Handle NULL values in BPEL

Similar Questions

• Handle null values in the aggregate function

  Dear Experts,

  Here's my query

  SELECT sum (nvl (amount, 0)) + 50 AS TXN_PER_DAY_AMNT,

  COUNT (*) AS TRAN_LOG_TABLE TXN_CNT_PER_DAY

  (TRUNC (TXNDATETIME) = TO_DATE (SYSDATE, 'DD-MM-YY'));

  Exit from the MINE

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

  TXN_PER_DAY_AMNT	TXN_CNT_PER_DAY
  NULL VALUE	2

  Desired output

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

  TXN_PER_DAY_AMNT	TXN_CNT_PER_DAY
  50	0

  I want to treat the null value,

  If my amount is null, it should replace 0 and add my 50 amount.

  Result must be 0 + 50 = 50;

  Help, please

  Maybe

  SELECT nvl (sum (sum() 50) AS TXN_PER_DAY_AMNT,

  -case when sum(amount) is null then 0 else end of COUNT (*) AS TXN_CNT_PER_DAY

  OF TRAN_LOG_TABLE

  Concerning

  Etbin

• How to handle null values in the RTF models

  Hi - I have two groups in a report for different SQL and two formulas for each group, CF_ELE_CNT and CF_ELE_CNT1. In the model that I used the code to print a section below or not.
  
  <? If: number (CF_ELE_CNT + CF_ELE_CNT1) > 0? >
  
  The problem is when no data in the second group it was created not the tag XML for CF_ELE_CNT1, if CF_ELE_CNT has 13, it does not always print this partucular article. If I remove the CF_ELE_CNT1 in the State, it works fine. I was wondering how to handle this.
  
  Any help would be appreciated!
  
  Thank you
  RAV

  Hey Rav,.

  Check my profile, you will find.

  purpose of fusion {point} [AT] gmail [dOt] com

• REGEXP_SUBSTR for the list delimited by commas with null values

  Hello
  
  I have a column that stores a list of values comma-delimited. Some of these values in the list may be null. I'm having some trouble trying to extract the values using the REGEXP_SUBSTR function when null values are present. Here are two things I've tried:

  SELECT
     REGEXP_SUBSTR (val, '[^,]*', 1, 1) pos1
    ,REGEXP_SUBSTR (val, '[^,]*', 1, 2) pos2
    ,REGEXP_SUBSTR (val, '[^,]*', 1, 3) pos3
    ,REGEXP_SUBSTR (val, '[^,]*', 1, 4) pos4
    ,REGEXP_SUBSTR (val, '[^,]*', 1, 5) pos5
  FROM (SELECT 'AAA,BBB,,DDD,,FFF' val FROM dual);
  
  POS P POS P P
  --- - --- - -
  AAA   BBB

  SELECT
     REGEXP_SUBSTR (val, '[^,]+', 1, 1) pos1
    ,REGEXP_SUBSTR (val, '[^,]+', 1, 2) pos2
    ,REGEXP_SUBSTR (val, '[^,]+', 1, 3) pos3
    ,REGEXP_SUBSTR (val, '[^,]+', 1, 4) pos4
    ,REGEXP_SUBSTR (val, '[^,]+', 1, 5) pos5
  FROM (SELECT 'AAA,BBB,,DDD,,FFF' val FROM dual);
  
  POS POS POS POS P
  --- --- --- --- -
  AAA BBB DDD FFF

  As you can see that neither calls work correctly. Anyone know how to change the regular expression pattern to handle null values? I tried various other models but could not get anyone to work in all cases.
  
  Thank you
  
  Martin
  -----
  http://www.ClariFit.com
  http://www.TalkApex.com

  Hi, Martin,.

  That's what you want:

  SELECT
     RTRIM (REGEXP_SUBSTR (val, '[^,]*,', 1, 1), ',') pos1
    ,RTRIM (REGEXP_SUBSTR (val, '[^,]*,', 1, 2), ',') pos2
    ,RTRIM (REGEXP_SUBSTR (val, '[^,]*,', 1, 3), ',') pos3
    ,RTRIM (REGEXP_SUBSTR (val, '[^,]*,', 1, 4), ',') pos4
    ,RTRIM (REGEXP_SUBSTR (val || ','
                        , '[^,]*,', 1, 5), ',') pos5
  FROM (SELECT 'AAA,BBB,,DDD,,FFF' val FROM dual);
  

  The query above works in Oracle 10 or 11, but in Oracle 11, you can also do it with only REGEXP_SUBSTR, without using RTRIM:

  SELECT
     REGEXP_SUBSTR (val, '([^,]*),|$', 1, 1, NULL, 1) pos1
    ,REGEXP_SUBSTR (val, '([^,]*),|$', 1, 2, NULL, 1) pos2
    ,REGEXP_SUBSTR (val, '([^,]*),|$', 1, 3, NULL, 1) pos3
    ,REGEXP_SUBSTR (val, '([^,]*),|$', 1, 4, NULL, 1) pos4
    ,REGEXP_SUBSTR (val, '([^,]*),|$', 1, 5, NULL, 1) pos5
  FROM (SELECT 'AAA,BBB,,DDD,,FFF' val FROM dual);
  

  The problem with your first request was that he was looking for sub channels of 0 or more non-virgules. There was as a substring. consisting of 3 characters starting at position 1, he returned "AAA", as expected. Then there was an another substring, the 0 characters, starting at position 4, so it returned NULL. Then, there was a substring of 3 characters starting at position 5, so he returned 'BBB '.

  The problem with your 2nd request was that he was looking for 1 or more non-virgules. 'DDD' is the 3rd this substring.

  Published by: Frank Kulash, on February 16, 2012 11:36
  Added Oracle 11 example

• NULL values in service management LESS

  Hello
  
  I have the query unless you return through two date fields date... NULL values should be ignored in the calculation. I used the service LESS with NVL but not able to resolve the issue until I used the function REPLACE top of it to show the value NULL if the query returns date of NVL. Please find the tables and queries that I used...
  

  CREATE TABLE TEST_LEAST
  (RECORD NUMBER,
  DATE1 DATE,
  DATE2 DATE,
  DATE3 DATE);
  INSERT INTO TEST_LEAST VALUES (1, '1 AUG 2009', '23 JUN 2009', '4 APR 2009');
  INSERT INTO TEST_LEAST VALUES (2, '20 JAN 2009', '16 FEB 2009', '7 MAY 2009');
  INSERT INTO TEST_LEAST VALUES (3, NULL, '31 MAR 2009', '19 JUL 2009');
  INSERT INTO TEST_LEAST VALUES (4, NULL, NULL, NULL);
  COMMIT;

  To return date less date1 and date2, date3, I used the function LESS, but the result was not as expected with the following query:

  SELECT RECORD, LEAST(DATE1, DATE2, DATE3) FROM TEST_LEAST;

  Statement 3 should show a date of March 31, 2009.
  
  I changed the query to use NVL to handle NULL values...

  SELECT CASENBR, LEAST(NVL(DATE1, TO_DATE('31 DEC 9999')), NVL(DATE2, TO_DATE('31 DEC 9999')), NVL(DATE3, TO_DATE('31 DEC 9999'))) FROM TEST_LEAST;

  .. but now, the result shows that record 4 is December 31, 2009, instead of NULL.
  and finally, I replaced the date 31 DEC 2009' with null with this query...

  SELECT CASENBR, REPLACE(LEAST(NVL(DATE1, TO_DATE('31 DEC 9999')), NVL(DATE2, TO_DATE('31 DEC 9999')), NVL(DATE3, TO_DATE('31 DEC 9999'))), TO_DATE('31 DEC 9999'), NULL) FROM TEST_LEAST;

  I am not convinced with query then thought to ask THE GURUS for help. Please guide me how I can better handle nulls with LESS function.
  
  Thanks in advance!

  Use COALESCE with the first expression that column:

  SQL> SELECT RECORD, LEAST(COALESCE(DATE1,DATE2,DATE3),COALESCE(DATE2,DATE3,DATE1),COALESCE(DATE3,DATE1,DATE2))FROM TEST_LEAST;
  
      RECORD LEAST(COA
  ---------- ---------
           1 04-APR-09
           2 20-JAN-09
           3 31-MAR-09
           4
  
  SQL> 
  

  SY.

• How to handle the null value

  Hi all

  Can someone tell me how to handle null.

  I have a radio button, I need to capture the worth and inspiring I have a search criterion.

  If I select the radio button without problem. If I did not choose the option button it gives me the error.

  	OAMessageRadioButtonBean var1 = (OAMessageRadioButtonBean) webBean.findChildRecursive ("job");
  	If (var1! = null)
  	{
  	S1 = var1.getValue (pageContext) m:System.NET.SocketAddress.ToString ();
  	}

  Please suggest.

  Kind regards

  Sangu

  S1 = (String) var1. GetValue (PageContext);

• Properties: Treatment of NULL values

  I wanted to ask you how you deal with NULL values, on the properties of JavaFX.

  Properties of the wrapper for the primitive data types like SimpleIntegerProperty or SimpleBooleanProperty Don t accepts NULL values.

  Example:

  1. IntegerProperty integerProperty = new SimpleIntegerProperty() )
  2. integerProperty. setValue (null) ;
  3. System. out. println () integerProperty. getValue ());

  Output is 0 (default value for "int").

  I think the primitive property wrappers (IntegerProperty, BooleanProperty and friends) as of the wrappers for primitive types. Probably they shouldn't really inherit WritableValue as which allows the call to setValue with a type reference, but I think that indigestion API would be worse than the implementation of setValue with a slightly incorrect signature. I would just avoid defining a wrapper of primitive type to null property: If you want to restrict yourself using set (.) instead of setValue (...) you are forced to spend in the primitive type: either you cannot pass null.

  If you want an integer property where null values are handled in an intuitive manner, use ObjectProperty .

  The test below shows that call setValue (null) on IntegerProperty assigns the default value. (Although I don't see the behavior documented anywhere).

  import javafx.beans.property.IntegerProperty;
  import javafx.beans.property.ObjectProperty;
  import javafx.beans.property.SimpleIntegerProperty;
  import javafx.beans.property.SimpleObjectProperty;
  import javafx.beans.value.ChangeListener;
  import javafx.beans.value.ObservableValue;
  
  public class PrimitivePropertyWrapperTest {
  
      public static void main(String[] args) {
          IntegerProperty integerProp = new SimpleIntegerProperty();
          integerProp.addListener(new ChangeListener() {
  
              @Override
              public void changed(ObservableValue observable,
                      Number oldValue, Number newValue) {
                  System.out.println("integerProperty changed value from "+oldValue+" to "+newValue);
              }
          });
  
          ObjectProperty objectProp = new SimpleObjectProperty<>();
          objectProp.addListener(new ChangeListener() {
  
              @Override
              public void changed(ObservableValue observable,
                      Integer oldValue, Integer newValue) {
                  System.out.println("objectProperty changed value from "+oldValue+" to "+newValue);
              }
          });
  
          integerProp.setValue(null);
          integerProp.setValue(1);
          System.out.println("setting integerProp back to null:");
          integerProp.setValue(null);
          System.out.println("setting integerProp to 0:");
          integerProp.setValue(0);
          integerProp.setValue(null);
  
          objectProp.setValue(null);
          objectProp.setValue(1);
          objectProp.setValue(null);
          objectProp.setValue(0);
          objectProp.setValue(null);
  
      }
  
  }
  

• Replace NULL values for PIVOT query

  Hello
  
  I'm working a table for sales, for certain values, when now columns, finishing with a null value. How can I handle these values 0 (zeros).
  
  WITH (AS PIVOT_DATA)
  SELECT S.ZONE_CODE, Z.ZONE_NAME, S.YEAR, S.PERIOD, S.SALES
  OF STAT_TABLE_SALES ADV
  AREAS OF JOIN Z ON S.COMP = Z.COMP AND S.ZONE_CODE = Z.ZONE_CODE
  WHERE S.COMP = '001'
  AND S.BRAND_CODE = '001'
  )
  SELECT *.
  OF PIVOT_DATA
  PIVOT)
  SUM (SALES) FOR THE PERIOD (YEAR) TO ((20091),
  (2009,2),
  (2009,3),
  (20094)
  (2009,5),
  (2009,6),
  (2009,7),
  (2009.8),
  (2009,9),
  (2009.10)
  (2009,11),
  (2009.12),
  (2010,1),
  (20102)
  (2010,3),
  (2010,4),
  (2010,5),
  (2010,6),
  (2010.7))
  )
  ORDER BY DESC NULLS LAST 14;
  
  This query returns the following:
  
  COD_ZONA NOM_ZONA 2009_3 2009_2 2009_1
  -------- ------------------------------ ---------------------- ---------------------- --------------------
  01 YEDUSIJH. 1382367.75 1559943.27 1441279.64
  02 C, ASKAK 711897.82 865854,05 1583232.3
  ASDFG 03 130443.03 205409,84 178633.69
  04 OSOIDSD 320118.32 439008,83 409251.18
  05 ODFSDF 300908.21 276301,59 260188.53
  06 CH 242749.65 325196,71 464938.9
  SOA 07 610312.31 606312,93 754569.82
  08 SAN 89426.8 81360,04 61649.27
  09 YP 284487.79 328281,31 267210.85
  10 TC 87043.28 158594,43 85195.8
  11 BAGNN 76778.78 68180,76 118530.04
  12 CRT 122023.7 143442,21 134744.85
  13 ABC 209992.79 196477,03 185222.14
  IDLIB 14
  15 ARE 23870.41 4137,33 16660.53
  
  * These are not all the columns and rows, but it is a piece of what it returns.
  
  How can I replace the NULL values with 0 (zeros).

  Still not sure why nvl shouldn't meet your needs:

  SQL> select ename, nvl (clerk_20, 0) clerk_20, nvl (sal_30, 0) sal_30
    from emp pivot (sum (sal)
             for (job, deptno)
             in ( ('CLERK', 20) clerk_20, ('SALESMAN', 30) sal_30))
  /
  ENAME             CLERK_20          SAL_30
  ---------- --------------- ---------------
  WARD                     0            1250
  JONES                    0               0
  TURNER                   0            1500
  ADAMS                 1100               0
  ALLEN                    0            1600
  SMITH                  800               0
  CLARK                    0               0
  KING                     0               0
  BLAKE                    0               0
  JAMES                    0               0
  FORD                     0               0
  SCOTT                    0               0
  MARTIN                   0            1250
  MILLER                   0               0
  
  14 rows selected.
  

• SQL Loader with null values

  Dear friends,
  
  I have comma-delimited .dat files. Here is the example.
  

  abc, xyz, 456
  ase, asd, 890

  I have no problem loading using sql loader under normal circumstances.
  
  When a null value somewhere, for example:
  

  abc, , 456
  ase, asd, 890

  or
  

  , xyz, 456
  ase, asd, 890

  I could not load them.
  
  How can I fix this error?
  
  Any suggestion?
  
  I am using Oracle 10 g R2 running on Windows Server 2003
  
  That's how I connect
  

  $sqlldr userid=userid/password control=d:\load\controlfile\table_name.ctl log=D:\load\log\tablename.log resumable = true errors=0

  It is a way the contorl file looks like
  

  LOAD DATA INFILE 'D:\load\dat\tablename.dat' BADFILE 'D:\load\bad\tablename.bad' DISCARDFILE 'D:\load\dat\discard\tablename.dsc' 
  INSERT INTO TABLE tablename FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"' TRAILING NULLCOLS( col1, col2, col3)
  {code}
  
  How can I handle this?
  
  Please advice.
  
  Thanks in advance.
  
  Nith
  
  Edited by: user645399 on Jun 14, 2010 1:38 PM
  
  Edited by: user645399 on Jun 14, 2010 1:38 PM                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

  Try column_name '' in the control file.

• How to handle nulls through oracle forms?

  Hello
  
  I have a column check box on the form (request mode) and it always display the check box selected even underlying column is null.
  
  Please can tell me how can I show checkbox only enabled when colum data has value Y and all other cases should be unchecked (even with null values from database)
  
  Thank you
  VB

  VB,
  Make sure that you set the following properties of the checkbox.

  * Functional
       * Value when checked = 'Y'
       * Value when unchecked = 'N'
       * Check box mapping of other values = 'Unchecked'  (Default = Checked)
  * Data
       * Initial Value = 'N'
  

  The important property is the 'check box, mapping of other values". This property indicates how to handle values that are not expected to Oracle Forms. This is what causes the box to be checked when the value is NULL.

  I hope this helps.
  Craig...

  If a response is appropriate or useful, please mark accordingly

• problem of null values

  Hello
  
  I have a summary form that displays data from more than 10 tables, so I wrote manual sql query for each field to extract data from the database. but I got error "no data found" if one field was not filled or be null.
  So, how can I handle this null values so that the other data will be displayed and only certain fields will be null, which has no data.
  
  Because only extraction of form will be no insertion will be held but I can not use "SQL" as a Source because the sequence of data extraction is different from the display sequence of fields on the user interface, so some data get never recovered.
  
  Thanks in advance
  Rupesh

  Rupesh,

  Try to avoid the "while OTHERS THEN". Use "WHEN NO_DATA_FOUND THEN." This will prevent you other unexpected errors of masking.

  Kind regards
  Dan

  http://danielmcghan.us
  http://www.skillbuilders.com

  You can reward this answer by marking as being useful or correct ;-)

• NPE for rows with null values in the table of the adv

  I created the table adv, 2 columns, equipped with two text fields. Initially the col2 is empty,
  say that the structure is as follows:

                col1          col2
  Hdr         Question    Answer
  row1       abc           zxc
  row2       pdd           null (user doesnt enter anything)
  row3       zxc            lkj
  
  APPLYBUTTON

  When the user clicks on apply button I want to update these values in the table.
  
  I don't know how to do that, but that's what I'm trying to do. Please guide me the right way if its wrong.
  
  in LICS, I took the APPLYBUTTON action, got all lines of the object corresponding to the view, consulted with everyrow and I'm checking if there are values in the fields in the table, if the value zero, are simply print null. (we would not update on this line). . I could get o the part update, due to null pointer exception
  I get on the row line null pointer exception [1].getAttribute("Answer") for row2, it prints the value of row1 however.
  
  Here is the code I wrote:
  Set of rows from the rowset = (RowSet) vo.getRowSet ();
  Rank rank [] = vo.getAllRowsInRange ();
  System.out.println ("row.length" + row.length);
  for (int i = 0; i < row.length; i ++) {}
  String question = row.getAttribute("Question").toString ();
  String response = row [i].getAttribute("Answer").toString ();
  If (question! = null & &!("".)) Equals (question. Trim()))
  {
  System.out.println ("Question line" + i + "-" + question);
  }
  on the other
  {
  System.out.println ("Question line" + i + "is null");
  }
  
  If (response! = null & &!("".)) Equals (Answer.Trim ()))
  {
  System.out.println ("Response line" + i + "-" + response);
  }
  on the other
  {
  System.out.println ("Response line" + i + "is null");
  }
  
  Why the NPE survey code, I'm checking for null value and you want to print the value null in the logfile... I can not to getAttribute() on the null field, why can not just give me null in the variable I'm assigning to?
  
  You can guide me what approach to take, if it is not correct.
  I must examine DataDictionary and collect data there?
  Thanks in advance.

  Hello

  handle the exception of null on these two statements like this pointer

  String question = "";
  String response = "";

  Try
  {
  question = row.getAttribute("Question").toString ();
  }
  catch (NullPointerException e)
  {
  question = "";
  }

  Try
  {
  answer = row.getAttribute("Answer").toString ();
  }
  catch (NullPointerException e)
  {
  response = "";
  }

  Si ( !("". Equals (question. Trim()))
  {
  System.out.println ("Question line" + i + "-" + question);
  }
  on the other
  {
  System.out.println ("Question line" + i + "is null");
  }

  Si ( !("". Equals (Answer.Trim ()))
  {
  System.out.println ("Response line" + i + "-" + response);
  }
  on the other
  {
  System.out.println ("Response line" + i + "is null");
  }

  Thank you
  Gerard

• You can not call a method on a null value expression.

  Hello

  We are working on the tool of basic hygiene WMI for windows 2008 server of health check of the scent system but in error during the run automation tool

  "Cannot call a method on a null expression."

  LE000561ERROR: You can not call a method on a null value expression.
  ERROR: The value of the argument cannot be an empty string.

  Please suggest the same

  Hi Diakité Srivastava,

  Your question is more complex than what is generally answered in the Microsoft Answers forums. It is better suited for the IT Pro TechNet public. Please post your question in the TechNet forum.

  http://social.technet.Microsoft.com/forums/en/category/WindowsServer/

• NULL values for some elements of the XML reading tree

  I am confirming that I interpret correctly all the elements of a custom data XML structure defined by my application (the schema is completely under my control).  Some of the elements in my XML tree are read as NULL values, even if similar items are readind as expected.  I have checked some obvious things like misspelling the names of keys, but have not yet find the problem.  Anyone who has debugged similar questions - what else could cause this?

  Example XML:

  
      1.0.0.0
      1000
      MyAppsName
      
          
              1000
              userDefined
              StructName
          
      
  
  

  And extracted C++ w/comments at the end of each line about what I see (DataManager is my class of CRUD operations):

  In DataManager.hpp:

  QVariant mCustomDataStructsTopLevel;
  QVariantMap mCustomDataStructsTopLevelMap;
  

  In DataManager.cpp:

  mCustomDataStructsTopLevel = mXda.load(Utils::dataFilePath(customDataStructsFileName));  // XmlDataAccess; verified loading w/no errors
  mCustomDataStructsTopLevelMap = mCustomDataStructsTopLevel.toMap();
  
  qDebug() << "appName element value: " << mCustomDataStructsTopLevelMap["appName"]; // Outputs "MyAppsName" as expected
  qDebug() << "lastId element value: " << mCustomDataStructsTopLevelMap["lastId"]; // Outputs null (specifically: QVariant(, ) ) - this is NOT expected
  qDebug() << "appVersion element value: " << mCustomDataStructsTopLevelMap["appVersion"]; // Outputs null (specifically: QVariant(QString, "") )  - this is NOT expected
  

  OK, I got the feeling (and actually hoped) it was a silly mistake of face-palm on my part (compared to a problem of BB10 who had little chance of getting fixed).

  The problem is that I copy the structure of custom data from Starter to my Active dir to my data directory to first install but do not crush him on subsequent launches, as the copy in the data directory is what the user changes and relies on.  I was not a delete and reinstall on each of my iterations, so I wasn't really loading the modified versions of my XML I wanted--just, I was getting a day old stale version which was actually for the items I didn't expect NULL values for nulls.  DOH!

• PersistentStore.getPersistentObject returns the null value?

  I use a random key to retrieve a shape of the object PersistentStore

  persist is PersistentStore.getPersistentObject (KEY);.

  Works fine on the Simulator (OS 5), when I take the code signed to the device (BB OS 5.0 Bold 8900)

  For some reason, it returns null, without exception. Thereafter any API I inoke on PersistentStore / persist returns null without exception persist even when the null value.

  I don't know if it's one thing to eclipse debugger, but even if the debugger shows that objects are null. Controls null applied in the code seems to fail, what does code see these objects as non-null. Pheww! How is it possible.

  In this code still shows up as null, then safetyTable and orderedkeys. However, the value null check in the failure code.

  At a later stage in the code, when I try to access orderedkeys are null again! Are struggling with this problem for two days, all the pointers would be very comfortable.

                      persist = PersistentStore.getPersistentObject( KEY );
                      persistOrderedKeys = PersistentStore.getPersistentObject(KEY_ORDERED_KEYS);
                      safetyTable = (Hashtable)persist.getContents();
                      orderedKeys = (Vector)persistOrderedKeys.getContents();
                      if (safetyTable == null)
                      {
                          safetyTable = new Hashtable();
  
                          persist.setContents(safetyTable);
                          persist.commit();
                      }
  
                      if (orderedKeys==null)
                      {
                          orderedKeys=new Vector();
  
                          if (safetyTable.size()>0)
                          {
                              Enumeration addressKeys = safetyTable.keys();
                              while(addressKeys.hasMoreElements())
                              {
                                  orderedKeys.addElement((String)addressKeys.nextElement());
                              }
                          }
                          persistOrderedKeys.setContents(orderedKeys);
                          persistOrderedKeys.commit();
  
                      }
  

  "I don't know if it's one thing to eclipse debugger.

  I had problems of this kind when I don't have a level of operating system for the device I am debugging on.