Perform aggregations in the Collections

Similar Questions

• performance degrades after the collection of statistics

  Oracle 11 g 2 OEL 5
  
  We have several very large tables (40 million lines and more) and recently we gathered stats on tables and it degraded our performance. He began to do table scans complete rather than use the index. The same queries are very well in other environments. Only difference is the collection stats. Logically, the performance should be better after the collection of statistics. But it is rather poor.
  
  I ran track 10053 on request and I see that the cardinality and the cost is medium high in the inefficient environment. A test, I have restored the old stats in the environment and it put everything back to normal - the query runs quickly again. Note that the restored stats were collected for more than a year. Should not collect us statistics regularly on very large tables?
  
  Thank you.

  Hello

  the stats of the default collection behavior is to determine the number of cells (i.e. a histogram is necessary or not and if yes, how accurately must be) automatically, depending on distribution and usage of the column of data in different types of predicates. This means that, in many cases collection histogram is almost a random process - once you get a histogram, the next time that you don't have, even if there is almost no change. This is (unfortunately) the normal behavior.

  I could quite at the bottom of your question - the optimizer esteem seem to be all correct in the second case, it is not clear to me why the plan that is so bad (there are also some other problems, as lines of 40G supposed to be returned by one of the nested loops, or estimation of cardinality missing for another nested loop). But in any case, histograms and bind variables do not mix, so you can just solve your problem by specifying method_opt => "for columns size 1' to disable the histograms for this table.

  Best regards
  Nikolai

• Confusion in the Collection

  Hi gurus

  I was reading a collection of topic of the doc oracle PL/SQL Collections and records and Steven Feuerstein and according to my understanding, there are 3 types of collections in oracle, associative, Nested table and Varray.

  Collection types

  1. associative array

  It is one of oracle collection type and they are unlimited, dimensional and sparse collections unique homogeneous elements... These types of collection are only available in PL/SQL, and we cannot create through SQL. We can use multigames operator in this collection
  Items in this collection type is in order.

  We cannot be initialized

  Nested table 2

  It is one of the oracle collection type and here are single dimensional, without limit and the collection of homogeneous items. This type of collection is available in PL/SQL and SQL and we can also create it through SQL.
  They are initially dense but can be scarce later through deletion. There is no order of the elements in the nested table.

  We use multigames operator in this collection.

  We have initialized.

  3 - Varray
  It is one of the oracle collection type and here are single dimensional, bounded and the collection of homogeneous items. This type of collection is available in PL/SQL and SQL and we can also create it through SQL.
  They are always dense. Whenever you define this type of collection you mention always the maximum no of items. Items in this collection type is in order.

  We cannot use multigames operator in this collection

  My question is that when we use these types of collections? I know only Varray collection, we can use it when we know the upper limit of the elements, but I confuse myself in Nested table and associative. It seems that the two are the same except that we can create Nested table via database level, but in the case of an associative array, we cannot create it.

  More we can perform the string indexing on the location of items in an associative array using the index clause, but in the case of nested by default on PLS_integer indexing table and we can perform localization of indexing on the strings.

  I appreciate if someone tell me when the associative array is used and when we use the nested table. Thanks in advance

  Concerning

  Muzz

  table.

  Muzz says:

  Thanks for the responses,

  @Billy, thanks for the nice collection, but still confusing explanation as to where we need to use the standard collection and where we need to use the associative collection?...

  A table has cells or elements. It also has a way for you to refer to the cell in the table.

  A normal array uses a sequential numbering of addressing or SEO, the cells in the table. In many languages the numbering starts at 0, in PL/SQL it starts at 1.

  A table will look so conceptually as follows (index = item)

  1 = John

  2 = Jack

  3 = Scott

  So in PL/SQL, the following can be used to refer to the first question/cell in the table:

  dbms_output.put_line( '1st item='|| array(1) );
  

  Or we can add a new item in the table as follows:

  array.Extend(1);    -- add a new iterm, e.g. item 2
  array( array.Count ) := 'foo'; -- array.Count is now 2 so we are using array(2) as reference
  

  Referring to a standard table is so easy - usually all that is needed to browse a table:

  for i in 1 .. array.Count loop
    -- do something with array item array(i)
  end loop;
  

  An associative array is a name-value pair. Here is an example of name-values (from list of symbols for the NYSE [NYSE]):

  AAC = Aac Holdings Inc.

  AAN is Inc.. Aaron

  ABR = Arbor Realty Trust

  To refer to an element in the table, we need to use the name for this value. For example

  dbms_output.put_line( 'AAC='|| array('AAC') );
  

  To add or update a name value:

  array('AAT') := 'American Assets Trust';
  

  If there is no name (reference) for the "AAT" string, a new name-value is added in the table. If there is already such a reference, its value is updated.

  There almost never associative tables in PL/SQL. 99% of the code that I see with the help of associative arrays is bad, because it is used a standard table with sequential numbering as reference of array index.

  Associative arrays are useful when receive and process the application name values. An example would be dealing with an allowed web PL/SQL and creating an associative array for the State and the CGI (Common Gateway Interface) variables for the current run.

• Some measures of the disc missing from the performance statistics since the update of U2 vc5. 0

  Hello

  Since our update of VC 5.0 vc5. 0 U2, the following metrics are not cumulative for past day/week/month/year plus:

  Average requests per second of reading virtual drive-

  Virtual disk - average writing queries per second

  Virtual disk - read latency

  Virtual disk - write latency

  Stats in real time for these metrics are fine, as well as more historical data before the update.

  vCenter is installed on a Windows Server 2008 R2, database VM: Oracle.

  I saw this problem on a VC 5.1 improved VC 5.0 with local MS SQL DB.

  Have these metrics out of historical performance data at all?

  Anyone with similar problems?

  Kind regards

  Michael

  What is the level of the collection on? If 1, try 2 or 3 and check?

  http://pubs.VMware.com/vSphere-51/topic/com.VMware.vSphere.monitoring.doc/GUID-25800DE4-68E5-41CC-82D9-8811E27924BC.html

• Need help to understand the collection

  Hi all

  I'm trying to understand the concept of collection, but when I look in the documentation that exists in google.ca, then, it seems very confusing. If someone suggest me or send me some simple examples and good collection and I really appreciate it. Thanks in advance.

  Concerning

  Line

  Thanks for the explanation, could you please explain what does really to take care of the index as a whole and clause varchar2 and if yes then what condition we use varchar2 index and in which condition we use index as a whole, be we just use index by integer in our daily practice. Really appreciate your response. Thank you

  Generally if you use collections, especially PL/SQL-only collections, your architecture is probably wrong. Collections are rarely necessary, but are often USED in the mistaken belief that they will help performance.

  The use of the collections usually DEGRADES performance, sometimes severely, and they are often used in a way that is not scalable. You should avoid using collections if possible.

  So don't use the collections AT ALL in your 'common practice '.

  For the rare cases where there is to use an array associative index type to use depends on the data type of the element that you will use for the index. If you plan to use a string, then you use INDEX OF VARCHAR2. If you plan to use an integer, then you use INDEX BY PLS_INTEGER.

  What type of index to use has NOTHING to do with performance.

  One of the WORST mistakes developers make is to use an associative array as target of a BULK COLLECT INTO instead of using a TABLE IMBRIQUEE. Collection in bulk is more often used in a FORALL statement so that the elements are accessible only in the order. Useds "indexed" access with associative arrays isn't even necessary or used.

• Reconstruction (Fast) of the collection fails with csQueryNotFound, error IidcTextots1

  We use the OTS to our UCM 11.1.1.4 implementation with only metadata for indexing.
  We added a few new metadata and ran Collection rebuild (fast regeneration).
  
  While he was in a State of cleaning at the end of reconstruction, our system DB files containing data files became complete.
  This caused our Collection rebuild (fast regeneration) due to cleaning, State = Interrupted =
  
  Content Server records showed the error:
  An error occurred while indexing. Cannot run the query"UallIndexerState(UPDATE/*+ INDEX (Revisions dIndexerState_Revisions) * / revisions)
  SET dIndexerState = "
  WHERE dIndexerState = ' ')'. ORA-01013: user has requested the cancellation of the current operation
  java.sql.SQLTimeoutException: ORA-01013: user has requested cancellation of the pending operation. [Details]
  
  wwScsLogDetails_Info
  ! csIndexerError! csDbUnableToExecuteQuery, UallIndexerState(UPDATE/*+ INDEX (Revisions dIndexerState_Revisions) * / revisions < br > SET dIndexerState = "< br > WHERE dIndexerState = ' ')! $ORA - 01013: user has requested the cancellation of the current < br > operation! syJavaExceptionWrapper, java.sql.SQLTimeoutException: ORA-01013: user has requested the cancellation of the ongoing operation < br >
  intradoc.data.DataException:! csDbUnableToExecuteQuery, UallIndexerState(UPDATE/*+ INDEX (Revisions dIndexerState_Revisions) * / revisions)
  SET dIndexerState = "
  WHERE dIndexerState = ' ')! $ORA - 01013: user has requested the cancellation of the current operation
  
  Our DBAs extended then the data files, and we tried to restart again the Collection rebuild (fast regeneration).
  Somehow, he began where he had ended. Yet once, it failed with the same error as above.
  
  Then we restarted our servers of the University Complutense of MADRID and he was always at the State cleanup, State = Interrupted = poster
  We again tried to run the rebuilding (Rebuild fast) pieces and this time it crashed almost immediately with the following error: index 20:07:03.111

  reconstruction work systemdatabase/6 08.11 batch datasource request added at index 0: IidcTextots1
  indexer/6 08.11 20:07:03.111 index reconstruction work cannot add commands: intradoc.data.DataException:! csQueryNotFound, IidcTextots1

  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.jdbc.JdbcWorkspace.addBatch(JdbcWorkspace.java:412)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.OracleTextHandler.batchExecution(OracleTextHandler.java:480)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.OracleTextHandler.updateDocuments(OracleTextHandler.java:429)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.OracleTextHandler.executeIndexer(OracleTextHandler.java:250)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.IndexerExecution.executeIndexer(IndexerExecution.java:597)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.IndexerDriverAdaptor.executeIndexer(IndexerDriverAdaptor.java:144)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.DocIndexerAdaptor.indexList(DocIndexerAdaptor.java:209)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.DocIndexerAdaptor.finishIndexing(DocIndexerAdaptor.java:131)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.DocIndexerAdaptor.indexDocument(DocIndexerAdaptor.java:156)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.IndexerBulkLoader.createBulkLoad(IndexerBulkLoader.java:367)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.IndexerBulkLoader.doWork(IndexerBulkLoader.java:171)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.Indexer.doIndexing(Indexer.java:411)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.indexer.Indexer.buildIndex(Indexer.java:319)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.server.IndexerMonitor.doIndexing(IndexerMonitor.java:1021)
  indexer/6 08.11 20:07:03.111 index rebuilt work to intradoc.server.IndexerMonitor$ 4.run(IndexerMonitor.java:842)
  
  
  
  Has anyone seen these errors before? Pointers from your experience?

  Hi David,

  (1) will disrupt it my collection research currently active? (My current collection of search works well, the documents are get properly indexed except on the new metadata)

  If new content get indexed properly, and then ignore the part of reconstruction of collection.

  (2) we look forward to perform the Collection rebuild with the option rebuild quickly. What are the chances of landing in a situation where we can to perform a full rebuild of Collection (we have > 2 M documents and who is consumea a lot of time and resources at the end server; and therefore our worst fears)

  Fast reconstruction is really needed when we have new fields of metadata added and need to be searchable.

  If this is where the problem happening, might then need some tracing more as an indexer *, systemdatabase with lots of comments for the following steps:

  1. Add a new custom metadata

  2 update Db configuration manager applet

  3. fast reconstruction

  4 to record with the new field populated and then perform a search.

  Capture the output of the server, then it must be analysed.

  Can you post the exact version of AAU where this problem arises and the version of DB? Copy the tag of version under AAU - Administration - Configuration information and posting it here.

  ORA-01013: user has requested the cancellation of the ongoing operation - is this still an active issue? If so, my suggestion would be to restart the receiver DB / service to clear all process of dead / guillotine.

  Thank you
  Srinath

  Published by: Srinath Menon on 16 August 2012 13:53

• Create the collection of query with bind variable

  Apex 4.0.2
  
  By Joel Re: Collection with variable binding the apex_collection.create_collection_from_query_b supports queries containing references to the bind variables (: P1_X) but I don't know how to use this feature, the documentation is not an example, just the API signature for the overloaded version has changed.
  
  If the query contains 2 bind session state variable references (: P1_X and: P1_Y), can someone please show an example of what to spend for the parameters p_names and p_values to the API?
  
  Thank you
  

  procedure create_collection_from_query_b(
      --
      -- Create a named collection from the supplied query using bulk operations.  The query will
      -- be parsed as the application owner.  If a collection exists with the same name for the current
      -- user in the same session for the current Flow ID, an application error will be raised.
      --
      -- This procedure uses bulk dynamic SQL to perform the fetch and insert operations into the named
      -- collection.  Two limitations are imposed by this procedure:
      --
      --   1) The MD5 checksum for the member data will not be computed
      --   2) No column value in query p_query can exceed 2,000 bytes
      --
      --
      -- Arguments:
      --     p_collection_name   =  Name of collection.  Maximum length can be
      --                            255 bytes.  Note that collection_names are case-insensitive,
      --                            as the collection name will be converted to upper case
      --     p_query             =  Query to be executed which will populate the members of the
      --                            collection.  If p_query is numeric, it is assumed to be
      --                            a DBMS_SQL cursor.
      -- example(s):
      --     l_query := 'select make, model, caliber from firearms';
      --     apex_collection.create_collection_from_query_b( p_collection_name => 'Firearm', p_query => l_query );
      --
      p_collection_name in varchar2,
      p_query           in varchar2,
      p_names           in wwv_flow_global.vc_arr2,
      p_values          in wwv_flow_global.vc_arr2,
      p_max_row_count   in number default null)
      ;

  HELEN wrote:
  Apex 4.0.2

  By Joel Re: Collection with variable binding the apex_collection.create_collection_from_query_b supports queries containing references to the bind variables (: P1_X) but I don't know how to use this feature, the documentation is not an example, just the API signature for the overloaded version has changed.

  If the query contains 2 bind session state variable references (: P1_X and: P1_Y), can someone please show an example of what to spend for the parameters p_names and p_values to the API?

  Not tried, but guess something like

  apex_collection.create_collection_from_query_b(
      p_collection_name => 'foobar'
    , p_query => 'select f.foo_id, b.bar_id, b.baz from foo f, bar b where f.foo_id = b.foo_id and f.x = to_number(:p1_x) and b.y = :p1_y'
    , p_names => apex_util.string_to_table('p1_x:p1_y')
    , p_values => apex_util.string_to_table(v('p1_x') || ':' || v('p1_y')))
  

• ON the collection of type of the object does not not with GROUP BY

  Hello
  
  I have an object of type with the collection defined as:

  create or replace type individu_ot as object (
     numero_dossier          number(10),
     code_utilisateur        varchar2(8 char),
     nom                     varchar2(25 char),
     prenom                  varchar2(25 char),
     map member function individu_map return number
  )
  /
  
  create or replace type body individu_ot is 
     map member function individu_map return number 
     is 
     begin
        return SELF.numero_dossier;
     end individu_map;
  end;
  /
  
  create or replace type individu_ntt is table of individu_ot
  /

  When I use simple SQL without no aggregation, the distinct keyword works well and returns me the separate entry of my type of object in the collection:

  SQL> select cast(collect(distinct individu_ot(indivmc.numero_dossier, indivmc.idul, indivmc.nom, indivmc.prenom)) as individu_ntt) as distinct_list
  from   site_section_cours    sisc
            inner join enseignant_section_mc   ensemc
            on sisc.code_session = ensemc.code_session and
               sisc.numero_reference_section_cours = ensemc.numero_reference_section_cours
            inner join individu_mc indivmc
            on ensemc.numero_dossier_pidm = indivmc.numero_dossier
  where  sisc.seq_site_cours = 6
  
  DISTINCT_LIST(NUMERO_DOSSIER,CODE_UTILISATEUR,NOM,PRENOM)                                                                                                                                                                                             
  ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  INDIVIDU_NTT(INDIVIDU_OT(15,PROF5,Amidala,Padmé))                                                                                                                                                                                                     
  1 row selected.

  However in SQL with a wide range in group by, the separate no longer works.

  SQL> select *
  from   (
           select sisc.seq_site_cours,
                  cast(collect(distinct individu_ot(indivmc.numero_dossier, indivmc.idul, indivmc.nom, indivmc.prenom)) as individu_ntt) as distinct_list
           from   site_section_cours      sisc
                     inner join enseignant_section_mc   ensemc
                     on sisc.code_session = ensemc.code_session and
                        sisc.numero_reference_section_cours = ensemc.numero_reference_section_cours
                     inner join individu_mc indivmc
                     on ensemc.numero_dossier_pidm = indivmc.numero_dossier
           group by sisc.seq_site_cours
  )
  where seq_site_cours = 6
  
  SEQ_SITE_COURS DISTINCT_LIST(NUMERO_DOSSIER,CODE_UTILISATEUR,NOM,PRENOM)                                                                                                                                                                                             
  -------------- ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
               6 INDIVIDU_NTT(INDIVIDU_OT(15,PROF5,Amidala,Padmé),INDIVIDU_OT(15,PROF5,Amidala,Padmé),INDIVIDU_OT(15,PROF5,Amidala,Padmé),INDIVIDU_OT(15,PROF5,Amidala,Padmé),INDIVIDU_OT(15,PROF5,Amidala,Padmé))                                                     
  1 row selected.

  There are cases where I need to return collections with more than one, separate entries in it.
  
  Is there something that I am missing?
  Thank you
  Bruno

  Not a bug, rather an undocumented feature.

  Here are some alternatives that you can test:

  (1) using the operator SET to eliminate duplicates:

  SELECT sisc.seq_site_cours,
         set(
           cast(
             collect(individu_ot(indivmc.numero_dossier, indivmc.idul, indivmc.nom, indivmc.prenom))
             as individu_ntt
           )
         ) as distinct_list
  FROM site_section_cours sisc
       INNER JOIN enseignant_section_mc ensemc
               ON sisc.code_session = ensemc.code_session
               AND sisc.numero_reference_section_cours = ensemc.numero_reference_section_cours
       INNER JOIN individu_mc indivmc
               ON ensemc.numero_dossier_pidm = indivmc.numero_dossier
  GROUP BY sisc.seq_site_cours
  ;
  

  (2) using the MULTISET with a subquery

  SELECT sisc.seq_site_cours,
         CAST(
           MULTISET(
             SELECT distinct
                    indivmc.numero_dossier, indivmc.idul, indivmc.nom, indivmc.prenom
             FROM enseignant_section_mc ensemc
                  INNER JOIN individu_mc indivmc
                          ON ensemc.numero_dossier_pidm = indivmc.numero_dossier
             WHERE sisc.code_session = ensemc.code_session
             AND sisc.numero_reference_section_cours = ensemc.numero_reference_section_cours
           )
           AS individu_ntt
         ) AS distinct_list
  FROM site_section_cours sisc
  ;
  

• From the Collections with DML operations in function

  Hi all
  
  Can we use the collections and perform DML operations on it in a function? I want to call this function through the SELECT statement.
  
  If it's possible, so which collection is ideal in the following scenario?
  Need to have three columns and several lines and want to run select on it.
  
  Thanks in advance.

  If I'm not demanding too much can we have given in this way?

  You are most welcome ;)

  SQL> with t as (
    2  select '11AA101' str from dual union
    3  select '11AA102' str from dual union
    4  select '11AA103' str from dual union
    5  select '11AA108' str from dual union
    6  select '11AA110' str from dual union
    7  select '555101' str from dual union
    8  select '555102' str from dual union
    9  select '555103' str from dual
   10  )
   11  select rtrim(extract(xmlagg(xmlelement("a",range||',') order by range)
   12                       ,'//text()'),',') ranges from (
   13  select decode(min(connect_by_root str),str,str,
   14                min(connect_by_root str)||' to '||str||' ('||count(0)||')') range
   15  from t
   16  where connect_by_isleaf = 1
   17  connect by substr(str,1,length(str)-3)=prior substr(str,1,length(str)-3)
   18      and prior to_number(substr(str,-3))+1 = to_number(substr(str,-3))
   19  group by str
   20  );
  
  RANGES
  ------------------------------------------------------------------------------------------
  11AA101 to 11AA103 (3),11AA108,11AA110,555101 to 555103 (3)
  

  Max
  [My Italian blog Oracle | http://oracleitalia.wordpress.com/2010/02/07/aggiornare-una-tabella-con-listruzione-merge/]

• How to export the collected addresses

  I carried on a new machine (win 7). I have properly exported and imported my address book that contains only 7 entries in my opinion.
  It is now only that I realize that Thunderbird uses the addresses of his "collected addresses" for a long time to suggest the person in the address bar, and that all of these hundreds of addresses are not registered in my address book.
  How can I get access to my (what must be hundreds of) "collected addresses" and get them on my new machine?

  Thank you

  Opens the address book, then select Tools-Export. Select the collected book to export.
  http://KB.mozillazine.org/Moving_address_books_between_profiles

• Suddenly, my Thunderbird does not list the collected addresses and don't 'Always allow remote content' addresses.

  (1) under address book, used for the book of MAC OS X, as well as the collected addresses and a third list, I can't remember.
  Now it lists only MAC OS address book.

  "(2) if I click on"Always allow remote content"it won't let me click on 'OK', I think that it says in the top left corner" adds: "but gives me an empty list.

  Thank you!

  If I'm more mac savy you we're in trouble. The last Mac I used has a black and white screen and used the floppy 3 1/2 "

  See Troubleshooting in the Thunderbird Help menu, and then click the display folder of your profile (Thunderbird knows where he is, even if I'm not) the History.mab file is your collected addresses.

• Unable to see the Collections in remote desktop Services in Server Manager

  It doesn't seem to be a category for Windows Server for some reason, so I apologize if this is in the wrong category:

  We recently had an administrator leave our of the it group, and he was the one who had set up our fund services / remote server.  Recently, we wanted to deploy another remote application and found that we were not able to see the "Collections" option in the server in remote desktop services manager.  The only option listed is "servers".  However to reactivate the account administrator and the server like him gave us all permissions to see the option of Collections and to deploy another remote application.

  My question would be, this is a policy of setting Group / somewhere that is limiting the other users of the full access to Office services in Server Manager remotely.  I looked everywhere on the server (and google) to see if I could find where this setting is vain.  Any suggestions/help would be greatly appreciated.

  Thank you!
  Heda

  Hello

  Server forums are in an another Microsoft Community to it.

  This community is mainly for users.

  Post your question in the TechNet Server Forums, as your question kindly is beyond the scope of these Forums.

  http://social.technet.Microsoft.com/forums/WindowsServer/en-us/home?category=WindowsServer

  See you soon.

• Win2012 Server. Y at - it a shortcut to reach the Collections to the remote desktop Services without going through the Server Manager

  Win2012 Server. Y at - it a shortcut to reach the Collections to the remote desktop Services without going through the Server Manager?

  Hello

  Post your question in the TechNet Server Forums, as your question kindly is beyond the scope of these Forums.

  http://social.technet.Microsoft.com/forums/WindowsServer/en-us/home?category=WindowsServer

  See you soon.

• How can I change the color of the plots (lines, points) in the collection Scattergraph plot

  For example, I go through a foreach loop and draw two points. How to distinguish this set of plots of the yet to come? How can I change the style, color and have separate lines (instead of on the line connecting everything) for each of my plots? I don't know how to set everything up, but it still does what he wants to do. TIA.

  Hello

  The problem you see occurs because of the following lines of code:

  The _data and _data2 scatterPlot3 value

  _data = scatterPlot3

  _data2 = scatterPlot3

  When you do this, you define _data as _data2 to reference an object of the simple concession - scatterPlot3.  Yes, even if you have (from the code you have posted at least) three slots in your collection, they are all pointing to the same object of point cloud.  So when you change the color for one, it changes the color for them all.  However, I think that you have fallen on the right solution in your last sentence.  If you want to have multiple locations on your ScatterGraph, each with its own color and style, they should each be separate and unique plots in the collection plot of your ScatterGraph.  Based on the code you posted, you'll see this if you comment just the two lines shown above.

  Please let me know if something is still uncertain.

  NickB

  National Instruments

• Anyone has an idea how to manually remove items that do not appear in the Collection, but take place on the device. Specifically, an audio book downloaded via Overdrive?

  Anyone has an idea how to manually remove items that do not appear in the Collection, but take place on the device.  Specifically, an audio book downloaded via Overdrive?

  Hello
  
  1. what type of files are in the audio book? Could you provide me with the file extensions?
   
  If you delete the information or files audio books could not show some information. I wouldn't recommend allows you to delete the files. If you want to remove them, you can contact overdrive support.
  
  Hope this information helps.

  Thank you, and in what concerns:
  Shekhar S - Microsoft technical support.

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