Can I create an index on a partitioned table bitmap?

Similar Questions

• can we create an index only for a given value in a column?

  desc TAB_A
  -----------------
  id1  Number Primary key,
  id2  Number,
  col1 varchar2(10),
  col2 varchar2(10)
  
  
  
  select count(*) from TAB_A
  --------------------
  4587609
  
  select count(*) from TAB_A where id2=10 
  ------------------
  6000
  
  Here is my question
  
  
  can i create an index only for the cloumn id2 only for the value 10?

  Thank you
  Mike

  Hi, Mike,.

  You can have a function-based index.

  CREATE INDEX tab_a_id2_10 ON tab_a
  (   CASE
          WHEN  id2 IN (10)
          THEN  id2
      END
  );
  

  In Oracle 11.2, it might be cleaner to have a virtual column (indexed).

• ORA-14456: can not rebuild the index on a temporary table

  change the IND_DEBITDOCUMENT TABLESPACE INDEXDATA index rebuild
  *
  ERROR on line 1:
  ORA-14456: can not rebuild the index on a temporary table
  
  
  why it is given such error?
  
  Thanks in advance.

  This information is always kept to user_ | all_ | dba_ tables, in this case in the temporary column.

  Obvious, isn't it?

  ---------
  Sybrand Bakker
  Senior Oracle DBA

• can I create an index on the column of duplicate lines?

  Hello
  
  I tried to create a unique index on an existing table, containing the duplicate lines.
  
  I want to create an index of type everything on this column of duplicate rows.
  
  If possible pls suggest me.
  
  
  Kind regards
  Vincent.

  Yes.

• SQL, not not using index on a partitioned table

  I partitioned table that has rows over 15 million
  I have a query that selects records based on the flag = 1
  There are only 2 possible values for the flag, it is 0 or 1
  I tried two index and local bitmap index on this field.
  The query always uses full table scan
  any suggestions?

  Assuming that you have an index

  CREATE INDEX idx_maint_chg_flag
     ON a_maintenance( CASE WHEN record_changed = 1 THEN 1 ELSE NULL END);
  

  your request would be

  SELECT *
    FROM a_maintenance
   WHERE (CASE WHEN record_changed = 1 THEN 1 ELSE NULL END) = 1
  

  Of course, it may be easier to follow if you create a function is_record_changed

  CREATE FUNCTION is_record_changed( p_flag NUMBER )
    RETURN NUMBER
  IS
  BEGIN
    IF( p_flag = 1 )
    THEN
      RETURN p_flag;
    ELSE
      RETURN NULL;
    END IF;
  END;
  

  create an index on this function

  CREATE INDEX idx_maint_chg_flag
     ON a_maintenance( is_record_changed( record_changed ) );
  

  and use this function in your query

  SELECT *
    FROM a_maintenance
   WHERE is_record_changed( record_changed ) = 1
  

  Justin

• Can dynamically create you index rules or virtual models in plsql?

  I am writing a plsql utility that loads data into a new model in offline mode. Once the load is complete, I need to create a new index of rules based on the definition of an index of existing rules. Once this is done, I need then to drop my virtual model existing and re-create it to include the new model I just loaded. I realize I could hardcode the two statements created in my plsql but I rather dynamically build lists of types "sem_apis.create_entailment" and "sem_apis.create_virtual_model" so that I don't have to change the code every time that I add new models to my environment (i.e. with this feature, I can add new models to the index of the rule and vitual manually models and my load utility would automatically include) in the next run of load).
  
  How can I pass the list of templates in each of these APIs? The documentation states that both accept a parameter of "models_in" of type SEM_MODELS, to whom he explains has a definition of TABLE OF VARCHAR2 (25).
  
  I created variables of types said in my utility and initialized them valid with models. However, whenever I try to run the API in my plsql using these variables, I get the following error:
  
  PLS-00306: wrong number or types of arguments in the call to 'CREATE_VIRTUAL_MODEL '.
  
  I have attached the sample code below:
  
  declare
  Model_T. ARRAY TYPE IS VARCHAR2 (25);
  model_list model_T;
  Start
  model_list: = model_T ('M1', 'M2');
  for me in model_list.first... loop of model_list. Last
  dbms_output.put_line (i: ' = ': model_list (i));
  end loop;
  sem_apis.create_virtual_model ('m12_NEW', model_list);
  end;
  /
  
  
  Has anyone successfully done this before? Any ideas how I might be able to get this to work?
  
  Thank you!

  Use the type SEM_MODELS as shown below:

  declare
  model_list SEM_MODELS;
  Start
  model_list: = SEM_MODELS ('M1', 'M2');
  ...
  end;
  /

• Drop and re-create the index on the current table

  Hello
  
  I just have a few questions about the removal and creating indexes on a table that activates a lot.
  
  Let me explain first:
  
  The table is used by the application with the DML statements every 3 seconds and I want to do is to drop the indexes and re-create them.
  But Im worried about the consequences - what happens when I try to recreate the indexes and the table has an option rowlock/used by the application?
  
  P.S
  It's production environment - so I can't stop the application.
  
  
  BR / Ander

  A reconstructed index either Online or Offline.

  Online index rebuild features:

  ALTER INDEX REBUILD ONLINE;

  LMD is allowed on the base table
  It's relatively slow
  Base table is targeted for the new index
  Base table is locked in shared mode and DOF is not possible
  Intermediate table stores changes to data in the base table, during the rebuilding of indexes to update the new index later

  Offline index rebuild features:

  ALTER INDEX REBUILD. (Default)
  Does not refer to the base of the table and the base table is exclusively locked
  New index is created from the old index
  Not possible DML and DDL on the base table
  Relatively faster

• How can I create a top border on a table cell?

  I have a table with 2 columns and 7 rows.  The table has no borders as a whole.  I want that the cell in row 7 of column 2 to have a top border of the massif of 1 pixel.  How can I do this?  I can do it with CSS inline?  If so, how?

  Example of inline css:

  A text

• How to create an index for a PK

  Hello
  
  Trying to name and create features for an index for a primary key must be created. I can't find this information in the documentation. Can someone explain how to do this?
  
  Thank you
  Bob Larsen

  Hi Bob,

  In the Data Modeler, you can first create an Index by opening the Table Properties dialog box in the relational model and select "Index" in the left panel.
  You can then use the button '+' to create a new Index and set its name and its columns (or his expression if you select the Expression of Index box).

  You can then ask to use this Index for the primary key as follows:-
  Navigate in the tree view of the browser to the node Table in the relevant physical model. If you expand that, it must contain an entry for the primary key.
  Open the properties of the primary key for this entry dialog box. On the general tab, set its property "with the help of the index" BY INDEX name, click its tab "with the help of the index' and set its property to"Existing Index"to refer to the relevant index.

  Moreover, in the primary key of physical model properties dialog box, you can set the property 'with the help of the index' to BY CREATE INDEX STATEMENT, and then on the 'Index to help' tab, you can enter the Index definition in the field 'Create Index Statement.

  David

• Create index partition in the partition table tablespace

  Hello
  
  I am running a work custom that
  
  * Creates a tablespace by day
  * Creates the daily table partition in the created tablespace
  * Removes the days tablepartition X
  * Removes the storage space for this partition of X + 1 day.
  
  The work above works perfectly, but it has problems with the management of the index for these partitioned tables. In the old database (10g - single node), all indexes and partitions exist in a BIG tablespace and when I imported the table creation script in the new database, I changed all the partitions table & index to go in their respective space.
  
  For example:
  
  Table_name... Nom_partition... Index_Part_name... Tablespace_name
  ============...================............====================...........=================
  TABL1... TABL1_2012_07_16... TABL1_IDX_2012_07_16... TBS_2012_07_16
  TABL1... TABL1_2012_07_15... TABL1_IDX_2012_07_15... TBS_2012_07_15
  
  
  But now, when the job is run, it creates the index in the tablespace TBS_DATA default.
  
  Table_name... Nom_partition... Index_Part_name... Tablespace_name
  ============...================.............====================...........=================
  TABL1... TABL1_2012_08_16... TABL1_IDX_2012_08_16... TBS_DATA
  TABL1... TABL1_2012_08_15... TABL1_IDX_2012_08_15... TBS_DATA
  
  
  I can issue alter index rebuild to move the index to its tablespace default, but how can I make sure that the index is created in the designated tablespace?
  
  NOTE: the partition/tablespace management work that I run only creates the partition of the table and not the index.
  
  
  The new env is a cluster of CARS of 2 nodes 11 GR 2 on Linux x86_64.
  
  
  Thanks in advance,
  aBBy.

  try something like this

  ALTER table tab_owner.tab_name add the partition v_new_part_nm
  values less (to_date('''|| v_new_part_dt_formatted ||'') ((', "DD-MON-YYYY)) tablespace ' | part_tbs
  update the index (ind1_name (partition ind_partition_name tablespace ind_part_tbs)
  ind2_name (partition tablespace ind_part_tbs ind_partition_name))
  ;

• You can create an index on a map?

  I have a few questions that I can't understand, or find a viable for example. You can create an index for a card, contained in a nested object, and if so, how would you do that? I have currently a filter inspected this criterion in the cache, but I am unable to understand to create an index of usabe for the custom filter. I use coherence 3.5.2 - any help would be most appreciated. I don't know if / what should I do with the SimpleMapIndex...
  
  Here's the Basic object below map. My filter retrieves all objects of ClientType with a client in his collection that contains the past in integer value in the customer's card. So can you create an Index on a card (and a nested to it) and how do you this? The index should be on the nested customerValues hashmap.
  

  class CustomerGroup
  {
      Set<Customer> customers ;
  }
  
  class Customer
  {
      Map<Integer, CustumerValue> customerValues;
  }

  If you write a custom, ValueExtractor you need to create an index, then you will not have a custom filter.

  Depending on how effective it must be custom Extractor you can use POF and don't have to deserialize the entries to create the index, or it can deserialize the class, which will make the code simpler.

  For example, without the use of POF

  public class MapKeyExtractor extends EntryExtractor implements PortableObject {
  
      public MapKeyExtractor() {
      }
  
      @Override
      public Object extractFromEntry(Map.Entry entry) {
          Set keys = new HashSet();
          CustomerGroup group = (CustomerGroup) entry.getValue();
          Set customers = group.getCustomers();
          for (Customer customer : customers) {
              keys.addAll(customer.getCustomerValues().keySet());
          }
          return keys;
      }
  
      @Override
      public boolean equals(Object obj) {
          return (obj instanceof MapKeyExtractor);
      }
  
      @Override
      public int hashCode() {
          return MapKeyExtractor.class.hashCode();
      }
  
      @Override
      public void readExternal(PofReader in) throws IOException {
          super.readExternal(in);
      }
  
      @Override
      public void writeExternal(PofWriter out) throws IOException {
          super.writeExternal(out);
      }
  }
  

  The extractor above returns a collection of all the integer values in the keys to all the customerValues of all customers in a ClientType (I guessed you have some accessor methods on classes that you posted).

  You can then use a ContainsFilter for your query. For example to get all values in the cache where the customerValues card contains a 19-key...

  Set results = cache.entrySet(new ContainsFilter(new MapKeyExtractor(), 19));
  

  You could write a version of the MapKeyExtractor which uses POF and wouldn't not deserialize values, but it's more complicated code, because should extract the POF of value stream map and go down the keys and values extract the key. It's doable, but not worth it unless you're really worried about the execution of updates of the index.

  Discalimer I wrote the code over the top of my head so have not compiled or tested, but it should be OK.

  JK

• CTXCAT index on partitioned tables

  Hi all

  I use an oracle 11.2 database and try to use the index for a sample application oracle CTXCAT.

  I saw that oracle reference documentation "the CTXCAT index can't stand table and index partitioning, not...» "in http://docs.oracle.com/cd/B28359_01/text.111/b28303/ind.htm#BEIIEAFD

  But I was able to create a CTXCAT index on a partitioned table query to use it successfully.

  So can someone tell me exactly it meaning in the documentation of oracle developer "CTXCAT index does not support index and table partitioning?

  Thanks in advance,

  Mor.

  This simply means that you cannot create a LOCAL partitioned index on a table partitioned using the CTXCAT indextype. There is not probably the creation of a global index (ie. covering all partitions) on a partitioned table.

  The wording could be clearer.

• Global and local index with respect to table partitioned

  Hello
  I am very confused about local and global index in a partitioned table.
  In addition, local index can be partitioned and unpartitioned.
  In addition, what is the difference between global partitioned and unpartitioned
  the index?
  
  As far as I know,
  If there is local index then there will be as many partitions as the partition table
  and local parition will index contains the index of only the lines of their corresponding scores.
  In addition, the local index maintananence is easier because drop us or create a partition, only index corresponding partition is affected then that in the case of the overall index,
  If we create a new partition of the table, to rebuild the global index.
  Am I wrong?
  
  Concerning

  Hello

  This means that when you add/drop/split/merge table any partition (maintaiance) lying below, its corresponding partition in index is automatically added/deleted/split/merged. Oracle takes care of it internally without user intervention.

  Concerning
  Anurag

• How can I create a full recovery for OS and preinstalled software media?

  Hello
  My son´s accompanying the new Satelite L855-10U preinstalled OS and much other software already installed on the HARD drive, but no installation media, the client is supposed to create a tool from Toshiba.

  I created 6 Swedish recovery for the operating system using the tools Toshiba had installed on the HARD drive.

  To do this 6 Swedish, I created with the Toshiba Recovery tool contain the operating system and all other preinstalled software?

  How can I create the installation media full and usable if not for the operating system and all other preinstalled software?

  I can´t find all the information on the backup software pre-installed with the exception of the BONE. Is there complete information how to do the above, in the manual of the computer, or have you missed this information?

  I would like to know how I can create media backup complete and usable for the operating system as well as for all other preinstalled software, so I can recreate all the facilities of the plant at a new disk if/when the original HARD disk crashes.

  Is there a partition hidden with pre-installed software, and if so, how can I create a backup of this partition, or all the software, so I can reinstall everything if the HARD drive fails, if it is already not with the Swedes 6 Toshiba tool created for me?

  Forward to your response and to complete your customer documentation about the complete instructions for installation and recovery media creation.

  Thank you very much!

  Baltazar

  Hello

  On this forum, you will find a lot of useful comments on the recovery image saved on the HARD drive and its operation to the facility and the creation of recovery disks.
  All this is clearly and simply.

  Front of Toshiba offer new people for laptop in software development create recovery image. This recovery image will be created for each laptop model (specific hardware configuration). Recovery image contains the operating system, all necessary drivers, tools/utilities Toshiba specific and some other software like DVD/Blu-Ray, Microsoft Office test drive and the antivirus application. With this configuration every laptop owner can begin to use the laptop without having to install important applications.

  This package is then saved on the HARD drive and can be used for the installation of HARD drive recovery - http://aps2.toshiba-tro.de/kb0/HTD1303440001R01.htm. In other words, if something is wrong with HARD drive recovery facility you can reset the preinstalled operating system and reinstall recovery imae. After that make you have absolute same settings you had after purchase and first start of the laptop.
  HARD drive recovery image can not be used if:
  -HARD drive is defective
  -you have installed the version of the own BONE
  Structure of the HARD disk partitions - is changed
  Recovery image - HARD drive is deleted or moved to another partition or copied to the external device.

  To avoid all this Toshiba recommends the creation of recovery disks. Using these disks, you will be able to install the OS on the new drive HARD or in any other situation listed above.
  Please note: the use of recovery disks will remove all HARD drive, create the new recovery partition and install image recovery, so you still have the same settings.

  I hope I can help you with my explanation. If you have any other questions you are welcome.

• Cannot create indexes on the flow table

  Hello

  I'm new to ODI.

  The problem is that during the execution of an interface, I get the error of the "IKM Oracle Dimension to slow variation"

  The command in step "Create unique index on the flow table:

  creating index < % = odiRef.getTable ("L", "INT_NAME", "A") % > idx

  on < % = odiRef.getTable ("L", "INT_NAME", "A") % > (< % = odiRef.getColList ("", "[column]", ",", "", "SCD_NK") % >)

  < % = odiRef.getUserExit ("FLOW_TABLE_OPTIONS") % >

  generate the following statement which lacks the name of the column between the (_)

  Create index I$ _MYTABLE_idx

  I have $_MYTABLE)

  NOLOGGING

  The result is that the interface fails with the error 936: 42000: java.sql.SQLException: ORA-00936: lack of expression caused by the previous command wrong.

  Please, can you help me?

  Thank you very much

  Angelo

  Hello

  I'm really really sorry! I just realized that you are working on the SCD. Basically, you are looking for all the column mapped as SCD_NK (key to slowly change natural Dimensions) insofar as shown here

  Substitution QAnywhere

  IF you need to read this

  SCD Type 2 - ODIExperts.com

  Let me know.