Reg: Error in parallel Hint-

Similar Questions

• ORA-30926 on MERGE statement, occurs only with PARALLEL, success without PARALLEL hint hint.

  Hi Experts,

  I write under the MERGE statement. In this cardinality of the table_a table_b is 1:2. That is, each record of table_b corresponds to 2 records in table_a based on columns in CLAUSE.

  Well, this query throws below error.

  -Error-

  ORA-12801: error reported in the P011 parallel query server

  ORA-30926: failed to get a stable set of rows in the source tables

  However, the same statement runs successfully what tip PARALLEL is removed altogether. (There are no duplicates in table_b based on unity, group, loc columns.)

  Please sugget if anything look his place here or causes possible.

  -Request-

  MERGE / * + PARALLEL (8) * /.

  IN table_a a

  With the HELP of table_b b

  ON (a.unit = b.unit

  AND a.group = b.group

  AND a.loc = b.loc)

  WHEN MATCHED

  THEN UPDATE

  SET a.u_pushonly = b.u_pushonly

  a.u_seasonind = b.u_seasonind,

  a.eff = BOX

  WHEN b.u_season_start_dt <>TO_DATE('01/01/1970','DD/MM/YYYY')

  OR b.u_season_end_dt <>TO_DATE('01/01/1970','DD/MM/YYYY')

  OR b.u_pushonly = 1

  THEN more GRAND (NVL (b.u_assortment_start_dt, TO_DATE('01/01/1970','DD/MM/YYYY'))

  b.u_season_start_dt)

  Of OTHER NVL (b.u_assortment_start_dt, TO_DATE('01/01/1970','DD/MM/YYYY'))

  END;

  kendenny wrote:

  Fusion requires that columns be unique in both tables. Given that you only update was not insert is not put in correspondence, then you can use a single update statement.

  I don't think so, it requires only NEW data is unique. Informal argument: a single line in the new table can update several lines in the table of old, but you can not use several lines in the new table to update a single row in the old table.

  However, I wonder if something went wrong with the parallelism so that the lines with the same VALUES for the data (old) table_a has been distributed through many slaves, leading to several slaves, trying to update each on the other lines.  (I don't see how this could happen, but it's one of the problems with bugs - if she should not deceive you, it can be difficult to imagine how it's bad).

  To the OP - this sounds like something, you need to trigger an SR for (after a search of MOS).

  Concerning

  Jonathan Lewis

• Error with parallel while loops

  Hello

  I need to connect 6 different instruments gpib. I am using parallel loops, but the problem is when I try to open 2 or 3 Subvi simultaneously (the intstrument drivers), I just open one because of everything in a loop to run the Subvi. The program should be able to open all the Sub - VI independently.

  Can give you some ideas?

  Thank you

  A. Castillo

  Look at the detailed help for functions to notify.  Then follow the links to the examples included with LV

  Another problem that you have, whether you use your curls greedy or reporting or another technique, is to know how to stop your hand while loop.  All the subVIs must be called before the loop stops.  This is the fundamental paradigm of LV

  You will probably need to rethink your primary architecture to something that will actually do what you want.  Plan and design before your departure from the coding.  Note requirements for the program and determine which parts are dependent on othrer parts, then select a program architecture that can meet the requirements.

  Lynn

• Reg: ETG with parallelism-

  Hi Experts,

  Of the scripts below, the last of them with the parallelism at the level of the tables, the DEGREE of USER_TABLES column becomes 4, and each query is executed with the implicit parallelism.

  What is the way to change the DOP to 1 back again?

  create table t1

  as

  Select col1 level 'aaa' col2, sysdate + level double col3 connect by level < = 100;

  create table t2

  as

  Select / * + parallel (4) * / col1, col2 'aaa' level, sysdate + level col3 from dual connect by level < = 100;

  create table t3

  parallel (level 4)

  as

  Select / * + parallel (4) * / col1, col2 'aaa' level, sysdate + level col3 from dual connect by level < = 100;

  Thank you and best regards,

  -Nordine

  (on Oracle 10.2.0.1.0)

  ALTER TABLE PARALLEL 1

  SQL> create table emp_temp parallel 5
    2  as
    3  select * from emp;
  
  Table created.
  
  SQL> select * from table(dbms_xplan.display_cursor);
  
  PLAN_TABLE_OUTPUT
  -------------------------------------------------------------------------------------------------------------------------
  SQL_ID  1j21g59116rxv, child number 1
  -------------------------------------
  create table emp_temp parallel 5 as select * from emp
  Plan hash value: 91796457
  ----------------------------------------------------------------------------------------------------------------
  | Id  | Operation              | Name     | Rows  | Bytes | Cost (%CPU)| Time     |    TQ  |IN-OUT| PQ Distrib |
  ----------------------------------------------------------------------------------------------------------------
  |   0 | CREATE TABLE STATEMENT |          |       |       |     2 (100)|          |        |      |         |
  |   1 |  PX COORDINATOR        |          |       |       |            |          |        |      |         |
  |   2 |   PX SEND QC (RANDOM)  | :TQ10000 |    11 |   429 |     2   (0)| 00:00:01 |  Q1,00 | P->S | QC (RAND)  |
  |   3 |    LOAD AS SELECT      |          |       |       |            |          |  Q1,00 | PCWP |         |
  |   4 |     PX BLOCK ITERATOR  |          |    11 |   429 |     2   (0)| 00:00:01 |  Q1,00 | PCWC |         |
  |*  5 |      TABLE ACCESS FULL | EMP      |    11 |   429 |     2   (0)| 00:00:01 |  Q1,00 | PCWP |         |
  ----------------------------------------------------------------------------------------------------------------
  Predicate Information (identified by operation id):
  ---------------------------------------------------
     5 - access(:Z>=:Z AND :Z<=:Z)
  
  22 rows selected.
  
  SQL> select degree from user_tables where table_name = 'EMP_TEMP';
  
  DEGREE
  ----------
           5
  
  SQL> alter table emp_temp parallel 1;
  
  Table altered.
  
  SQL> select degree from user_tables where table_name = 'EMP_TEMP';
  
  DEGREE
  ----------
           1
  
  SQL>
  

• Reg: error in Exchange for IOM preparation

  Hi Experts,

  I have one installed connector for AD servers and Exchange and copied all the files in the directory, but when I try to run the reconciliation of exchange database. I am getting following error:

  Group database mailbox Exchange user research reconciliation with Job story Id: 1341 []

  oracle.iam.connectors.icfcommon.exceptions.IntegrationException: connector ConnectorKey (bundleName = Exchange.Connector bundleVersion = 2.0.0.1 connectorName = Org.IdentityConnectors.Exchange.ExchangeConnector) not found

  at oracle.iam.connectors.icfcommon.ConnectorFactory.createConnectorFacade(ConnectorFactory.java:176)

  at oracle.iam.connectors.icfcommon.recon.AbstractReconTask.init(AbstractReconTask.java:115)

  at com.thortech.xl.scheduler.tasks.SchedulerBaseTask.execute(SchedulerBaseTask.java:382)

  at oracle.iam.scheduler.vo.TaskSupport.invokeExecute(TaskSupport.java:270)

  to oracle.iam.scheduler.vo.TaskSupport.access$ 000 (TaskSupport.java:46)

  to oracle.iam.scheduler.vo.TaskSupport$ 1.processWithoutResult(TaskSupport.java:221)

  at oracle.iam.platform.tx.OIMTransactionCallbackWithoutResult.process(OIMTransactionCallbackWithoutResult.java:10)

  at oracle.iam.platform.tx.OIMTransactionCallback.doInTransaction(OIMTransactionCallback.java:13)

  at oracle.iam.platform.tx.OIMTransactionCallback.doInTransaction(OIMTransactionCallback.java:6)

  at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128)

  at oracle.iam.platform.tx.OIMTransactionManager.execute(OIMTransactionManager.java:22)

  at oracle.iam.scheduler.vo.TaskSupport.executeJob(TaskSupport.java:201)

  at sun.reflect.GeneratedMethodAccessor6488.invoke (unknown Source)

  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

  at java.lang.reflect.Method.invoke(Method.java:597)

  to oracle.iam.scheduler.impl.quartz.QuartzJob$ TaskExecutionAction.run (QuartzJob.java:268)

  at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:266)

  at oracle.security.jps.internal.jaas.AccActionExecutor.execute(AccActionExecutor.java:65)

  to oracle.security.jps.internal.jaas.AbstractSubjectSecurity$ ActionExecutorWrapper.execute (AbstractSubjectSecurity.java:228)

  to oracle.security.jps.internal.jaas.CascadeActionExecutor$ SubjectPrivilegedAction.run (CascadeActionExecutor.java:68)

  at weblogic.security.Security.runAs(Security.java:41)

  at oracle.security.jps.wls.jaas.WlsActionExecutor.execute(WlsActionExecutor.java:47)

  at oracle.security.jps.internal.jaas.CascadeActionExecutor.execute(CascadeActionExecutor.java:50)

  to oracle.security.jps.internal.jaas.AbstractSubjectSecurity$ ActionExecutorWrapper.execute (AbstractSubjectSecurity.java:228)

  at Thor.API.Security.LoginHandler.AssertionLoginSession.runAs (AssertionLoginSession.java:93)

  at oracle.iam.scheduler.impl.quartz.QuartzJob.execute(QuartzJob.java:77)

  at org.quartz.core.JobRunShell.run(JobRunShell.java:203)

  to org.quartz.simpl.SimpleThreadPool$ WorkerThread.run (SimpleThreadPool.java:529)

  Restart the server IOM

• coe_load_sql_profile doesn't work with parallel hint

  Hello

  I try to use coe_load_sql_profile to force a sql_id to use a trick.

  My index is / * + PARALLEL(A,8) FULL (a) * /.

  Profile of SQL is generated correctly and I can see it in my explanation, but seems that this only complete suspicion has been used.

  It is a limitation of coe_load_sql_profile?

  Thnaks.

  To illustrate what I mean:

  Series:

  explain plan for
  select /*+ full(t1) */ * from t1;
  select * from table(dbms_xplan.display(format => '+OUTLINE'));
  
  PLAN_TABLE_OUTPUT
  ------------------------------
  Plan hash value: 3617692013
  
  --------------------------------------------------------------------------
  | Id  | Operation         | Name | Rows  | Bytes | Cost (%CPU)| Time     |
  --------------------------------------------------------------------------
  |   0 | SELECT STATEMENT  |      |   194K|    38M|   715   (1)| 00:00:09 |
  |   1 |  TABLE ACCESS FULL| T1   |   194K|    38M|   715   (1)| 00:00:09 |
  --------------------------------------------------------------------------
  
  Outline Data
  -------------
  
    /*+
        BEGIN_OUTLINE_DATA
        FULL(@"SEL$1" "T1"@"SEL$1")
        OUTLINE_LEAF(@"SEL$1")
        ALL_ROWS
        OPT_PARAM('query_rewrite_enabled' 'false')
        DB_VERSION('11.2.0.3')
        OPTIMIZER_FEATURES_ENABLE('11.2.0.3')
        IGNORE_OPTIM_EMBEDDED_HINTS
        END_OUTLINE_DATA
    */  
  
  END_OUTLINE_DATA 
  
    */  
  

  Parallel:

  explain plan for
  select /*+ full(t1) parallel(t1,4) */ * from t1;
  select * from table(dbms_xplan.display(format => '+OUTLINE'));
  
  Plan hash value: 3617692013
  
  --------------------------------------------------------------------------
  | Id  | Operation         | Name | Rows  | Bytes | Cost (%CPU)| Time     |
  --------------------------------------------------------------------------
  |   0 | SELECT STATEMENT  |      |   194K|    38M|   715   (1)| 00:00:09 |
  |   1 |  TABLE ACCESS FULL| T1   |   194K|    38M|   715   (1)| 00:00:09 |
  --------------------------------------------------------------------------
  
  Outline Data
  -------------
  
    /*+
        BEGIN_OUTLINE_DATA
        FULL(@"SEL$1" "T1"@"SEL$1")
        OUTLINE_LEAF(@"SEL$1")
        ALL_ROWS
        OPT_PARAM('query_rewrite_enabled' 'false')
        DB_VERSION('11.2.0.3')
        OPTIMIZER_FEATURES_ENABLE('11.2.0.3')
        IGNORE_OPTIM_EMBEDDED_HINTS
        END_OUTLINE_DATA
    */    
  
  END_OUTLINE_DATA                         
  
    */
  

  The issue is not limited to sql Profiler, it's the same with the base lines.

  Patch SQL III / parallel to baselines. OraStory

• Reg: Error using Parallel_Enable in pipeline, function.

  Hi Experts,

  This might be a simple question, surely, I forgot something.

  CREATE or REPLACE PACKAGE parallel_pipelined_update AS
  
  TYPE rec_x IS RENDERING)
  rep_per NUMBER,
  unikid NUMBER
  );
  
  TYPE histdetl_tab IS TABLE OF THE rec_x

  INDEX BY PLS_INTEGER;

  -TYPE histdetl_tab IS TABLE OF THE histdetl;

  
  TYPE histdetl_refcur IS REF CURSOR RETURN histdetl;

  FUNCTION fn_parallel_update (input_cur_query IN histdetl_refcur)
  Histdetl_tab RETURN PIPELINED
  PARALLEL_ENABLE (PARTITION input_cur_query IN ALL);

  END parallel_pipelined_update;
  /

  During execution of this error are-

  Line of text Pos

  1 pack of Create, executed in 0.24 sec.

  14 12 PLS-00630: pipeline functions must have a collection of supported return type

  The total run of dry weather 1.16.

  What may be a possible reason? Please notify.

  -Nordine

  (on Oracle 11.2.0.3.0)

  To be more precise, who made the statement of histdetl_tab a table nested (as opposed to a PL/SQL table) would be supported.

  TYPE histdetl_tab IS TABLE OF rec_x INDEX OF PLS_INTEGER;

• Reg: result_cache in parallel-

  Hi Experts,

  I have a few concerns about the result (introduced in 11 GR 2) Cache and the / * + RESULT_CACHE * / suspicion.

  Referring to the...

  12.1 doc - Tuning the Cache of result

  Murali vandenberghe - using Oracle Database 11 g Release 2 result hides in an Oracle RAC environment

  Adrian Billington - query result cache in oracle 11g

  Door-

  (1) assume I have a master ETL job that has 5 sub-jobs. These sub-jobs is run in parallel, which is started at the time of the ETL.

  Each of these secondary jobs running a pull request and extracts data from database.

  In each of these secondary applications, there is a subquery, which is common. I think to provide / * + RESULT_CACHE * / to this common subquery.

  But my real concern - because all queries extraction (i.e. sub-jobs) are started at the same time, the result Cache thing will come into picture?

  (2) for how long the data is kept in the cache?

  A wild guess - to the point that we execute him DBMS_RESULT_CACHE . FLUSH procedure?

  (3) the warnings?

  (Trying to fix a few queries time costly and suddenly, this option came to my mind. Took the opportunity to watch this interesting feature, both to understand the put into custody, as appropriate)

  Please advise me on this.

  -Nordine

  (on Oracle 11.2.0.3.0)

  Hello.

  As requested on LinkedIn, I'll give you my thoughts on the subject.

  (1) the content of the result cache is in shared memory, so that they are available to all sessions, including the slaves gave birth to a parallel operation. In fact, it make much sense to do so, since once a specific request is made, all other slaves no longer have to issue this query, they just get the results in the cache.

  The result cache everything boils down to reuse. If all the slaves had to run a single statement, then caching of results will help at all. If a statement is reused several times, then caching the result is a great advantage.

  (2) it is managed similar to other caches, it is managed by a LRU algorithm. If something needs space, least recently used data is aged to make room. Of course, you can empty it manually, or specific items, but I doubt you would be doing that often.

  (3) caching of queries on tables volatile (those whose data change much) is probably useless that the results will be invalidated frequently. The successful result cache dependencies, such as DDL or DML changes to the data can invalidate the results, so that they are not used. You should look at gains fast targets, like small queries regularly issued, whose underlying data do not change on a regular basis. You also have the result of function cache, which is useful for caching the results of the functions, so they do not have to be rerun.

  I have some notes on them.

  • ORACLE-BASE - query result Cache in Oracle Database 11g Release 1
  • ORACLE-BASE-intersessional PL / SQL function result Cache in Oracle Database 11g Release 1

  See you soon

  Tim...

• Reg: Error when connecting to a remote database as user SYS.

  Hi all

  
  

  When I try to connect to a database as user SYS I get the error as

  ora-01017 invalid username/password denied logon

  But it is the registration of the local system where the oracle is installed.

  I created the password file and check the content in v$ pwfile_users.

  The result is "no selected lines.

  then, when I try to grant sysdba to user sys

  grant sysdba to sys.

  I get the error message like,

  ORA-01994: GRANT failed: password file missing or disabled

  Please help me solve this.

  Kind regards

  Konda

  Hello

  Its should be like

  orapwd.exe file=E:\app\Administrator\product\11.2.0\dbhome_1\database\pwdEE.ora force = entered y = 30 = password

  HTH

• question about PARALLEL hint

  the documentation says that this PARALLEL suspicion may by select statements used in as PARALLEL (emp 8). I've also seen some syntaxes like PARALLEL, PARALLEL 8, PARALLEL (8) and in each case the steps in execution plans are the same, but the assigned cost was a little different between each version (but much lower than for a query without this suspicion).
  
  How he interprets oracle above three syntaxes, IE.

  /*+ PARALLEL */, /*+ PARALLEL 8 */, /*+ PARALLEL(8) */

  ?
  are there parts in these syntaxes that are ignored or integrate the default behavior?
  which syntax is safe to use when you don't want to specify the table being parallelized, IE. Use a similar syntax PARALLEL (emp 8)?
  
  Thank you
  
  Edited by: 943276 2012-07-25 19:17

  Hello

  These could come in handy:

  http://docs.Oracle.com/CD/E11882_01/server.112/e26088/sql_elements006.htm#SQLRF50801

  http://docs.Oracle.com/CD/E11882_01/server.112/e16638/hintsref.htm#PFGRF94942

• Question about parallel hint and 'alter table enable parallel DML'

  Hi all
  
  I have a DML as follows:
  
  Insert / * + append * / into table1
  Select *.
  of COMPLEX_VIEW;
  
  Here complex_view contains a very complicated SQL, in which there is some heavy tables joins, subqueries, and aggregations.
  
  Question 1:
  
  Let's assume that the underlying tables have no attribute "parallel." Where should I add "parallel index" to force it to be run in parallel and can get better performance?
  
  Some members think that what follows is good.
  
  Insert / * + append * / into table1
  Select / * + parallel (a 4) * / *.
  of COMPLEX_VIEW;
  
  But I think that indicators must be put in the defintion of the complex view where they should be and do not put advice to the main insert DML, like this:
  
  Insert / * + append * / into table1
  Select *.
  of COMPLEX_VIEW; -I added the indicators in the COMPLEX_VIEW.
  
  What is your opinion?
  
  Quesion2:
  Without ' alter session enable parallel DML ", I can see the parallel session in v$ px_session thus." And the execution time has been shortened. This proves without this statement, the DML is also run in parallel.
  
  So, what is the effect of this statement?
  
  Best regards
  Leon

  I prefer the suspicion out of the COMPLEX_VIEW. This way, only this application forces the suspicion. If you put the indicator in the COMPLEX_VIEW, any other query on COMPLEX_VIEW (or Assembly of COMPLEX_VIEW to another view or a table) would also "encode" indicator in its execution. You don't then isolation parallel query to only where it is needed.

  If you put the parallel indicator in SELECT it (or view), the query is parallelized. This does not necessarily mean that the INSERT is parallelized. What you see v$ px_session are only slaves to PQ to SELECT.
  You must ALTER SESSION ACTIVATE PARALLEL DML and add the PARALLEL indicator in the INSERT.

  Hemant K Collette

• Reg: Error Message change

  Hello Bob,
  
  Is it possible to change the predefined Error Messages. I have a scenario saying that the user do not have access to create the record but it has read access to all files & Edit also when recording of it when the user clicks on Save & new buttong recording is saved but the error pops up as you are not able to create a new record.
  But my intention is when the user clicks on Save & button again the error message will be like "your record saved '. Is it possible to do so.
  
  Thank you
  Olivier

  Olivier, not at the moment. I recommend you to submit an enhancement request.

• Reg: Error in xml validation

  Hi all
  
  I am trying to validate an xml file with its related in the stylus studio xml schema, I get
  error string: empty encountered.
  
  I have a column costs which sometimes has no value, so this is the reason for the error
  XMLELEMENT ('Cost', cic.item_cost)
  How I overcome?

  It seems that if your question is because exists in the generated XML. Try using XMLForest instead of XMLElement. XMLForest will not include the node if no data is present.

• parallel hint and 10.2 RAC

  DB worm. 10.2.0.3
  
  I am told by using a parallel suspicion on a RAC database will cause a number of parallel processes to run on the nodes that the node that the execution of the query. Is this true? I can't find any docs about it.
  
  Thank you
  Ox

  Yes and no - it depends on your configuration. Is there a way to limit the available for the PX slaves nodes using INSTANCE_GROUPS and PARALLEL_INSTANCE_GROUP initialization settings.

• Reg: error in import of master repository to odi11g to odi10g

  Hello
  
  I try to import the master repository to my PC.
  
  Master rep by zip file and it is developed in odi11g, but in my PC, I have odi10g.
  
  (1) first step I created a login name in the login window of nursery of topology with credentials of voids.
  
  (2) after that, I went to the master repository import wizard.
  
  (3) I gave all the jdbc connection details very well, and I tested it showing successful connection.
  
  (4) I am select zip file chech box and I gave filepath.
  
  (5) all is well until this step.
  
  (6) but when I go to choose the technology, its does not plurarite any technology.displying completely empty window.
  
  
  Please provide us with your valuable answers.
  
  Kind regards
  SH.

  Hello

  Before execution of export and import operations, it is essential to understand in detail the concept of internal identifiers (IDS) in Oracle Data Integrator.If you know its good to have look at link below to get idea on that.
  http://docs.Oracle.com/CD/E21764_01/integrate.1111/e12643/export_import.htm

  For 11g
  You go to topology Manager.Then simply click on the icon to the right to update the button.
  Export master repository
  Logical topology of export

  Then go to the designer. You can see the right button to update the button. Click it
  Export working repository.
  Just do the same process respectively for import.

  For 10g
  Follow this link
  http://gerardnico.com/doc/ODI/Webhelp/en/UserManual/Designer/General/work_repository_export.htm

  Thank you