting partition DEPT_2005_P4 2318227 rows exported
    . . exporting partition DEPT_2005_P5 3122371 rows exported
    . . exporting partition DEPT_2005_P6 3916020 rows exported
    . . exporting partition DEPT_2005_P7 4217100 rows exported
    . . exporting partition DEPT_2005_P8 4125915 rows exported
    . . exporting partition DEPT_2005_P9 1913970 rows exported
    . . exporting partition DEPT_2005_P10 1100156 rows exported
    . . exporting partition DEPT_2005_P11 786516 rows exported
    . . exporting partition DEPT_2005_P12 822976 rows exported
    I am not sure about this behavour from datapump, my database is more than 800GB and we want to migrate the database from AIX to LINUX.
    Thanks

    Sorry I just copied and pasted some extracts from my exp and expdp logs:
    For testing purposes I tried to run a datapump export of only 1 partitioned table in the database and its going through, but when I do the same on a full datapump export these partitioned tables are being exported with no rows.
    Export: Release 10.2.0.4.0 - 64bit Production on Tuesday, 02 August, 2011 12:18:47
    Copyright (c) 2003, 2007, Oracle. All rights reserved.
    Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
    With the Partitioning, OLAP, Data Mining and Real Application Testing options
    Starting "SYSTEM"."SYS_EXPORT_TABLE_01": system/******** dumpfile=DEPT.dmp tables=scott.dept logfile=dept1.log
    Estimate in progress using BLOCKS method...
    Processing object type TABLE_EXPORT/TABLE/TABLE_DATA
    Total estimation using BLOCKS method: 48.50 GB
    Processing object type TABLE_EXPORT/TABLE/TABLE
    Processing object type TABLE_EXPORT/TABLE/GRANT/OWNER_GRANT/OBJECT_GRANT
    Processing object type TABLE_EXPORT/TABLE/INDEX/INDEX
    Processing object type TABLE_EXPORT/TABLE/CONSTRAINT/CONSTRAINT
    Processing object type TABLE_EXPORT/TABLE/INDEX/STATISTICS/INDEX_STATISTICS
    Processing object type TABLE_EXPORT/TABLE/COMMENT
    Processing object type TABLE_EXPORT/TABLE/RLS_POLICY
    Processing object type TABLE_EXPORT/TABLE/CONSTRAINT/REF_CONSTRAINT
    Processing object type TABLE_EXPORT/TABLE/TRIGGER
    Processing object type TABLE_EXPORT/TABLE/INDEX/FUNCTIONAL_AND_BITMAP/INDEX
    Processing object type TABLE_EXPORT/TABLE/INDEX/STATISTICS/FUNCTIONAL_AND_BITMAP/INDEX_STATISTICS
    Processing object type TABLE_EXPORT/TABLE/STATISTICS/TABLE_STATISTICS
    . . exported "SCOTT"."DEPT":"DEPT_2009_P6" 1.452 GB 7377736 rows
    . . exported "SCOTT"."DEPT":"DEPT_2009_P7" 1.363 GB 6935687 rows
    . . exported "SCOTT"."DEPT":"DEPT_2008_P6" 1.304 GB 6656096 rows
    . . exported "SCOTT"."DEPT":"DEPT_2010_P7" 1.410 GB 7300618 rows
    . . exported "SCOTT"."DEPT":"DEPT_2008_P7" 1.296 GB 6641073 rows
    . . exported "SCOTT"."DEPT":"DEPT_2010_P6" 1.328 GB 6863885 rows
    . . exported "SCOTT"."DEPT":"DEPT_2007_P6" 1.158 GB 6568075 rows
    . . exported "SCOTT"."DEPT":"DEPT_2009_P5" 1.141 GB 5801822 rows
    . . exported "SCOTT"."DEPT":"DEPT_2011_P5" 1.162 GB 6027466 rows
    . . exported "SCOTT"."DEPT":"DEPT_2007_P7" 1.100 GB 6214680 rows
    . . exported "SCOTT"."DEPT":"DEPT_2011_P6" 1.106 GB 5762303 rows
    . . exported "SCOTT"."DEPT":"DEPT_2010_P5" 1.133 GB 5859492 rows
    . . exported "SCOTT"."DEPT":"DEPT_2007_P5" 1.001 GB 5664315 rows
    . . exported "SCOTT"."DEPT":"DEPT_2008_P5" 1.023 GB 5229356 rows
    . . exported "SCOTT"."DEPT":"DEPT_2010_P8" 1.078 GB 5549666 rows
    . . exported "SCOTT"."DEPT":"DEPT_2007_P8" 940.3 MB 5171379 rows
    . . exported "SCOTT"."DEPT":"DEPT_2008_P8" 989.0 MB 4920276 rows
    . . exported "SCOTT"."DEPT":"DEPT_2009_P8" 918.6 MB 4553523 rows
    . . exported "SCOTT"."DEPT":"DEPT_2006_P6" 821.0 MB 5220879 rows
    . . exported "SCOTT"."DEPT":"DEPT_2008_P4" 766.6 MB 3832262 rows
    . . exported "SCOTT"."DEPT":"DEPT_2006_P8" 747.9 MB 4753538 rows
    . . exported "SCOTT"."DEPT":"DEPT_2006_P7" 741.8 MB 4708242 rows
    . . exported "SCOTT"."DEPT":"DEPT_2010_P4" 734.2 MB 3713567 rows
    . . exported "SCOTT"."DEPT":"DEPT_2005_P7" 661.4 MB 4217100 rows
    . . exported "SCOTT"."DEPT":"DEPT_2005_P8" 647.1 MB 4125915 rows
    . . exported "SCOTT"."DEPT":"DEPT_2011_P4" 677.8 MB 3428887 rows
    I also tried to run a normal schema by schema export with the normal exp system/password command the and got my dump file which is about 300GB, when I run the imp system/password command and specify fromuser=<system > and touser=<schemas_in_the_dumpfile> seperated by commas, it just comes up with this message:
    Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
    With the Partitioning, OLAP, Data Mining and Real Application Testing options
    Export file created by EXPORT:V10.02.01 via conventional path
    import done in WE8ISO8859P9 character set and AL16UTF16 NCHAR character set
    Import terminated successfully without warnings.
    No tables are exported.
    If I specify the parameter imp system/password file=dept_export.dmp full=y log=dept_imp.log with the same dumpfile and it imports data from the dumpfile into my database.
    I am not sure what could be wrong with my dumpfile or my imp command and its parameters.

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