I have made this code, which is to update the MySQL db, the only problem is that even though i got try on, it dosnt catch any erorrs, and the code is not working, meaning it dosn't update anything in the db.
code:
Private Sub updateSqlData()
Dim nSQL As String
[code]......
this is the code
Dim con As New OleDb.OleDbConnection
Dim com2 As New OleDbCommand
Dim constring As String = ConfigurationManager.ConnectionStrings("esourcecon").ConnectionString
con = New OleDbConnection(constring)
com2 = New OleDbCommand("UPDATE Customer SET CName = @CName, CAdd= @CAdd, CTel= @CTel, Cmob= @CMob WHERE CName='" & C1.Text & "' ", con)
[Code]...
id is an autonumber field and if i change the where string to another column then also i dont get any error and the values are still not entered
I'm connecting to my mysql server using ODBC in vb.net, the database is shared throughout the company because it is used in an accounting program (simply accounting), each user has their own account user/pass to login to the database. I have developped a program that uses the accounting database and combines it with other information, my problem is that at least once a day I get this error when I run my program: "(10061) ERROR [HY000] [MySQL][ODBC 3.51 Driver]Can't connect to MySQL server on"and the error persists for at least 4 hours, for some reason it starts to work again later on in the day.
View 1 RepliesI have been on a database project for a while now. I wanted to be able to make changes to my database using the update command of a Datagridview control.However, I have been faced with a series of unsuccessful outcomes.I want to do this how do I go about it?
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Im going to get started.Im setting up an hwid login for my vb.net program,
To be safe, im not directly connecting to my db from the program, because if it was cracked, my db info is leaked,so i want it running through php,
this is my current php code
<?php
$con = mysql_connect("localhost","username","password");
if (!$con)
{
die('Could not connect: ' . mysql_error());
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of course, i have removed my db info, but im getting this error Parse error: syntax error, unexpected T_VARIABLE in db.php on line 10
I cant seem to find what the problem is, what i want to do is have the program submit the hwid like this site.com/db.php?hwid=hwid here and have it echo the name in the row of the hwid submitted.
I'm creating a windows service with a timer that will tick every few seconds and then query a database. The timer for the service works fine, but as soon as I add any of the MySql details it stops working. Just adding the few lines below stops it from working
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I am using MySQL 5.5 and i linked it with my ASP.net Application . i added a dataset to link my application within the MySQL stored procedure !!! the problem is when i call any stored procedure which contains BOOLEAN like this one :
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I got the whole database thing figured out now I've got a problem with these parametrized queries. If I remove them and just explicitly put in the data I'm looking for the datareader works, however doing as I have below returns no results in the datareader.
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Ok so I have a Mysql dsetup called in-out and I have written a vb.net client program to get information from the table in the database, display it in a data grid view, and then allow to user to edit this information and update it on the server. Right now I am hosting the server on my Gateway laptop and also connecting to it from the same laptop therefore I'm using localhost as the server name. My problem is that when I go into the program and change the information and click update, nothing happens... the information stays the same yet there is no sign of an error, syntax failure, or program crash.
I've tried running this on another computer in my house and i get the same results. I can access the information without a hitch but updating it is where I run into trouble. If there was a problem with my code it would have displayed some sort of error or asked me to debug my script, which would have made it a lot easier to solve, therefore i am certain that it has something to do with my database. Before I got to this step, i kept getting an error when retrieving the information that said something like
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I have been trying to update my database I only receive a msg box replyng that my msg is successfull updated but when i check my database no data is being saved!
here is my code for update
CODE:
Here is my changePassword button code where I call the method UpdateDB:[b]
CODE:
I have a program, that on form load, updates a value. The problem is, that it doesn't work!
my
Imports MySql.Data.MySqlClient
Public Class Form1
Dim MysqlConn As MySqlConnection
Dim UserCommand As New MySqlCommand
Dim SQL As String
[Code] .....
And the problem is that it doesn't update the points. I set the points to 10 via PHPmyadmin, and run the program, but when i go back to PHPmyadmin, its still 10.
i have problem to search and update record database sql. this is my code. i using mysql database and Microsoft Visual Basic 2008
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but i have error on Word command.ExecuteNonQuery(): MySqlException was unhandled. There is already an open DataReader associated with this Connection which must be closed first
I am trying to update a field in my MySQL database using VB.NET.....
Basically, I can read the field's content, using this code:
SQL = "SELECT * FROM `boomtable` WHERE `Tab1` = 'CLOSED'"
However, I want to update the Tab1 field to have the value OPEN if it's currently closed, and make the value CLOSED if it's currently OPEN.. Right now, it's CLOSED, (I put the value in manually when making my table)
Here is the code I'm using that changes my label based on the Tab1 field's value that works fine... Except I want to actually make it update the field in the database in addition to changing the label text.[code]...
I am trying to update mysql table from a txt file using vb.net. So far I've found code here and there and been able to extract the data from the txt file, now my question is how to update mysql from the same dataset or xml file. Here is my code to populate the datagrid/dataset/xml file.what is the easiest way to update mysql assuming "Orden" is my primary key in mysql.
OpenFileDialog1.Filter = "Text File|*.txt"
OpenFileDialog1.Title = "Open File..."
OpenFileDialog1.FileName = "trackings"
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I Use visual Basic 8.0 and Mysql 5.0 I have one Table1:
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I want to use Datagridview to update Mysql table1. All changes as update, change, delete automatically processed into Mysql table1. Here by my code
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I have been working on something that checks an MySQL Database to check something - however the program stops responding because it is constantly checking the database. Is it possible to have it wait a few seconds to recheck the database? [code]...
View 2 RepliesI have built a dataview where i display data information from tables which was created in MySQL. Can i update the datagrid cells by just clicking it and entering new information ? By updating the datagrid cells, will it automatically the relevant database tables ? If yes, how do i go about writing codes. All the cells now just consist of text format data.
View 11 RepliesI can't figure out how to update a field in a MySQL db using MySQL Connector Net 5.2.5. Can anyone show an example code?
View 2 Repliesupdate statement, i am trying to update a row within a access 2007 database here is my code.
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I am building a vb.net application for a client, and there is a problem. I am connecting to a mySQL server, and using the UPDATE command to update certain fields to the specified values, however, once I run this code, the fields on the mySQL server turn EMPTY. Here is my code :
Sub updateresidents()
'MAKES NO SENSE; UPDATES EMPTY FIELDS ON mySQL SIDE??!!!!!!!!!!!!!!!!!!
Dim connection As MySqlConnection
[Code]....
I am using VB.NET with a MySQL database. I want to update this code to do it all in ONE SQL instead of THREE. Here's the code I'm using, works fine but too slow with multiple lines...
If count3 = "1" Then
Dim myCommand As New MySqlCommand
Dim myAdapter As New MySqlDataAdapter
Dim SQL As String
myCommand.Connection = conn
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I've been working with a remote mysql database. The design of the database pretty much requires that I use SELECT commands that include multiple tables, and sometimes joins. Updating a single table query is SO EASY, yet dealing with multiple tables has me pulling my hair out.
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What's killing me is that if I make a change to a field in the products table in the datagridview and press button1, the changes are saved. If I make a change to a field in the specials table in the datagridview and press button2, the changes are saved. If I combine the two updates together in a single routine, only the first one is saved. I presume this is because after the first update executes, the dataadapter no longer reports that there are any changes to save, since the update already happened.
I've tried breaking this up into separate dataadapters for each table, but then even using dataset relations, I can't get the data together in a single datagridview. On top of that, the grid itself is only intended to be used for searching and querying data. It still needs to be bound along with a set of textboxes that accept the input.
Lastly, this database is part of an ever-evolving website database with dozens of tables that need interfacing. I just can't see manually maintaining hand written sql statements for every table. That's why I've been working so hard to get the commandbuilder to handle it.
I've just switched from classic ASP to .net and I always used the following to SELECT, INSERT, UPDATE and DELETE from my MySQL databases:
' Create db connection
Function dbConn()
Set objConn = Server.CreateObject("ADODB.Connection")
objConn.Open "driver=x;Server=x;Port=x;Option=x;Database=x;Uid=x;Pwd=x"
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And to insert, update or delete I'd use:
Call SQL(1,"DELETE FROM Users WHERE UserID = 1")
My program connects to a Mysql Database. It allow registration and login. I Need this to update the "BankACCid" column(?) in Mysql for the current logged in user.This is the code that doesn't work
MySql Connection
Dim conn As MySqlConnection
conn = New MySqlConnection()
[code]....
I have an issue with a data base updating it won't update for me in debgging mode it is stopping here on this bit of code which is highlighted in red. the error which comes up is .(update requires a valid update command when passed datarow collection with modified rows.)
Public Sub UpdateDataSource(ByVal ChangedRows As database.dataset1)
Try
'The data source only needs to be updated if there are changes pending.
If (Not (ChangedRows) Is Nothing) Then
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What is wrong with this code. It does not update the access database and no error.
Dim conn As New OleDbConnection
Dim sqlQRY As String = "SELECT * FROM StdMaster WHERE StuNo = " & txtStudentNo.Text & " ORDER BY StuNo"
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With the following SQL " Dim Query As String = "UPDATE JobName_tbl SET [JobDate]=@NewDATE, JobAddress=@Newaddress Where JobID=@ID"
nothing happens nothing gets updated nor do I get an error.But as soon as I remove the [JobDate]=@NewDATE, it works fine.
Here is my code:
Public Sub UpdateAddress(ByVal JobID As Integer, ByVal JobUpdate As String, ByVal NewDate As Date)
Try
Dim Query As String = "UPDATE JobName_tbl SET [JobDate]=@NewDATE, JobAddress=@Newaddress Where JobID=@ID"
Dim DBcon As New DBConnection.Connection
[code]....
I'm running Microsoft Visual Studio 2010 SP1 and SQL Server 2008 R2 and I'm using vb.net coding. Any other information that you need to know, just ask.I've got a form in a master/ details setup that has one table in details view in the top half of a split container, and another table in a dgv in the bottom half of the container. Everything is working well except for one value. My dueDate value always reverts back to the date set when the record was made, which is the default value put in when a new record is made. It doesn't give me any errors to work off of, and I've even went and coded the update by hand with this code:
Dim Num, Contract, ID, Receive, Due, Notes, Inspect, SO, PO, Entry As String
Num = Order_NumToolStripTextBox.Text
Contract = Order_ContractTextBox.Text
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All that happens when I hit save is my due date will revert back to the old due date. I have no clue what would/could cause this. I've went through to see if anything that would store the original dueDate (from a check I set up in my coding) is coded somewhere it shouldn't be, but all it does is make the check that something had changed while on the form. it takes an array of all my text boxes and checks it with an array made before leaving the form. Nowhere else is the original dueDate saved.
how to add, insert, delete and search data in vb 2008 using mysql databases.
View 1 RepliesI am using VB 2005 and the following code returns an error: No value given for one or more parameters. I swear I've done this before without any problems but I can't find my original code.[code]I tested the value of oldid which is set earlier and it does have a value.
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