now i am using vb.net 2005 with mysql.
i need to update a table from csv file to database(mysql) . I have a csv file that contains bulk data.(it has F1,F2,F3,F4,F5,F6,F7 Columns, and F1, F2 are Primary)
i use Quote:
ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & FileNameString & ";Extended Properties=""Text;HDR=No;CharacterSet=437;FMT=Delimited"""
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i've been trying to figure out how to update a row in my database, using a set of fields from the current form. The code which i have made so far is shown below, however it always comes up with an error message:
Private Sub btnupdate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnupdate.Click
Dim SQL As String
Dim updatelogin As New OleDbCommand
Try
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I have recently wanted to start work on an application that uses an MS-ACCESS database. The problem is that no matter what I do, the actual database will not retain any records added. I have followed the Microsoft examples to the letter and it does not work. As long as I have my app running I can add, edit and delete the records. As soon as I close it and run it again, all the records are gone. The mdb is not read only, I've checked it. I also decided to try the my video collection example program that is included with VB 2005 and it will not retain any records either. Is there any code I need to add to get this to work or is my copy of VB 2005 broken? This is extremely frustration because I plunked down a lot of money for Visual Studio 2005 Professional. This is a key feature and it should work. Microsoft had me do a reinstall and apply a couple of patches and it still did the same thing. They told me either I am not coding it right or my system is flaking out. I did a fresh install of Windows (I even formatted the drive before installing), and reinstalled VS yet again and even with that being the only program on there, it still will not work. So I installed all my programs again, restored my backups and now a day and a half later I am writing this.
View 9 Repliesi have 3 user roles "ALGEMEEN,OZIS,VERPLEEGKUNDIGE".And I want them added to the database.But when I use the code below it only adds the userrole "ALGEMEEN" and not the other 2.
Dim cmdCheckLidVan As New SqlCommand("SELECT COUNT(*) FROM [Lid van] WHERE [Gebruikers-ID] = @ID AND [Rol-ID] = @RolID", connection)
Dim strRolArrCount As Integer
Dim strRolArr() As String
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i have an datagridview bound to an access database, the table is empty so i want to use the datagridview to insert and update data to the database.so if i enter a complete row of data, i have an update button that looks like this
vb Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Dim tableAdapter As HEALTHDataSetTableAdapters = New HEALTHDataSetTableAdapters.HEALTHDATATableAdapter()
tableAdapter.Update(HEALTHDataSet)
End Sub
I am using the select command to find a specific row and if its found update it but when I update back to live database I get a concurrency error. Here is my
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I am fresher in vb.net but I have experience in vb 6.0. But I want to connect database in sql server through sql connection. In that case how to create connection with window or sqlserver authintication mode and how to add or update new record in data base in batch transaction. Please help me with sample code.
So that I can understand eassily.
update statement, i am trying to update a row within a access 2007 database here is my code.
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I am using vb.net with access database. I am using sql. How can i update database with the value 40'6"(Feet and inches values)
View 5 RepliesWhat 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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Environment = VB.NET 2005 & Pervasive SQL 9.5 ADO.NET In a simplified example, I have single database table (customers) with the columns "customer_code_PK" and "customer_name" This table is presented in VB.NET 2005 as a single form datagrid (bindingsource/dataset). In this example, the database table is populated with the following data
customer_code_PK customer_name
SHELLShell Oil
BPBritish Petrolium
MOBMobile
In very simplified terms, code does the following;
sub on form load
fill dataset with database records (select * from customers)
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The datagridview loads the records correctly.Here is the sequence of operations that produces the bizzar behaviour.In the editable datagrid;
1.remove the row with PK = MOB -> save_button -> Database correctly updates
2.add a new row with PK = KFC -> save_button -> Database correctly updates
3.remove row with PK = SHELL -> save_button -> Database exception occurs
On this last command, the row SHELL is INSERTED!!, not removed.However, If I change ths save_button routine to this
save_button
call generate_custom_updateinsertdeletecommands
bindingsource endedit
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It works correctly !Is it correct that you would need to "refresh" the sql update commands after every tableadapter.update?
is there a way to update a database row with the update command by first defining all parameters and then all values just like you can in the insert command? "insert into table1 (parameter1,parameter2,....) values (value1, value2,....)"something like "set table1 (parameter1, parameter2) values (value1,value 2,...) where ...."?because I only know the syntax to define each parameters value "set table parameter1=value, parameter2=value2... where"
View 8 RepliesThis program is very difficult for me, but I must get threw it or I cannot finish... What I am doing is making a Database of foreign Languages with the spelling of the words and the pronounciation inside the database... The USER enters a paragraph of words into the translator textbox and pushed translate. The program has a DATABANK of words with the phonetic spellings and matches the word, then translates to phonetics. The problem is that new words keep appearing inside the language. So I incorporated a Database of 2 fields
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I created a dataset and i am using OleDbDataAdapter to insert new values to access database. But when i close the program and after open it, values are not in the database. How can i solve this problem? Also, i have another problem. When i write codes that
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i want to update my inventory table in database from another database name. Example: In VB, i had a form named Orderform. User need to select e product that they want and key in the quantity. all these information are able to store inside my database named ORDERTAB. but now the problem is i wanted to update another field in my database named INVENTORY by minus the quantity tat the user had key previously. i totally had no idea how it going to works.
View 3 RepliesI already deleted the record in my database and my problem is How can I update my listview that i already deleted the selected item it wont delete in my listview i have no clue how to do it??can someone elp me with this. . . .
Private Sub btnDelete_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDelete.Click
Dim SQL1 As String = "DELETE FROM Employee WHERE Employee_ID = '" & ListView1.SelectedItems(0).Text & "';"
Dim cmd As New MySqlCommand
Dim table As New DataTable
[code]....
Why does my code not update my Table...
Private Sub btnSaveChanges_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSaveChanges.Click
Me.EmployeeBindingSource1.EndEdit()
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I have an sqlserver 2000 database and i am able to add records and read from it but i cant modify existing records. My test table just hav user_id,Name, , Phone and State for columns.
updateSql = "UPDATE student " & _
"SET name = '" & Me.TextBox2.Text & "' " & _
"WHERE User_id = '" + Me.TextBox1.Text + "'"
cmd = New SqlCommand(updateSql, cn)
cmd.ExecuteNonQuery()
I cant get my update command to actually do anything.
I would like to update some fields in access using visual basic(2005).
I established the connection with the DB(access 2000) and when I run the program I edit the fields on DataGridView.
Then I click on the update button and when I access again my DB I don't see any changes... :s
Code from my updateButton:
Me.TableTableAdapter.Update(Me.TestDataSet1.table)
I dont have any problem with the conection to the DB and when I run the program I see all the fields from the DB(it has 2 fields).
I have been asked if its possible for an application that sits on a network folder for multiple users and check online to see if there is a newer version. If there is prompt the user to download it and load the new version.
View 5 Replieswith vb.net 05 + access 03 how can i use parametrized append query via vb.net 2005..i don't know hence i used this code but this code is working fine but only the first row is appending equal to the number of records (i loop variable)[code]
View 4 RepliesI cannot for the life of me work out why I get a concurrency error on the second update Here is my
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Im having a very strange problem.. I just copied the source code from one working application to this new application. It was working fine over there but not over here in new application. Neither it was showing any error nor updating the data. Below is the source code (method) that im using ..
public static void AppendViolations(string dsPath, DataTable dtSource, string PartitionID)
{
string ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Persist Security Info=False;Data Source=" + dsPath;
string SqlStatement = "select * from IncaViolations";
[code]....
I am trying to update my DGV with the following code. i have generated SQL update command in the tableadapter. but still the changes are not affecting the DB.
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As you may have seen in my other post, I have to switch over an all text SQL statement based database interaction program to using parameterized queries instead.I remember doing it this way in college but I don't seem to be able to recall one part of it. The program I wrote back then and some code samples here both point to doing the code as I did so far:
m_strSQL = "UPDATE [OWNER DATA] SET [FIRST NAME] = @strFName"
m_strSQL &= ",[LAST NAME] = @strLName"
Dim upCMD As New OleDb.OleDbCommand(m_strSQL, m_Connection)
upCMD.Parameters.Add("@strFName", OleDb.OleDbType.Char, 30, "[First Name]")
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it ran the SQL statement and that's that. Can I just do that with a parameterized query too without using the adapter.update()? And for bonus points, why the heck did I use that command in my old college program cuz I sure don't know?
I'm trying to update my database, I'm using access 2003, my problem is that for some reason I can update the first row but when I try to update any other rows after that I keep getting an error saying Column 'ProductID' is constrained to be unique. Value '7' is already present.
View 6 RepliesOkay have developed a form in vb.net cf using sqlce. I know this is the vb.net section but I feel it's a data issue. I have a table called STORES which has a primary key of two columns (ST_STORECODE & ST_CY_CODE).I populate a dataset with all the store data and to the following to find the required row:-
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When I step over the update command I get a concurrency error. Can someone PLEASE help me with this. I have spend days trying to fix it. All I want to do is find a row, do some changes and save it back to the database.
I had made a project in VB.NET 2005 with SQL SERVER 2005 used as database. Now i want to make a setup of this project but i am unable to integrate sqldatabase and .net framework in this setup project. Is there any way to do this. Because it is assumed that the client does not have .NET Framework installed nor he has SQL Server on his system and the worst condition would be he does not have even internet connection from where these two setups can be downloaded if we give the condition for downloading these programs from the net if the client does not have these programs installed on his machine.
View 2 RepliesI have code on log in form but it only get the latest data on username and password column on my database
Here is my code
Public Class Users
Dim MyLogIn As New myRecords
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
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This is my connection:
Imports MySql.Data
Imports MySql.Data.MySqlClient
Module myconnect
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This is my record:
Imports System
Imports System.Data
Imports MySql.Data
Imports MySql.Data.MySqlClient
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I recently upgraded the MS SQL Server installed on my personal computer from 2005 Express to 2008 Express. Problem is when I try to add an SQL database file to a project using VS 2005 I get an error message saying that the version of my database server is not supported, I must have SQL Server 2005 Beta 2 or later installed. I didn't do it yet but I'm pretty sure that when I open the other projects that I included a database file to it, I'm going to get the same error.
My question is it possible to have two SQL Servers installed on my machine? If so, is it a good idea to have two DB servers in the same machine?