privileges for partitions and see them in object

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• Need to take stats twice for partitions and subpartitions?

  Hello world
  
  I'm taking a new approach for making statistics.
  
  First my system:
  
  Oracle 10.2.0.1
  3 instance RAC running on Linux RH AS 3, 64-bit
  
  I'm currently my stats using dbms_stats.gather_schema_stats with the option "rally car", it's good because only the data tables with stale and empty tables are being analyzed, but the process takes 3 to 4 days...
  
  Now I want to spread the statistical processes on nodes in the cluster using gather_table_stats (stale tables and empty tables only), while I was doing my procedure, I discovered the following, and here's where I need your help.
  
  If I run the following command:
  
  exec dbms_stats.gather_table_stats (ownname = > 'CACOSTA', tabname = > 'subpart_date', granularity = > 'SUBPARTITION', partname = > 'P200901')
  
  I can see the stats from my server BUT no stats have been taken for the partition.
  
  If I change the granularity on the "PARTITION": gather_table_stats
  
  exec dbms_stats.gather_table_stats (ownname = > 'CACOSTA', tabname = > 'subpart_date', granularity = > 'PARTITION', partname = > 'P200901')
  
  It will take the stats ONLY for the partition, but not for subparts.
  
  If I take the stats twice for 'PARTITION' and 'SUBPARTITION', I'll get all stats but it will take twice as long to complete.
  
  Is someone can you please tell me if I'm on the wrong approach? is it possible to understand that when I use the granularity of the "PARTITION", it can take the opportunity to use this same information it is collecting and provide statistics for subparts too to the RDBMS?
  
  Thank you and sorry for the long post.
  
  Carlos Acosta

  Carlos Acosta wrote:
  I'm taking a new approach for making statistics.

  First my system:

  Oracle 10.2.0.1
  3 instance RAC running on Linux RH AS 3, 64-bit

  exec dbms_stats.gather_table_stats(ownname=>'CACOSTA',tabname=>'subpart_date',granularity=>'SUBPARTITION',partname=>'P200901')

  I can see the stats from my server BUT no stats have been taken for the partition.

  If I change the granularity on the "PARTITION": gather_table_stats

  exec dbms_stats.gather_table_stats(ownname=>'CACOSTA',tabname=>'subpart_date',granularity=>'PARTITION',partname=>'P200901')

  It will take the stats ONLY for the partition, but not for subparts.

  If I take the stats twice for 'PARTITION' and 'SUBPARTITION', I'll get all stats but it will take twice as long to complete.

  Is someone can you please tell me if I'm on the wrong approach? is it possible to understand that when I use the granularity of the "PARTITION", it can take the opportunity to use this same information it is collecting and provide statistics for subparts too to the RDBMS?

  Carlos,

  This composite partitioning (range-list, range-hash) do you use?

  First of all I think it's important to understand that statistical subpartition will actually not to be used by the cost based optimizer in previous versions 10.2.0.4 (but in 10.2.0.4 only with bugs without patch installed, see the link to the message below) and 11.1.0.6:

  http://Oracle-Randolf.blogspot.com/2007/03/subpartitions-and-optimizer-statistics.html

  http://Oracle-Randolf.blogspot.com/2008/04/revisiting-subpartition-pruning-and.html

  http://Oracle-Randolf.blogspot.com/2009/03/partition-oddities-part-1-severe-bug-in.html

  So, I'd be interested to see a case in the database pre - 10.2.0.4 where the optimizer actually using subpartition level statistics; I have not yet found one.

  Second, he must be aware of what Oracle offers several ways how to maintain the different level of statistics:

  -Less consumption of resources, but less quality: collection of statistics on the lowest level (e.g. subpartition) only. I hope all subparts of the partition have statistics, the higher levels (partition / global) will be inspired by the aggregation. This way, you get the low quality statistics on levels higher (e.g. no histograms will be generated by aggregation, number of distinct values potentially quite inaccurate), but you do not need to collect statistics on these levels. Note that if once you have collected statistics on the higher levels (indicated by the "GLOBAL_STATS = YES" column in the DBA_\ * views STATISTICS) will not perform this statistical aggregation. You must first remove the statistics of higher level using DELETE\ * _STATS have enabled new aggregation (next time gather you statistics on low levels and all partitions (sub-) have statistics)

  For more information about this approach, see for example here: http://oracle-randolf.blogspot.com/2008/04/exchange-partition-and-aggregated.html

  -Consumption of resources, but of better quality most: separate statistics on all levels

  - And the new modes supported by 10.2.0.4 and especially 11.1.0.6: APPROX_GLOBAL AND PARTITION (10.2.0.4), true incremental global statistics in 11.1.0.6 and the new algorithm for estimating AUTO_SAMPLE_SIZE introduced in 11g:

  http://structureddata.org/2008/07/16/Oracle-11g-incremental-global-statistics-on-partitioned-tables/

  http://structureddata.org/2007/09/17/Oracle-11g-enhancements-to-DBMS_STATS/

  http://optimizermagic.blogspot.com/2009/02/maintaining-statistics-on-large.html

  Another very good synthesis about the management of statistics has recently been published by Karen Morton: http://karenmorton.blogspot.com/2009/02/new-paper-and-cj-date-advert.html

  So in your case a database pre - 10.2.0.4 you should not bother with subpartition statistics at all (or you can show me otherwise I would be interested), and you can then try to find out if you could live with the above statistical approach of "sum" by simply collecting statistics on the level of partition, or if you need to collect statistics on the partition and the global level separately (you did not mention your current strategy to the global level statistics).

  If you install the 10.2.0.4 patch game you have several options and statistics subpartition can be used by the optimizer (but only in the case of beach-list composite partitioning, as far as I know), for example by using the option of PARTITION AND APPROX_GLOBAL introduced in this version. Note that you must install the unique patches to get this working properly as described by my post and the optimizer of blog post for the development group.

  Kind regards
  Randolf

  Oracle related blog stuff:
  http://Oracle-Randolf.blogspot.com/

  SQLTools ++ for Oracle (Open source Oracle GUI for Windows):
  http://www.sqltools-plusplus.org:7676 /.
  http://sourceforge.NET/projects/SQLT-pp/

• Adding a few values for tab and use them in page

  I have an apex page that I want to use the same page for different tabs except that the query condition changes.

  Lets say, I have 3 tabs - Finance, sales, Marketing.

  I have a page which requests for the list of employees in a specific area (finance, sales, Marketing).

  I will eventually have 3 different types of queries, as below. The only change between them is the area.

  SELECT name, salary from employee where area = 'funding '.

  SELECT name, salary from employee where area = "sales";

  SELECT name, salary from employees where area = 'Marketing ';

  Is it possible to make my query in the following way to ensure that I get the TAB_ID of the value of the tab that I store.

  SELECT name, salary from employees where area is TAB_ID;

  What is the way to store one or more values of the TAB and use them in queries for a page.

  Your help is appreciated.

  Thank you

  user756931 wrote:

  Please update your forum profile with a real handle instead of 'user756931 '.

  I have an apex page that I want to use the same page for different tabs except that the query condition changes.

  Lets say, I have 3 tabs - Finance, sales, Marketing.

  I have a page which requests for the list of employees in a specific area (finance, sales, Marketing).

  I will eventually have 3 different types of queries, as below. The only change between them is the area.

  SELECT name, salary from employee where area = 'funding '.

  SELECT name, salary from employee where area = "sales";

  SELECT name, salary from employees where area = 'Marketing ';

  Is it possible to make my query in the following way to ensure that I get the TAB_ID of the value of the tab that I store.

  SELECT name, salary from employees where area is TAB_ID;

  What is the way to store one or more values of the TAB and use them in queries for a page.

  Assuming that by "tabs" you mean standard tabs and that the page contains a report of the region, so there is no way to do out of the box. Try to apply it using the standard tabs would hit two major obstacles:

  • He has no way of passing item values using tabs.
  • As all 3 tabs linking to the same page, they would be displayed under the current name of the page, which are strange and confusing.

  While it would be possible to work around this using the value ASK emanate a branch of each tab, and JavaScript, which would take you away from standard tab behavior, which is pretty weird, as is.

  Another possibility is to use the list rather than the standard tabs tabbed browsing, but which raise problems in integrating into the layout and navigation of the application structure.

  Therefore, I would propose two alternative approaches:

  1. by far the easiest way to implement this should forget the tabs and use a group of radio buttons or select list page to allow users to select the area, to include this item in the property Page to send Items of the region report and add dynamic action to refresh the report when the selection is changed. The report query would be:

  select
      e.name
    , e.salary
  from
      employees e
  where
      e.area = :p1_area
  

  In addition to being simple to understand and build, this has the advantage of being low maintenance and relatively future proof if the LOV which underlies the question of selection is dynamic and so automatically meets the future changes to the areas.

  2. If you are really determined to use tabs, then create 3 separate pages in finance, sales and Marketing with a tab for each, but locate the region report on an overall Page and display it conditionally on the necessary pages. The report query can then determine the desired area of the APEX_APPLICATION_TABS view by using the ID of the page to get the name of the associated tab:

  select
      e.name
    , e.salary
  from
      employees e
  where
      e.area = (select
                    aat.tab_label
                from
                    apex_application_tabs aat
                where
                    aat.application_id = :app_id
                and aat.tab_page = :app_page_id)
  

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  During the test a form, I sent many forms for signature. Now they clutter the page manage. Is there a way multi SELECT and delete them without doing them one by one?

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  Hi Camgran,

  Thanks for posting in the Forum the Microsoft community.

  From the description, it seems that you have a problem with the appeal hearing problem video chat via Facebook.

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