How to update single row of ms access database

Hi All,
can somebody tell me how can i edit/update a single row of ms access database?
let say i want to edit the first row of the figure in the left. What i want is when i click in the row, it will pop up a window where i can edit the fields content. or may be is it possible to add a column with "edit" text which link to the appropriate row. so when i click the "edit" it will open the edit window.
Thank you

If you use a multi-column listbox indicator there is a "double-click" event that you can capture with an event structure. The event, when fired, returns the row that the user double-clicked. Use that parameter to fetch/modify the data as needed. Remember that to update the data in the database the table containing the data must have a primary key - or at lease something you can use to uniquely identify the rows.
Remember that in a database, there is no such thing as "the first row"; you have to explicitly identify which row you wish to modify.
Mike...
Certified Professional Instructor
Certified LabVIEW Architect
LabVIEW Champion
"... after all, He's not a tame lion..."
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How to update multiple rows in one query using php

i am new to this can any one help me how to update multiple rows at a time i am doing an school attendance page

Often the situation is such that you have multiple courses across a range of dates.So students may take more than one course, and you need to track attendance for each course date. The following graphic demonstrates this:
In such a situation, you need four database tables as follows:
students (student_id, student_name, etc.)
courses (course_id, course_name, etc.)
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A fifth table may also be needed to define the dates of courses, but you may also be able to build this array programmatically by using PHP's robust date functions, which can give you, for instance, all the Tuesdays and Thursdays between a start date and end date.
The students_courses table simply keeps track of which students are taking which courses, so it has just two columns for the primary keys of both of the main tables. The attendance table is similar, but it also includes a date field. The following view of the attendance table demonstrates this:
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How to update single field

Hi frnds,
                    How to update single field data in Z table .
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Dear Rakhi,
You can use the below syntax.
Hope this would solve your problem.
LOOP AT tpra INTO wpra.
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ENDLOOP.
In WHERE give KEY VALUES
In SET give the particular value that has to be changed.
Regards,
Pintoo
Edited by: pintoo2805 on May 18, 2010 7:10 AM

How to Update a Row using ADF

Hi every one
Can any one help me out, How to Update a Row using ADF.
Thanks in advance

In addition to Clear to my question
By Using ADF BC How can I update a record in a database.
I have VO and EO associated with a table.
How can I update a record using ADF BC
Message was edited by:
user616296

How to update duplicate row from table

Hi,
how to update duplicate row from table?
First to find duplicate row then update duplicate row with no to that duplicate row in oracle.
can you give me suggestion on it?
Thanks in advance.
your early response is appreciated...

In order to find a duplicate row, see:
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:1224636375004
(or search this forum, your question has been asked before)
In order to update it, just create and use an Oracle sequence, have it start and increment at a value that doesn't exist in your table.
If that doesn't get you going, post some CREATE TABLE + INSERT INTO statements, and the results you want from them, in other words: a complete testcase.

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thanks ntsii.
my problem is:
[Bindable]
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//==================================
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But i am not sure the AdvancedDataGrid buld all rows from
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How can update two rows in one query?

How can update two rows in one query?
Edited by: OracleM on May 4, 2009 12:16 AM

What do you mean with "two rows"? May be two columns??
If the where clause of UPDATE query matches two rows, then it will update two rows. If you want to update two columns, then add column names to your query
UPDATE your_table SET col1=value1, col2=value2 WHERE your_where_clause- - - - - - - - - - - - - - - - - - - - -
Kamran Agayev A. (10g OCP)
http://kamranagayev.wordpress.com
[Step by Step install Oracle on Linux and Automate the installation using Shell Script |http://kamranagayev.wordpress.com/2009/05/01/step-by-step-installing-oracle-database-10g-release-2-on-linux-centos-and-automate-the-installation-using-linux-shell-script/]

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Dear All,
With reference to subject matter I want a sincere advice regarding how to update transaction data automatically into MySQL database using PI. Is there any link available where I can get step-by-step process.
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Chandra Sekhar

Hi .
Develop a sceanrio between SAP to Database system,When the data updates in SAP Tables read the data and update it in DATA Base using JDBC adapter,but there will be some delay in updating data in MySQL.
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Updating single row by multiple users at the same time

Hi,
I have been asked to develop an application where a single row from a table will be accessed by multiple users. Even multiple users can try to update the same row at the same time. So, to provide a solution of this problem should it be the best way to lock that particular row when user requesting to update it and after completion of commit the lock will be released. In the same time if some other user request to update the same row then it will be in the wait condition.
Please provide suggestion that is it the best way to handle the situation or not. If it is then can you also please provide an example (with sample code) of it.
Regards,
Koushik

It depends entirely on how the system was built.
You could relatively easily build an application that does something like
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- Update the row specifying the last_updated_date you had selected in your WHERE clause
- If the update updates 1 row, it was successful, otherwise inform the user that the row was already updated.
In this case, the second user would get an error indicating that the seat had already been purchased.
You could also relatively easily do a SELECT FOR UPDATE to prevent users from ever getting an error between the time they select a seat and the time they finish their transaction. Of course, if the user wanders away from the computer, or inadvertently ends up locking dozens of rows, this tends to rather problematic in practice. You may find that when the train pulls out of the station, someone that never ended up buying a ticket has locked a dozen rows so you lost a dozen sales. If you have a call center where operators are reserving seats for people on the phone, you may decide that explicit locking is more appropriate because you're confident that the operators aren't going to leave tickets locked for long periods of time and the cost of having the customer walked through the seat selection process multiple times would be higher than the cost of having rows locked longer than they need to be.
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Hi,
I have created a search form and ADF table. This ADF table is having column of Select Boolean check box along with actual table columns.
When I click on Search button it should show the result in ADF table. I will be able to select the check box in multiple rows.
Finally when I click on Submit button status column should be updated against the rows for which Boolean check box is selected.
Here the thing that I would like to know is how to identify the rows whichever are selected when I click on Submit button.
Could you please help.
Regards
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http://sameh-nassar.blogspot.de/2009/12/use-checkbox-for-selecting-multiple.html shows how to use a checkbox via a transient attribute on the EO. To get the selected row you check the transient attribute of each row.
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C# Update single row in [my]sql

Hi
We found after our Bugzilla upgrade that many comment records where not upgraded correctly due to special characters.
I have found all the old == good and matching new == bad records
Some of the comments can be up to 64k so I don't want to try to do this as a textual update, rather update the row directly
I am after hints how to do this ?
Thanks
try
adaptor = new OdbcDataAdapter(_query, _mySQL);
resultsTable = new DataTable("Results");
adaptor.Fill(resultsTable);
adaptorNew = new OdbcDataAdapter(_query, _mySQLNew);
resultsTableNew = new DataTable("Results");
adaptorNew.Fill(resultsTableNew);
//Console.WriteLine("Bug {0} has {1} comments", i, resultsTable.Rows.Count);
int rowCount = 0;
foreach (DataRow row in resultsTable.Rows)
DataRow newrow = resultsTableNew.Rows[rowCount];
// This checks the comments ids are the same if (row.ItemArray[1].ToString().Equals(newrow.ItemArray[1].ToString()))
// This checks the comments lengths
if (!row.ItemArray[2].ToString().Equals(newrow.ItemArray[2].ToString()))
Console.WriteLine("At id {0}, length differs {1} != {2}", i, row.ItemArray[2].ToString(), newrow.ItemArray[2].ToString());
// To DO - update new record with old record data
// xxxx.update (newrow"comment.text") with row"comment.text"
else
Console.WriteLine("At id {0}, comment ids do not match", i);
rowCount++;
catch
NB: I tried something like below it did not work
Over is [MY]SQL it works, e.g.
update longdescs set thetext='Test by GBR' where comment_id=625;
HOWEVER for huge text strings, not sure how to handle ' inside the text
// this does not work though NO error is reported object[] rowdata = new object[4];
rowdata[0] = row.ItemArray[0];
rowdata[1] = row.ItemArray[1];
rowdata[2] = row.ItemArray[2];
rowdata[3] = (object)"Test of write"; // row.ItemArray[3];
resultsTableNew.Rows[rowCount].BeginEdit();
resultsTableNew.Rows[rowCount].ItemArray = rowdata;
resultsTableNew.Rows[rowCount].EndEdit();
resultsTableNew.Rows[rowCount].AcceptChanges();
resultsTableNew.AcceptChanges();
And another ps ; No ,matter what ways I use variables @oldtext :oldtext I cant get the var substitution to work below.
Outcomes : No row updated, row updated showing nothing or "@oldtext"
Something like
"UPDATE longdescs SET thetext = 'my test' WHERE comment_id=123"
will work
string updateText = @"UPDATE longdescs SET thetext = @oldtext WHERE comment_id={0}";
_query2 = string.Format(updateText, row.ItemArray[1]);
// Set @newtext
Console.WriteLine("At id {0}={1}, comment id {2}, length differs {3} != {4}", i, row.ItemArray[0].ToString(), row.ItemArray[1].ToString(), row.ItemArray[2].ToString(), newrow.ItemArray[2].ToString());
if (i == 624)
OdbcCommand sqlComm = new OdbcCommand(_query2, _mySQLNew);
sqlComm.Parameters.AddWithValue("@oldtext", "Test by GBR");
int rowsaffected = sqlComm.ExecuteNonQuery();

Thanks for the reply. It is not possible to do a sample to show the issue because you need the bugzilla DB. Rather hope this issue rings a bell with someone.
Row state goes from "Modified" to "Unchanged" after the resultsTableNew.Rows[rowCount].AcceptChanges(); line. No errors.
Nb: I added "
Allow User Variables=True;" to the connection string.
I suspect the issue is related to MySQL quirk perhaps ?
I am using a 3.51 ODBC connector.
The direct SQL update "update longdescs set thetext='Test by GBR' where comment_id=625;"
works. Trying to use a var on the right hand side does not.
I expanded the sqlComm object and can see the added parameter in it.
"UPDATE longdescs SET thetext = @oldtext WHERE comment_id=625";
Does not work, i.e. I can't get the var to be used. Text size is usually 1k but can get to 60k in a comment.
>> A manual alternative if someone can suggest how would be fine, as this is a one of fix to 6000 records. i.e.
- clear comment field
- manually add 8K of info (whatever is the OK size) handling any " or ' in the data streams
- repeat addition of data until comment filled up
(context bugzilla)
               _mySQL =
newOdbcConnection(@"DRIVER={MySQL
ODBC 3.51 Driver}; SERVER=xxxxx; PORT=3306;
                DATABASE=bugs; USER=xxx; PASSWORD=xxx; Allow User Variables=True;
OPTION=0"
                _mySQL.Open();

How to Update Particular row in a table from OAF page

Hi Can anyone please help me on the following requirement:
In my oaf page i am displaying table values(supplier site details from base tables) with update and delete icons . When i click on update button a new page opens in which we used to update the values and click on apply button which again comes back to the original page.
So when i click on apply button on update page i have to first search for the site in the site table whether it exists or not, if not exists i have to create a new row and save the data, if site exists in the table i have to update the row of a table for that particular site. I have written code for this but unable to achive the requirement, it is not updating the existing row of the table. And i am doing all this on the Temp tables.
So now when i save, previous transaction is also updating along with the current transaction. That means when i m trying to save 2nd transaction values , 1st transactions values are getting updated with the 2nd transaction values(2 rows are getting updated)
Can anyone help me with the code used for updating the current row of the table. Please correct me if i m doing anyting wrong in code.
following is the current code i m using and which is failing :
Controller Code
if(pcontactaction.equals("createECdetailsEvent")) {
String currentSiteName=pageContext.getParameter("SiteName");
System.out.println("Selected Site Name is : " + currentSiteName);
Serializable x[]={reqNum,suppId,currentSiteName,pnotifMethod,pfaxNum};
System.out.println("Invoking AM Method.........");
am.invokeMethod("initCreateECDetails",x);
System.out.println("initCreateECDetails Method Executed. ");
//am.invokeMethod("save");
localOAApplicationModule.getTransaction().commit();
pageContext.setForwardURL(
"OA.jsp?page=/oracle/apps/floaf/flpos/supregister/webui/ECDetailsPG"
, null //not needed as we are retaining menu context
,OAWebBeanConstants.KEEP_MENU_CONTEXT
, null //not needed as we are retaining menu context
,null // no parameters are needed
,true //retain AM
,OAWebBeanConstants.ADD_BREAD_CRUMB_NO
,OAWebBeanConstants.IGNORE_MESSAGES);
AM Code
public void initUpdateECDetails(String request_number,String supplier_id,String site_name,String site_id,String notification_method,String fax_number)
OADBTransaction localOADBTransaction = getOADBTransaction();
String siteToUpdate;
siteToUpdate=site_name;
String siteidToUpdate;
siteidToUpdate=site_id;
System.out.println("Site Name to Update or Create is : " + siteToUpdate);
System.out.println("Site Id to Update or Create is : " + siteidToUpdate);
System.out.println("Inside Update EC Details MEthod.");
OAViewObject suppSiteDetVO = getFLPOSSuppSiteDetailsVO1();
FLPOSSuppSiteDetailsVORowImpl sro=null;
String existingWhereClause = suppSiteDetVO.getWhereClause();
suppSiteDetVO.setWhereClause(null);
suppSiteDetVO.setWhereClauseParams(null);
suppSiteDetVO.setWhereClause("SUPPLIER_ID = :1 AND REQUEST_NUMBER = :2 AND SITE_ID = :3 ");
suppSiteDetVO.setWhereClauseParam(0, supplier_id);
suppSiteDetVO.setWhereClauseParam(1, request_number);
suppSiteDetVO.setWhereClauseParam(2, site_id);
suppSiteDetVO.executeQuery();
suppSiteDetVO.setWhereClauseParams(null);
suppSiteDetVO.setWhereClause(existingWhereClause);
int rowcount = suppSiteDetVO.getRowCount();
System.out.println("Fetched Rows : " + rowcount);
if (rowcount == 0) {
Row row = suppSiteDetVO.createRow();
System.out.println("Row is : " +row);
suppSiteDetVO.insertRow(row);
String siteId = getOADBTransaction().getSequenceValue("FLPOS_SITE_ID_SEQ").toString();
System.out.println("New Site ID : " + siteId);
row.setNewRowState(Row.STATUS_INITIALIZED);
row.setAttribute("RequestNumber", request_number);
row.setAttribute("SupplierId", supplier_id);
row.setAttribute("SiteName", site_name);
row.setAttribute("SiteId", siteId);
row.setAttribute("FaxNo",fax_number);
row.setAttribute("NotificationMethod",notification_method);
System.out.println("New Row Created for Supplier Site.");
System.out.println("Data Saved to table.");
else{
System.out.println("Inside Else Block ");
try {
System.out.println("Inside Try Block ");
Row[] row = suppSiteDetVO.getAllRowsInRange();
for (int i = 0; i < rowcount; i++) {
sro = (FLPOSSuppSiteDetailsVORowImpl)row;
String psiteName=sro.getSiteName();
Number psiteid=sro.getSiteId();
System.out.println(" p Site Name is : " +psiteName);
System.out.println(" p site id is " +psiteid);
if(psiteid.equals(siteidToUpdate) ) {
sro.setAttribute("FaxNo",fax_number);
sro.setAttribute("NotificationMethod",notification_method);
//getOADBTransaction().commit();
break;
catch (Exception e) {
System.out.println("Exception in update : " + e);
}

Please answer following:
1. Are you using EO based VOs or ReadOnly VO?
2. What is your VO Query for the search and update?
3. Why have you based your logic on site_name; you should have used site_id?
4.Are you getting correct site name in handling createECdetailsEvent event in CO?
5. In case of update are you getting correct values on the Update Site Details?
6. On coming back from Update page to Supplier Site Search page, do you see old values of the site or the new values in the results table?
Please share the screenshot if possible.
-Prince
[email protected]
http://princekapoor82.blogspot.com

How to update multiple rows using cursor.

hi all,
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and gives error:
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Mardan

thanks dear,
i tried the following code outside the loop
but the same problem.
here is the code:
Declare
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thanks
Muhammad Nadeem

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Whilst you could raise property changed on every field in an item, that would of course mean implementing inotifypropertychanged on a wrapper object, then iterating all of those properties.
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compile this file first....
import java.applet.*;
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import java.awt.event.*;
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import java.awt.event.ActionListener;
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import javax.sound.sampled.TargetDataLine;
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import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
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import javax.sound.sampled.*;
import javax.swing.*;
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 public void init()
 Panel panel = new Panel(new FlowLayout(1));
 comp = new JTextArea(50, 50);
 comp.setPreferredSize(new Dimension(50, 50));
 comp.setEditable(false);
 JButton startrecording = new JButton("Start");
 JButton stoprecording = new JButton("Stop");
 comp.append("Please record your Voice Password...\n");
 GridBagLayout gridbag = new GridBagLayout();
 GridBagConstraints c = new GridBagConstraints();
 getContentPane().setLayout(gridbag);
 c.weightx = 1.0D;
 c.weighty = 1.0D;
 gridbag.setConstraints(comp, c);
 gridbag.setConstraints(panel, c);
 getContentPane().add(comp, c);
 getContentPane().add(panel, c);
 c.weightx = 0.0D;
 c.weighty = 0.0D;
 startrecording.setEnabled(true);
 stoprecording.setEnabled(true);
 startrecording.addActionListener(this);
 gridbag.setConstraints(startrecording, c);
 getContentPane().add(startrecording, c);
 stoprecording.addActionListener(this);
 gridbag.setConstraints(stoprecording, c);
 getContentPane().add(stoprecording, c);
 int width = 300;
 int height = 200;
 setSize(width, height);
 setVisible(true);
 boolean looping = false;
 public void actionPerformed(ActionEvent ae)
 if(ae.getActionCommand().equals("Start"))
 createRecorder();
 recorder.start();
 System.out.println("Start Button Clicked");
 } else
 if(ae.getActionCommand().equals("Stop"))
 recorder.stopRecording();
 System.out.println("Stop Button Clicked");
 private void createRecorder()
 String strFilename = "C:\test.wav";
 File outputFile = new File(strFilename);
 AudioFormat audioFormat = new AudioFormat(javax.sound.sampled.AudioFormat.Encoding.PCM_SIGNED, 44100F, 16, 2, 4, 44100F, false);
 javax.sound.sampled.DataLine.Info info = new javax.sound.sampled.DataLine.Info(javax.sound.sampled.TargetDataLine.class, audioFormat);
 TargetDataLine targetDataLine = null;
 try
 targetDataLine = (TargetDataLine)AudioSystem.getLine(info);
 targetDataLine.open(audioFormat);
 catch(LineUnavailableException e)
 comp.append("unable to get a recording line\n");
 e.printStackTrace();
 System.exit(1);
 javax.sound.sampled.AudioFileFormat.Type targetType = javax.sound.sampled.AudioFileFormat.Type.WAVE;
 recorder = new SimpleAudioRecorder(targetDataLine, targetType, outputFile);
 comp.append("Press ENTER to start the recording.\n");
 try
 System.in.read();
 catch(IOException e)
 e.printStackTrace();
 comp.append("Recording...\n");
 comp.append("Press ENTER to stop the recording.\n");
 try
 System.in.read();
 catch(IOException e)
 e.printStackTrace();
 comp.append("Recording stopped.\n");
 private JTextArea comp;
 private JButton startrecording;
 private JButton stoprecording;
 private SimpleAudioRecorder recorder;
}I intend to use this for verifying the username, password and a voice password over the web....as shown in the following code...
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<meta http-equiv="Content-Language" content="en-us">
<title>Home Page</title>
<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<meta name="Microsoft Theme" content="artsy 011, default">
<meta name="Microsoft Border" content="tl, default">
</head>
<body background="arttilea.jpg" bgcolor="#000000" text="#FFFFCC" link="#FF9900" vlink="#999900" alink="#669933">

 Please enter login
 details below:
<form>
<table border=0 cellpadding=3 cellspacing=3>
<tr>
 <td align=right width="74">
 Username
 </td>
 <td width="335">
 <input type=text
 name=username size="20">
 </td>
</tr>
<tr>
 <td align=right width="74">
 Password
 </td>
 <td width="335">
 
 <input
 type=password name=password size="20">
 </td>
</tr>
<tr>
 <td align=center width="74">
 Voice
 Password Check
 </td>
 <td width="335">
 
<APPLET CODE="AppletTest.class" ALIGN="MIDDLE" WIDTH=272 HEIGHT=38 NAME="AppletTest.class"></APPLET> 
 </td>
</tr>
<tr>
 <td colspan=2 align=center>
 <input type=submit value="Enter Website" name="Submit">
 </td>
</tr>
</table>
</form>
 This page was last updated on 25/03/04.
</body>
</html>I will be very grateful if somebody could help me out....as this is my first time at java programming ....also my first time for using this forum!
Thanks,
Regards,
Mayur Patel

Hi
I Learned how to read a file text and Parse as StringTokenizer. But still i don't know how to read the Individual tokens into to database.
But now i face a new Problem, i am not able to sort it out.
i am posting my code
import java.io.FileReader;
import java.io.FileWriter;
import java.io.BufferedReader;
import java.io.PrintWriter;
import java.io.IOException;
import java.io.*;
import java.util.*;
public class CSVExample {
 public static void main(String[] args) throws IOException {
 BufferedReader inputStream = null;
 PrintWriter outputStream = null;
 try {
 inputStream = new BufferedReader(new FileReader("file.csv"));
 String text;
 while((text=inputStream.readLine())!= null)
 StringTokenizer st = new StringTokenizer(text);
 if(st.hasMoreTokens())
 System.out.println(st.nextToken());
 } finally {
 if (inputStream != null) {
 inputStream.close();
}Here the Problem is The file.csv has got two fields ID, NAME The content of this file is as follows
T12,MR.RAJ KUMAR
T13,MR.EARNEST DIES
T14,MR.MATHEW HYDEN
Now when i StringTokenize this File The Output printed as follows
T12,MR.RAJ
T13,MR.EARNEST
T14,MR.MATHEW
That means when it finds the Space it is not printing the Remaining Text.
Please Help me in this and then Tell me how to INSER The Tokens into the Database Table
Thank you for your service
Cheers
Jofin

How to update single row of ms access database

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