PARTITION-level statistics under

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• Remove the global statistics, leaves in 10.2.0.3 partition level.

  Hello
  There 10.2.0.3 node 4 rac data warehouse, most of the queries are with predicate associated with partition key.
  So, there's a lot of cutting partition involved.
  Currently, data loading is done via the swap partition and then only that his stats of score is calculated.
  We have global stats (global_stats = NO in dba_tables).
  Is this right way to treat the 10.2.0.3 statistics?
  I know that 10.2.0.4 brings us copy stats solution, but with 10.2.0.3?
  How to manage updates statistics, related to shared partition.
  As much as I know there is no way to incrementaly update the global statistics, so granuality = > partition seems
  the only way.
  If I had properly, Oracle calculates global statistics level partition statistics if there is no global stats based on 'true '.
  The only issue that I know is related to the estimation of NDV, but I think we can with that life.
  Please advice.
  Kind regards.
  GregG

  Really, you need to collect time partition and overall stats. If a query spans more than 1 partition, then global stats are generally used. Stats of the partition are used when there is only a single partition access.

  There is no way in 10g for additional aggregate statistics. Which was introduced in 11g. Aggregate statistics are collected by a table scan, they are not aggregated over 10g, 11g only with active differentials.

  However, there is a granularity again introduced in 10g called APPROX_GLOBAL AND PARTITION. This is part of the patch 6526370.

  I would recommend that collect you global or use the PARTITION AND of APPROX_GLOBAL, but it is better to have a few global statistics.

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

  --
  Kind regards
  Greg Rahn
  http://structureddata.org

• Is it possible to copy a table partitioned to another different partitioned table statistics?

  Hello

  Using oracle 11.2.0.3 and study the possibility to copy his stats of a hash range partitioned table to another partitioned table range-hash.

  New table is based on the old table with the same structure, about right. of lines.

  estimate_percent auto not practical sample - size took 10 hours in tests and careful to just down for example 1% percent estimate.

  Is it possible to simply copy the stats on our old table

  Thank you

  Mismatch / typo in statid?

  statid-online "CURRENT_STATS."

  statid => ' CURRENT_STATUS

• How to disable constraint on a table to the partition level

  Hello

  I want to load data in a particular partition of a table.

  I want to disable constraints on the particular partition of the table during load and I am currently loading.

  I don't want to disable the constraint on the entire table and allow him later... as it may take more time...

  Similar to the way in which we can mark the index of a particular "UNUSABLE" during a bulk load score, is it possible to do the same for the constraints also?

  You can not

• Applications and levels of under by default UI 5.6?'

  I thought that 5.6 would allow Applications and levels must be created in the default user interface or the custom user interface and then you can view the collection of either env?

  It seems that I can create a group of 'applications' in the default user interface, but not the application levels.  If I create a "pane App" group in default user interface and then create an 'app' group and try to associate the application layer to the app group, it won't let me.

  Also, if I create an application in the custom user interface is not visible as an application in the default user interface.

  -MattG

  It's the custom in the UI by default/vSphere groups are not related.  Your app in the custom user interface groups are not exposed in the user interface of vSphere.

• EPUB3 - TOC (navigation) - the unwanted 'level' / dash under the first TOC title?

  Hello

  I use InDesign CC (2014) and export to ePUB3.

  The table of contents has at least 2 levels and export using "Multi Level (TOC Style). The table of contents Style has all the styles that are defined at the level of the first or the second. However when the EPUB is created he puts the first TOC title as the first level (in its own < ol > tag), then all the other titles of the table of contents at level 2 and 3, even if the first title in the table of contents should have been placed at the same level i.e. it should not be only 2 levels 3?

  
  

  Anyone know how to stop what is happening?

  Thank you very much.

  Angèle

  I just worked on what I was doing wrong - his works now.

  In the InDesign "TOC Navigation" style that I had no level 1 styles defined in level 1 and level 2 set to level 2. Instead I put them as level 2 and 3, so I think it was confusing things.

  Angèle.

• Auto level music under voiceover?

  Sorry, but I don't even have the right words to get this feature. Google failed me this time. I use hearing to only a few specific things and I'm certainly not an experienced user.

  Someone on the Premiere Pro forum wondering if Premiere Pro has the SmartMix with Premiere Elements feature. Apparently, he turn that music down to account for the voice, keeping the overall volume of the same.

  While Premiere Pro does have it, looks like maybe hearing could have such a thing?

  Is there a way to focus on a lead rather than another and keep the overall volume of the same? I imagine the speed of the ramp upward and ramp down the volume of the music should be adjustable. I can certainly tell them how to do it manually, but perhaps hearing has such a feature to do it automatically?

  Thank you...

  The effect you are after is called 'Dodge '. For this you need "side chaining" an item available for your software. Hearing can do all that, but it's not simple to implement. This video tutorial should help you.

  Sidechaining in hearing CS6 | Short and Suite | Adobe TV

• Level 3 Table of contents are a book with topics of level 2 under

  I'm a framework any 9 RH8. I have traced my styles in Conversion, and on FM settings I have implemented the TOC styles while titre3 was a police more indented and smaller than Title2. But when the table of contents are generated in HR, I get something like this:

  HEADING 1

  Section 2A

  heading 3a

  Heading 3b

  section 3 c

  Section 2B

  Section 2 c

  I've attached screenshots.

  Try to structure your table of contents FM differently. I was having a similar problem and found that if I change the indentation of the OCD FM I'm importing, I can change the structure of the table of contents of HR.

  Burtin

• Collect statistics on each partition - 11.2.0.3?

  Hello

  Using 11.2.0.3 and partition oracle to Exchange loading to load about 7 million rows in each partition.

  Concluding that if you run the query against the partitions loaded the same day, then expect that the query slower than if a day until that data gathers stat automatically.

  Thought would try to use

  DBMS_STATS.gather_table_stats ('schema', 'table_name', partname = > 'partition_name'); but ultra slow.

  but when look at sql_plan_monitor seems to be analyzes all partitions.

  How can we ensure fair stats collection is quick to ensure that his stats updates for the last partition after loading?

  Thank you

  Granularity depends on:

  http://docs.Oracle.com/CD/E11882_01/AppDev.112/e40758/d_stats.htm#ARPLS68582

  If you specify "PARTITION", then he will stick to the partition level statistics.

  You must then consider what happens to the OVERALL statistics and when?

• 11g: hash subpartition

  Hi expert,
  a suggest on hash subpartition on 11g
  I have a table
  
  MSGID TIME_STAMP NAME ATTRIBUTE
  01/10/2010 1, AA1 BBB
  01/10/2010 2 AA2 BBB
  3 01/10/2010 CCC AA3
  01/11/2010 4, AA4 CCC
  01/11/2010 5, AA5 DDD
  01/11/2010 6, AA6 DDD
  
  
  For example I want to do: range-Hash
  

  create table
  ...
  PARTITION BY RANGE(TIME_STAMP)
  INTERVAL( NUMTODSINTERVAL(7,'DAY'))
  SUBPARTITION BY HASH(MSGID)
  SUBPARTITIONS 10 STORE IN (USR_DATA) 
     ( PARTITION P_FIRST_01092010 VALUES LESS THAN
          (TO_DATE('01/09/2010','MM/DD/YYYY')))
  ...

  Partition on beach is ok. I have not quite undestand, which hash subpartition
  
  Oracle BLOG:
  "Hash secondary partitions do not need statistical, because the optimizer can derive all necessary statistics to the partition level statistics accurately, because hash partitions are all approximately the same size because of the linear hashing algorithm."
  
  I undestand that this partition uses the algoritm hash to store data on a different partition, in my case 10 subpartition, for each partition of the range (date).
  
  That's the problem?
  
  Another question. I can't drop the P_FIRST_01092010, because it is the first (and start by) partition. If I want to delete it, I'll create an another 'first partition Right?
  
  Thank you very much as usual.
  
  See you soon,.
  Lain

  I can truncate the first partition, well. But I can bring the next partition?

  Yes. You can delete all other partitions except the initial one. An attempt to drop the initial parition will cause "ORA-14758: last partition in the beach section cannot be deleted.

  I have something like that in my code:

  EXECUTE IMMEDIATE 'ALTER TABLE mytab '||CASE WHEN partition_position = 1 THEN 'TRUNCATE' ELSE 'DROP' END||' PARTITION '||parition_name;
  

  Also, the mytab table is partitioned by range (interval) and Sub partitioned by hash, as in your case.

• V/S GLOBAL LOCAL Stats

  When Oracle uses GLOBAL level statistics, and when he uses his stats level PARTITION?
  
  for example, I know if I say PART_KEY = 10 then it will use stats level Partition... and when I do not specify part_key in SQL, it uses its global stats... Looking for all other scenarios where it will use one or the other?

  user4529833 wrote:
  So if I see any KEYS or KEY (I) in the execution plan, can, I concluded that he had used the GLOBAL statistics?

  Basically, Yes, but there are variations, for example you might have a range composite-list partitioning where you can carve out a single range partition, but you have an unknown number of list partitions in this partition of unique beach to visit. Then we saw the KEY / KEY (I), but still the optimizer could use the partition level statistics (in the execution plan you would see probably a RANGE PARTITION row to indicate).

  Also, below 10.2.0.4, Oracle does not use, subparitition stat even if I say sub_part_key = 10?

  Yes, as you can see in my test case. This generally isn't a problem if you use hash composite partitioning (since you don't treat a subpartition directly), but as already stated, can be a problem if you have for example a list subpartitions which differ considerably in size / model data / tilt etc.

  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/

  Published by: Randolf Geist on December 11, 2008 17:21

  More details about the added pruning

• Collection of statistics on partitioned and non-partitioned tables

  Hi all
  My DB is 11.1
  
  I find that the collection of statistics on partitioned tables are really slow.
  

  TABLE_NAME                       NUM_ROWS     BLOCKS SAMPLE_SIZE LAST_ANALYZED PARTITIONED COMPRESSION
  ------------------------------ ---------- ---------- ----------- ------------- ----------- -----------
  O_FCT_BP1                        112123170     843140    11212317 8/30/2011 3:5            NO                    DISABLED
  LEON_123456                      112096060     521984    11209606 8/30/2011 4:2           NO                   ENABLED
  O_FCT                           115170000     486556      115170 8/29/2011 6:3            YES         
  
  SQL> SELECT COUNT(*)  FROM user_tab_subpartitions
    2  WHERE table_name =O_FCT'
    3  ;
  
    COUNT(*)
  ----------
         112

  I used the following script:

  BEGIN
    DBMS_STATS.GATHER_TABLE_STATS(ownname          => user,
                                  tabname          => O_FCT',
                                  method_opt       => 'for all columns size auto',
                                  degree           => 4,
                                  estimate_percent =>10,
                                  granularity      => 'ALL',
                                  cascade          => false);
  END;
  /

  It costs 2 minutes for the first two tables to gather statistics respectively, but more than 10 minutes for the partitioned table.
  Time of collection of statistics represents a large part of the time of the whole lot.
  Most of the work of the lot are at full load, which case all partitions and subpartitions will be affected and we cannot collect just specified partitions.
  
  Does anyone have experiences on this subject? Thank you very much.
  
  Best regards
  Leon
  
  Published by: user12064076 on August 30, 2011 01:45

  Hi Leon

  Why don't collect you statistics to the partition level? If your data partitions will not change after a day (score range date for ex), you can simply do to the partition level

  GRANULARITY-online 'SCORE' for partition level and
  GRANULARITY-online 'SUBPARTITION' for subpartition level

  You collect global stats whenever you can not require.

  Published by: user12035575 on August 30, 2011 01:50

• How can I make use of TC partitions and make sure that the file analysis is on the right partition?  I do not see the partitions that I have done in the Finder, but I can drag and drop the files in the folder 'Data' unique under Finder/Shared/TC.

  MacBook Air, OSX 10.10.3, 128 GB; 2 TB Time Capsule ME177LL/A.

  Final objective: use Time Capsule as a Time Machine for my MacBook Air and as a storage solution for large files that I don't want permanently on my MacBook Air.

  So far, I've implemented the TC and set up Time Machine on the TC.  I was able to create 2 partitions on the TC using disk utility then that TM was a backup and the disk was recognizable in disk utility.

  Under Finder/shared, I see the TimeCapsule 'airport', and when I click on it it is a file called "Data".  I was expecting to see my two partitions here.  Under 'Features' is a ' Zissou31 MacBook Air (3)"sparsebundle file and I can also create folders here and drag and drop files on the TC here.  I can see the partitions in disk utility, but how do I see/use the partitions I created in the Finder?

  I fear that this may not be set up correctly and I'm either losing on an entire partition I created or these files dragged/dropped may be at risk of overwriting of TimeMachine.  How can I make sure that the file analysis is on the appropriate partition?

  I disabled TimeMachine and go back to see if I could 'point' to one of the partitions, but the "Data" folder is the only thing that TimeMachine seen.  How do I point time Machine for one of the partitions?

  Thank you!

  In addition, in disk utility, I can see one of the partitions TC is related to the time Machine, indicated by the icon Time Machine green bottom left, but two partitions seem to fall under "Zissou31 of the MacBook Air (3) .sparsebundle.

• How to collect statistics for a partition?

  Hi all

  I create a table partition. I need to collect statistics for this partition only. Before I used to analyze it, but now I need to analyze using DBMS_STATS.

  What is the best way to analyze the partition using DBMS_STATS?

  How long will it take to complete?

  How can I estimate the time of accomplishment for DBMS_STATS before starting?

  Thank you

  I create a table partition. I need to collect statistics for this partition only. Before I used to analyze it, but now I need to analyze using DBMS_STATS.

  What is the best way to analyze the partition using DBMS_STATS?

  Follow the documented instructions: INCREMENTIELLE TRUE and GRANULARITY on AUTO.

  See the section "Partitioned objects statistics" the doc of performance tuning

  http://docs.Oracle.com/CD/B28359_01/server.111/b28274/stats.htm#i42218

  With partitioned tables, the new data is usually loaded into a new partition. As new partitions are added and loaded, statistical data must be collected on the new partition and statistics need to be updated. If the INCREMENTAL for a partition table is set to the value TRUE , and collect you statistics on the table with the GRANULARITY parameter defined on AUTO , Oracle will collect statistics on the new partition and update statistics on the overall table by scanning only those partitions which have been modified and not the entire table. If the INCREMENTAL for the partitioned table is set to the value FALSE (the default), then a full table scan is used to maintain the global statistics. It is a highly resource intensive and time-consuming for large party.

  How long will it take to complete?

  No way to know - using an estimate of 10% takes less time than with an estimated of 40%, which takes less time than using 100%.

  How can I estimate the time of accomplishment for DBMS_STATS before starting?

  By comparing the amount of data and the percentage of estimate for the data that you have in the other partitions and the time required to collect statistics on other partitions.,.

• Behavior of batch writeback in level of EP partition transactions

  Hello

  We use EntryProcessors to perform updates on several entities stored in the cache partition. According to the documentation, consistency manages all updates in a 'sandbox' and then atomically commits them to the carrier of the cover sheet.

  The question is, when using writeback, ensures consistency all updated in the same "transaction level partition' entries will be present in the same operation"storeAll?

  Once again, according to the documentation, the behavior of lazy writer thread is this:

  • The thread is waiting for an entry ripe become queued.
  • When an entry reached its climax, the thread removes all blackberries and soft-ripe entries in the queue.
  • The thread then writes all the entries of blackberries and mulberries soft via store() (if there is only the single mature entry) or storeAll() (if there are several entries of blackberries/soft-ripe).
  • Then, the thread again (1).

  If all the entries updated in the same transaction level partition become ripe or soft mature at the same time they will be present in the operation of storeAll. If they are not soft-blackberries/mulberries at the same time, they cannot all be present.

  So, everything depends on the behavior of the validation of the transaction of partition level, so all entries postmarked even for the update, they will all become ripe at the same time.

  Is anyone know what behavior we can expect in this regard?

  Thank you.

  Hello

  This comment is relevant to 3.7.1. I guess the same thing remains can be found in paragraph 12.1, but have not checked yet.

  There is no contract between "transactions level partition" and cache store.

  In practice, in the case of writing-although

  -storeAll() is never called, updated entries are transferred to call store() one by one.

  writeback cace

  -It works according to documentation (which you cited) without consent and limits 'partition level transactions

  Kind regards

  Alexey