Write NULL value in 2D array

Hi,
I use LabVIEW 6.1 for some speed measurements. Sometimes it happens that my software was not able to calculate a speed or it finds the found value not worth mentioning, and that is OK.
And after the measurements I write the results to Excel in a 2D array using DDE. But when there is no speed recorded Labview fills up the empty spaces with zero values. But I don't want that because it will affect my statistics like the mean.
Is there a way to write NULL (empty) values to excel instead of the 0?
Thanx in advance.
Illustration:
(x) (y) VALUE
1 2 23.5
2 3 45.78
3 4 <----- Here I don't want LabVIEW to put a zero (0) but an empty space.
4 5 12.23

Excel does not support the concept of NaN so if you do not want to convert to string first, insert NaN yourself into your 2D array and modify the cell update to check for NaN and do not set the cell value if NaN
Stu McFarlane
Viewpoint Systems, Inc.

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SQL errors in SMS_STATE_SYSTEM - Trying to write NULL values to PropertyLocale

Hi!
We are getting a lot of the following error in the SMS_STATE_SYSTEM:
Microsoft SQL Server reported SQL message 515, severity 16: [23000][515][Microsoft][SQL Server Native Client 11.0][SQL Server]Cannot insert the value NULL into column 'PropertyLocale', table 'CM_I20.dbo.CatalogAppModelProperties'; column does not allow
nulls. UPDATE fails. : usp_BuildCatalogPropertyTable
Please refer to your Configuration Manager documentation, SQL Server documentation, or the Microsoft Knowledge Base for further troubleshooting information.
I understand what this message means but i cant find which applications are causing the problem.
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It seems it's trying to write NULL-values twice every 5 minutes, but from "where"? What is telling it to update the row with a NULL value?

Here are part of the statesys.log - It's not very helpful ;)
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SMS_STATE_SYSTEM 03.02.2014 16:18:14
4744 (0x1288)
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4744 (0x1288)
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Remove null values from string array

Hi ,
I have a string array in a jsp page which I save some values inside. After I store the values I want to print only those who are not null. How can I do this? Is there a way to delete the null values?

Thank you but because I am new in programming what do you mean to use continue. Can you explain it a little bit further?<%
//go through the array to check all the values
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Procedure Array Binding a Null Value

Can you perform array binding in ODP.NET (to a procedure for example that inserts values) and assume that if there are null values in the array that the records inserted will have the corresponding null values in their records?

Here's a quick sample using pl/sql associative arrays to insert null values into a table (I think this is what you mean)...
SQL*Plus: Release 10.1.0.3.0 - Production on Fri Feb 18 09:38:55 2005
Copyright (c) 1982, 2004, Oracle. All rights reserved.
SQL> connect /
Connected.
SQL> create table null_array_insert
2 (
3    first_name varchar2(32) not null,
4    middle_name varchar2(32) null,
5    last_name   varchar2(32) not null
6 );
Table created.
SQL> create or replace package null_array_test as
2    -- create a type for each column
3    type t_first_name is table of null_array_insert.first_name%type
4      index by binary_integer;
5
6    type t_middle_name is table of null_array_insert.middle_name%type
7      index by binary_integer;
8
9    type t_last_name is table of null_array_insert.last_name%type
10      index by binary_integer;
11
12    -- the procedures that will perform our work
13    procedure bulk_insert (p_first_name in t_first_name,
14                           p_middle_name in t_middle_name,
15                           p_last_name   in t_last_name);
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17 /
Package created.
SQL> create or replace package body null_array_test as
2    procedure bulk_insert (p_first_name in t_first_name,
3                           p_middle_name in t_middle_name,
4                           p_last_name   in t_last_name) is
5    begin
6      forall i in p_first_name.first..p_first_name.last
7      insert into null_array_insert (first_name,
8                                     middle_name,
9                                     last_name)
10                          values    (p_first_name(i),
11                                     p_middle_name(i),
12                                     p_last_name(i));
13    end bulk_insert;
14 end null_array_test;
15 /
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Here's the C# code:
using System;
using System.Data;
using Oracle.DataAccess.Client;
using Oracle.DataAccess.Types;
namespace Associative
/// <summary>
/// Summary description for Class1.
/// </summary>
class Class1
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    /// </summary>
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SQL> select * from null_array_insert;
FIRST_NAME                       MIDDLE_NAME                      LAST_NAME
First 1                          Middle 1                         Last 1
First 2                                                           Last 2
First 3                          Middle 3                         Last 3
First 4                                                           Last 4
4 rows selected.
SQL> select * from null_array_insert where middle_name is null;
FIRST_NAME                       MIDDLE_NAME                      LAST_NAME
First 2                                                           Last 2
First 4                                                           Last 4
2 rows selected.
SQL>Hope that helps,
- Mark

NULL Value in Journal Entry and Wrong Tax Summary

Hi people,
I need your expert help for a big problem that appens to some customers.
They run SAP BO 8.8 SP:00 PL:12
This is the scenario:
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Thaks Neetu for your answer.
I thinks there is a misurandertanding.
My problem is not SQL.
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From your post I see you are using a 3rd party package to access the Excel SpreadSheets, you will have to look in your API for you 3rd party package and see if there is a method that will identify a blank row, if there is and it does not work, then you have to take that problem up with them. I know this is a pain, but it is the price we pay for 3rd party object use.
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Is there a null value that I can put into a byte array?

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That's an idea!
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I have set up an array which is supposed to take the values of a recordset. Only problem is when I display them on the page, I get a list of 'null' instead of the data.
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%>
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I have set up an array which is supposed to take the
values of a recordset. Only problem is when I display
them on the page, I get a list of 'null' instead of
the data.
I'm trying to list first and last name (fname_ul &
lname_ul in DB)
Here's my code:
<% // Here I'm getting the amt of rows returned
int count=1;
while(rs.next()) {
count++;
%>
<%
int k = count;
int i = 0;
String[] fname = new String[k]; // here i'm trying
to initialize the string arrays;
String[] lname = new String[k];
while (rs.next()) {
fname[i] = rs.getString("fname_ul"); // here i'm
trying to put data into the array;
lname[i] = rs.getString("lname_ul");
i++;
%>Well, in the first while-loop, you already loop through all the result set, so in the second while-loop, all you get is a null value.
Also, the way you put the data into the array is not right. I didn't see any array indices. Instead of using arrays, you can consider using Vector, so you don't need to know the number of rows in advance.

How to write values to an array and call these to produce an xy graph

Hi, Hopefully someone can help. I have attahced my VI.
I am happy with how to write data to a file, which I have already done. The next thing I want to do, is write the pressure and acoustic values to an array for the duration of my testing (Testing is when the log switch is on). Once I switch the log button on my front panel off, I want to be able to call another VI which will display an XY graph of the Pressure and acoustics Vs Time. This will be populated from the array I create. Can anyone please help.
Thanks in advance.
Attachments:
PSV TEST MAIN.vi ‏203 KB

Since you are acquiring one point at a time, use a shift register and build an array of points , bundle it and display on XY graph
As shown in attached VI
Attachments:
PSV.vi ‏250 KB

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An error occurred while writing to the server. Please check to make sure you have entered appropriate values. If the problem persists, contact your system administrator
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Hi,
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<insert> INSERT INTO FACT (PRICE,PRODUCT_KEY,REGION_KEY,SALE_UNIT,TIMEKEY,SALES_QUOTA)
values (@{c7},@{c8},@{c9},@{c10},@{c11},@{c5} ) </insert>
<update> </update>
</writeBack>
</XML>
</WebMessage>
</WebMessageTable>
</WebMessageTables>
The <writeBack> tag is written with a lower case "w".
The "connetionPool" needs an upper case "P".
Update--
I think that you have to specify also an SQL statement for the update tag, for example:
<?xml version="1.0"; encoding="utf-8"?>
<WebMessageTables xmlns:sawm="com.siebel.analytics.web/message/v1";>
<WebMessageTable lang="en-us" system="WriteBack" table="Messages">
<WebMessage name="pmet_update">
<XML>
<writeBack connectionPool="PMTCOG">
<insert> select null from dual</insert>
<update> UPDATE XREF_PMET_URL SET URL= '@{c1}' WHERE API='@{c0}'</update>
</writeBack>
</XML>
</WebMessage>
</WebMessageTable>
</WebMessageTables>
The witeback wants for both the tags (<insert></insert> and <update></update>) an SQL Statement.
Hope this help's
Thanks
Satya

Problem when passing string array in sessions showing null value

i am trying to pass a string array but it is showing me the null value
i think the the problem is seem to be in session.settAttribute("subject['"+i+"']",subject) in 2.login_action.jsp
or in String sub1=(String) session.getAttribute("subject[0]"); in 3.user_home.jsp
i have following three pages
1.login.html
2.login_action.jsp
3.user_home.html
1.login.html
<html>
<body>
<form method="post" action="login_action.jsp">
Username<input type="text" name="username"></input>
<br>
Password<input type="password" name="password"></input>
<input type="submit" value="login"></input>
</form>
</body>
</html>
2.login_action.jsp
<%@ page contentType="text/html"%>
<%@ page import="java.sql.*" %>
<%!
String user,pwd;
String subject[]=new String[10];
int i,totalsubject;
%>
<%
try
user=request.getParameter("username");
pwd=request.getParameter("password");
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
Connection con = DriverManager.getConnection("jdbc:odbc:ods","scott","tiger");
PreparedStatement ps = con.prepareStatement("select password from users where username='"+user+"'");
ResultSet rs = ps.executeQuery();
if(rs.next())
if(rs.getString("password").equals(pwd))
session.setAttribute("username",user);
PreparedStatement ps2 = con.prepareStatement("select subject_id from allot_teachers where staff_id='"+user+"'");
                    ResultSet rs2 = ps2.executeQuery();
                         while(rs2.next())
                         i=0;
                         subject[i]=rs2.getString(1);
// if i display here the subjects in out.println(subject[i]) it is working fine
// but in next redirected page it is showing null
                         session.setAttribute("subject['"+i+"']",subject[i]);
                         //out.println(subject[i]);
                         i++;
response.sendRedirect("user_home.jsp");
else
out.println("error invalid username or password");
else
out.println("error invalid username or password");
con.close();
catch(Exception e)
out.println(e);
%>
3. user_home.jsp
<%@ page contentType="text/html"%>
<%@ page import="java.sql.*" %>
<html>
<%
String user,pwd,cat,cat1;
String username=(String) session.getAttribute("username");
if(username==null)
response.sendRedirect("login.html");
//just tried for first two subjects
String sub1=(String) session.getAttribute("subject[0]");
String sub2=(String) session.getAttribute("subject[1]");
//here it is printing null
out.println(sub1);
//here it is printing null
out.println(sub2);
%>
<form method="post" action="logout.jsp">
<input type="submit" value="Logout"></input>
</form>
</html>
Cheers & Regards
sweety

The name in getAttributre doesnt match the name in setAttribute.
Note "subject[0]" is a string containing 10 chars, "subject" is a string containing 7 chars.
Here is your code:
session.setAttribute("subject",subject);
String sub1=(String) session.getAttribute("subject[0]");

Not to display the null values from data base

Hiiii.
In a jsp file i have ten check boxes.The jsp file is mapped to a servlet file for parameter requesting and to
store it in DB.
The unchecked box values has null values.All the values are store in a Mysql DB table.
Again i have to display it in a jsp page from table.
The problem am facing was,how can i display only the values in a row.it must not display the null values and the crresponding column name.
Or any other way is their like below
How i can retrieve only the selected check boxes from tht jsp file.and store in backend.
Thanks in Advance
regards,
satheesh kannan

Here is a rough example that may give you some ideas:
On the JSP page:
<%if(myData.getFirstName()!=null){%>
Your First Name'
<input type="text" name="firstName" value="<%=myData.getFirstName()%>">
<%}%>
In the servlet:
String firstName= request.getParameter("firstName");
if(firstName!=null){
//write it to the database
}

Null values passed into the servlet

Hi all,
I keep getting null values for all the params that I pass into the servlet i.e. sqltype, producttype, process, instance etc....I have attempted to print some of them out on the screen but I keep getting the 'NullPointerException' error message...can anyone tell me what it is that I have down wrong in the below code?
If I run the servlet with method calls that have hardcoded arguments in them it works but not when I pass in the params from the URL...I am absolutley puzzled!
Help!
package blotter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.db.util.WriteToLogFile;
import blotter.cache.*;
Servlet to extract an object that has already been placed
in the cache by GetBondPrices servlet from the cache.
public class ExtractSecurityObject extends HttpServlet
     String sqlType = "";
     String productType = "";
     String instance = "";
     String process = "";
     String asOfDate = "";
     String currencyCode = "";
     String curveId = "";
     String results = "";
     private String debug;
private PrintWriter out;
     private WriteToLogFile logFile;
     // called when servlet first initialised
     public void init(ServletConfig config) throws ServletException
          super.init(config);
     // method called for each get request
     public void doGet( HttpServletRequest request, HttpServletResponse response )
               throws ServletException, IOException
          String toWrite = " ";
// Get the object identifier from the parameters passed in
          sqlType = request.getParameter("sqltype");
productType = request.getParameter("producttype").toUpperCase();
          instance = request.getParameter("instance");
          process = request.getParameter("process");
          asOfDate = request.getParameter("asofdate");
          curveId = request.getParameter("curveid");
          currencyCode = request.getParameter("ccy").toUpperCase();
          out.println(currencyCode);
          if ( request.getParameter("debug") !=null)
               debug = request.getParameter("debug");
          else
               debug ="";
          // set the mime type to html
response.setContentType( "text/html" );
out = response.getWriter();
out.println("<HTML>");
          try
          // write some parameters to a log file
          toWrite = toWrite + "<li>" + getServletInfo() + " at " + new Date() + " " + sqlType + " " +
                    productType + " " + instance + " " + process + " " + asOfDate + " " + curveId + " " +
                    currencyCode;
     CachedObject o1 = (CachedObject)CacheManager.getCache("EB_" + currencyCode + productType + asOfDate);
if(o1 == null){
          CacheSecurityObject cso = new CacheSecurityObject();
               if((request.getParameter("sqltype") == null) && (request.getParameter("instance") != null)){
results = (String)cso.putSecurityinCache(null, request.getParameter("producttype"), request.getParameter("instance"), request.getParameter("process"), request.getParameter("asOfDate"), request.getParameter("curveId"), request.getParameter("currencyCode"));
//results = (String)cso.putSecurityinCache(null, "yc", "frafu", "official", "20011105", "baceod", "sek");
out.println(results);
               } else {
//results = (String)cso.putSecurityinCache("bondtypes", "bond", null, "official", "20011105", "baceod", "eur");
results = (String)cso.putSecurityinCache(request.getParameter("sqltype"), request.getParameter("producttype"), null, request.getParameter("process"), request.getParameter("asOfDate"), request.getParameter("curveId"), request.getParameter("currencyCode"));
out.println(results);
          else{
               out.println(((String)o1.object).toString());
// general catch for all exceptions
          catch(Exception exception)
               out.println( "Exception: The item that you requested was not found in the cache" + "<BR>" );
               toWrite = toWrite + "Exception : " + exception.getMessage() + "\n" ;
          finally
// write to logfile
          logFile = new WriteToLogFile();
          logFile.setSourceDirName("blotter");
          logFile.setQuery(request.getQueryString());
          logFile.setServletPath(request.getServletPath());
          if (toWrite!=null)
          logFile.writeLog(getServletInfo(),toWrite);
out.println("</HTML>");
          out.close();
     // need the class name for log file
     public String getServletInfo()
     return this.getClass().getName();
}

That section of the code references a cache to extract an item that has been requested by the user. If the item is not in the cache i.e. if(o1 == null) then it will call a class that generates that object and places that object into the cache. The second time the user makes the same call then they will be handed a cached copy of that object which is aimed to make the whole servlet call faster.
That section of the code works fine coz I have tested that separately. It is the reading in of the arguments that is causing the problem.

About xml and null values in 10g

Hi, I have an UCM GetFile webservice component wich receives 4 arguments, two of them are null values (rendition and extraPops), and the xml request generated by obpm is:
<GetFileByName xmlns="http://www.stellent.com/GetFile/">
<dDocName>V_123410</dDocName>
<revisionSelectionMethod>latestReleased</revisionSelectionMethod>
<rendition/>
<extraProps/>
</GetFileByName>The problem is: On UCM web service, an empty tag like <rendition/> is treated like a "empty string" value, instead of a null value, and then the response i get isn't the expected.
What I want do to is change this behavior, and when I put null values in requests, the obpm should not write those tags. Is that possible?
Should be like that:
<GetFileByName xmlns="http://www.stellent.com/GetFile/">
<dDocName>V_123410</dDocName>
<revisionSelectionMethod>latestReleased</revisionSelectionMethod>
</GetFileByName>Thanks!

Hi,
I have question regarding aggregates. It's possible to read data from BW aggregates? We have webi reports on a SAP BW multi cube and we would like to optimize retriving query.
>> Because you are using the BW Query as the source all the items that you have done so far in terms of aggregation, indexing, ... is all valid and there are no specific steps required to leverage it with Web Intelligence. Make sure the aggregates are "correct" meansing that they do reflect what you are asking for in the Web Intelligence query panel
How can we filter in webi query null (#) values. If we create condition that some variabe is diffrent from # we still get null (#) values in report.
>> You should be able to create a variable. in case you tried that already could you be more specific ?
thanks
Ingo

NULL Value in OO Context

Hi ,
I want to set NULL Value in OO Context.
I cannot use clear with NuLL, SInce it is not allowed in OO Context.
Do anybody know Class xyz => NULL_Constant ?
Eg cl_abap_char_utilities=>NEWLINE
Regards
Prasath

> Hi.
>
> Hmm, since I am from Java world these things gets
> confusing in ABAP. If you see the following example
> then the report will print both 1 and 2. So the
> variable is both "initial" as well as "space".
>
>
>
> DATA: lv_test TYPE flag.
> lv_test = '0'.
> CLEAR lv_test.
>
> IF lv_test EQ space.
>   WRITE '1'.
> DIF.
> IF lv_test IS INITIAL.
>   WRITE '2'.
> DIF.
>
> Best Regards
> Niklas
That's because the initial value of a character field is SPACE. In the same way, the initial value of an integer field is 0. Again, looking at the ABAP help:
Type    Initial Value
b       0
c       " " for every position
d       "00000000"
f       0
i       0
n       "0" for every position.
p       0
string empty string of length 0
s       0
t       "000000"
x       hexadecimal 0
xstring empty string of length 0.
matt

Write NULL value in 2D array

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