Functions nested without waiting

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  Click here and ask for help from the staff of the iTunes Store. Only, they can perform a second remove all within the annual period.

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• groups nested without group xmlagg function

  I make groups nested without group xmlagg function when using the xmlagg inside another function xmlagg function. Find the structure and sample data in the table here.
  

   CREATE TABLE "TEST_TABLE" 
     ("KEY" NUMBER(20,0), 
      "NAME" VARCHAR2(50 ), 
      "DESCRIPTION" VARCHAR2(100 )
     );
  
     Insert into TEST_TABLE (KEY,NAME,DESCRIPTION) values (1,'sam','desc1');
     Insert into TEST_TABLE (KEY,NAME,DESCRIPTION) values (2,'max','desc2');
     Insert into TEST_TABLE (KEY,NAME,DESCRIPTION) values (3,'peter',null);
     Insert into TEST_TABLE (KEY,NAME,DESCRIPTION) values (4,'andrew',null);
  
  select 
          XMLSerialize(document
          xmlelement("root",
           xmlagg(
             xmlelement("emp"           
             , xmlforest(Key as "ID")           
             , xmlforest(name as "ename")
             , xmlelement("Descriptions",  
             xmlagg(
                xmlforest(description as "Desc")
                )
              )
             )
            )
         ) as clob indent
         ) as t    
        from test_table;

  Then I removed the of the select query above and utilisΘ xmlelement xmlagg function
  

    select 
          XMLSerialize(document
          xmlelement("root",
           xmlagg(
             xmlelement("emp"           
             , xmlforest(Key as "ID")           
             , xmlforest(name as "ename")
             , xmlelement("Descriptions",             
                xmlforest(description as "Desc")
                )           
             )
            )
         ) as clob indent
         ) as t    
        from test_table;

  It works fine, but the created xml with empty elements for Descriptions key 3 and 4 that has null values. I need no need descriptions element in the xml file when it is set to null. Please help me solve this problem.

  Expected behavior, it is not a bug.

  The real question is why did you put XMLAgg in the first place?
  You can expect several DESCRIPTION by employee?

  If yes then please provide some examples of data to this situation.
  If not then a simple case statement should be enough:

  SQL> set long 1000
  SQL>
  SQL> select XMLSerialize(document
    2          xmlelement("root",
    3           xmlagg(
    4             xmlelement("emp"
    5             , xmlforest(Key as "ID")
    6             , xmlforest(name as "ename")
    7             , case when description is not null then
    8                xmlelement("Descriptions",
    9                  xmlforest(description as "Desc")
   10                )
   11               end
   12             )
   13           )
   14          ) as clob indent
   15         ) as t
   16  from test_table;
  
  T
  --------------------------------------------------------------------------------
  
    
      1
      sam
      
        desc1
      
    
    
      2
      max
      
        desc2
      
    
    
      3
      peter
    
    
      4
      andrew
    
  
   
  

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  Thank you!

  
  

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  Hello, MNKrantz

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  Dear all,
  
  My database is GR 11, 2 on Linux.
  
  What is the best way to resolve the line lock if 2 different sessions commands delete records from the same table?
  
  Can we use to update without waiting in the Update or Delete command?
  
  Thank you
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  What you can do too, is that you can perform the update that you did for the update with select... see the following topics

  declare
  cursor c1 is
  Select * from EMP
  where deptno = 20
  Update;
  Start
  for c1_rec looping c1
  Update emp
  Set sal = 11
  the location being c1;
  end loop;
  end;
  /

  Concerning
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• Oracle to update without waiting

  Hi all..
  
  Can you a pls tell me in which case we must use to update without waiting in the sliders.
  my understanding is to activate locks on top of records selected by the cursor using for update.
  but haven't knowlodge on the NOWAIT clause. Can pls tell me exactly in this case you must use the nowait clause.
  
  Thanks in advance,
  Sanjeev.

  Hi Hassan,.

  There are 3 choices

  1 NOWAIT, you set this, if you do not want to wait for the locks.
  Enough if 1 rank is not available to you, you will get an ORA-54.

  2. you can wait until ' n seconds. After "n" seconds, you do not have the lines
  you will get an ORA-30006.

  3 new feature - officially - in Oracle 11 g! SKIP LOCKED!
  Sometimes it's good for us that one TRIES to lock all lines, but not problem, if there is some lines
  which are available to us.
  In this case, we are changing all that remaining availabe lines will be ignored.
  Later - maybe - we try to repeat our process for the remaining lines.
  Of course, we mark our lines changed in some way (e.g. with flag)
  Note that this feature is available in Oracle 10 g (unofficially)!

  Best regards
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  (Trainer SQL and PL/SQL in Hungary)

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  Double-click the symbol in the library

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  Dear Board of Labview,

  I have a section of code in my VI who writes the Boolean values to digital output (at the bottom of the block diagram).   Right now I'm doing this with waiting within a structure of business function.   This works, but has a side effect that I would like to eliminate.   Because this code is part of a while loop, the wait function holds everything until the complete execution.   I want the calendar, but I need the rest of my logic loop runs continually.   Please see the attached VI.

  Does anyone have any suggestions?

  Thank you

  Zach

  PS - I can't open anything beyond v8.6

  See the attached file.

• function() nested in the select statement

  Oracle 11g. Try to nest a function within the select statement.  Goal: get the average customer rating for each of the qualified user.

  Select user_name, f_get_avg_cust_rating() "Notation.

  of u, OTHER_TABLES o TAB_USER

  where u.id = o.id and another condition matched;

  How Oracle would deal with the sql.  Is it

  (1) first of all display records based on the where clause, then call the f_get_avg_cust_rating() for each of the selected records OR

  (2) for the analysis in tables, the f_get_avg_cust_rating() will be called for each record met?

  Thank you

  Scott

  Words of Frank, I created two functions with dbms_output and used a function in where clause in select another function. See the bottom of the unit tests. Everyone says, where first clause then select...

  -Where function clause

  SQL > CREATE or REPLACE FUNCTION ret_empno

  2 RETURN NUMBER

  3 AS

  4 BEGIN

  5 DBMS_OUTPUT. Put_line (' where Clause Function');

  6 RETURN 7839;

  7 END;

  8.

  The function is created.

  -Select the function

  SQL > CREATE or REPLACE FUNCTION ret_1

  2 RETURN NUMBER

  3 AS

  4 BEGIN

  5 DBMS_OUTPUT. Put_line ('Select function');

  6 RETURN 1;

  7 END;

  8.

  The function is created.

  SQL > SELECT empno, ename,ret_1

  2 FROM emp

  3. WHERE empno = ret_empno;

  EMPNO, ENAME RET_1

  ---------- ---------- ----------

  7839 KING 1

  Where the function Clause

  Select the function

• Can we write function pipeline without creating Type objects.

  Hello
  I want to write a pipeline without Type objects function. Is this possible?
  
  For Ex as below:
  
  create or replace
  package pipelined_fun
  as
  txn type is (record
  NUMBER of num
  NUMBER of num1
  );
  type txnhist is table of txn;
  function txnhist_fun (p_mbrsep IN VARCHAR2) return pipeline txnhist.
  END;
  /
  create or replace
  pipelined_fun package body
  as
  function txnhist_fun (p_mbrsep IN VARCHAR2, p_mchdt in varchar2) return pipeline txnTable
  is
  TxN1 txn;
  BEGIN
  TxN1.num: = 1;
  TxN1.num: = 2;
  COURSE OF ACTION (txn1);
  COURSE OF ACTION (txn1);
  END;
  
  END;
  /
  
  
  Please advice.

  What you posted is close but your definition of the function in the body is not in the specifications.

  Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
  With the Partitioning, OLAP, Data Mining and Real Application Testing options
  
  SQL> CREATE OR REPLACE PACKAGE pipelined_fun
    2  AS
    3     TYPE txn IS RECORD (num NUMBER, num1 NUMBER);
    4
    5     TYPE txnhist IS TABLE OF txn;
    6
    7     FUNCTION txnhist_fun (p_mbrsep IN VARCHAR2)
    8        RETURN txnhist
    9        PIPELINED;
   10  END;
   11  /
  
  Package created.
  
  SQL>
  SQL> CREATE OR REPLACE PACKAGE BODY pipelined_fun
    2  AS
    3     FUNCTION txnhist_fun (p_mbrsep IN VARCHAR2)
    4        RETURN txnhist
    5        PIPELINED
    6     IS
    7        txn1 txn;
    8     BEGIN
    9        txn1.num := 1;
   10        txn1.num := 2;
   11        PIPE ROW (txn1);
   12        PIPE ROW (txn1);
   13     END;
   14  END;
   15  /
  
  Package body created.
  
  SQL> SELECT *
    2  FROM   table (pipelined_fun.txnhist_fun ('a'));
  
         NUM       NUM1
  ---------- ----------
           2
           2
  
  SQL>
  

  Note This support database types will be created by this code, but creating is not explicit and implicit.

• ORA-38500: in USING the JOURNAL CURRENT file option is not available without waiting Journal

  I have done some testing migration of expdp on the physics of the standby database by creating db_recovery_file_dest and then convert the day before instant db db. After that test was done, I converted to the db in waiting.
  
  However the recovery process does not seem to work somehow.
  
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  Laughing out loud

  Test on mine

  Primary

  Connected to:
  Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
  With the Partitioning, OLAP, Data Mining and Real Application Testing options
  
  SQL> select thread#,max(sequence#) from v$archived_log where applied='YES' group by thread#;
  
     THREAD# MAX(SEQUENCE#)
  ---------- --------------
           1            422
  
  SQL> 
  

  Standby

  Connected to:
  Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
  With the Partitioning, OLAP, Data Mining and Real Application Testing options
  
  SQL> select thread#,max(sequence#) from v$archived_log where applied='YES' group by thread#;
  
     THREAD# MAX(SEQUENCE#)
  ---------- --------------
           1            422
  
  SQL> 
  

  Checking for gap

  Try this query

  http://www.Visi.com/~mseberg/monitor_data_guard_transport.html

  This is very late.

  Best regards

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• Front door without waiting problem

  Hello

  I'm trying to implement a process that gets DB series of 'visits', so I try to send these visits to their users, so I used the front door which includes a sub-process, control type of the modem router is NO WAITING to send visits to all users at the same time, I used a SetValue to count.

  but the gateway loop n times (number of visits) without calling the sub-process, then it calls the sub-process n-times so that all tasks will be sent to a user?

  I'm doing something wrong?

  

  I agree with $Nith... you don't need the front door... just call the subprocess in your loop. Whenever you browse a new subfprocess will be called. You are right that the end user will have to wait until all the others are sent... wil .but he didn't wait until they meet. Just make sure that you set the Invocation policy to "not wait."

  Paul

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  Kind regards
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• Live running without waiting for results

  Hello world

  I have a problem that I can't imagine would be unique and may have an obvious solution that I forget.  in any case, I have a class that contains an array of a separate allows class calling device.  in the class of device, there is a (vi) method to do a test of performance on the device.  What I need to do, it's stress all devices at the same time by running permanently the performance of tests on them at the same time, but not more than one on each device.  essentially I'd like dynamically create the threads running on each device performance test.  I have problems to find a solution in labview for this.  Someone at - it good ideas?

  If there was a way to tunnel the array in a for loop and just get the method will, but then that would mean each iteration start at a time that cannot be made.

  I have attached a picture of what it would look like if I had 4 go but I'd like to be able to dynamically generate each Exec.vi system running simultaneously.  I hope I described this problem pretty well!

  Thanks in advance

  Brent Schenk

  BrentSchenk wrote:

  Hello world

  ... What I need to do, it's stress all devices at the same time by running permanently the performance of tests on them at the same time, but not more than one on each device.  essentially I'd like dynamically create the threads running on each device performance test.  I have problems to find a solution in labview for this.  Someone at - it good ideas?...

  Here's a screenshot of a VI I use to launch a case of a VI without blocking the main program (each call to execute CAN Loop.vi starts the CAN Loop.vi and returns).  In my case, each VI manages a station on a testbed of N-station and communicates with the rest of the program through the queues and events.  It is a little overkill for many applications, but it works well in mine, where the number of stations is determined at runtime, and each station can be controlled by another class (also defined at run time and configurable when the program is running!).

  Mark Moss

  Electrical Validation engineer

  GHSP