Odbc.OdbcConnection Vs. OleDb.OleDbConnection And Sqlclient.SqlConnection?
Apr 27, 2009
I have a VB.net 2005 application that will use both Access and SQL server databases. I have DSN namesfor both access and sql server database. I used OleDb.OleDbConnection to open the Access database and it works fine. I am trying to make it work with sql server database. Do I have to have to have separate source codes using Sqlclient.SqlConnection and its related name spaces? Can I use odbc.OdbcConnection name space
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Jan 26, 2009
i am trying to connect to an MS Access database and I am getting an erro message on the following line of
searchtable_command = New SqlClient.SqlCommand(searchtable_string, testsearch_connection)
Error:'System.Data.Odbc.OdbcConnection' cannot be converted to 'System.Data.SqlClient.SqlConnection'.
Here my connection string:
Dim testsearch_connection As New Odbc.OdbcConnection("Provider=MSDASQL;Driver={Microsoft Access Driver (*.mdb)};Dbq=C:CesarAccessdatabase.mdb;Uid=admin;Pwd=;")
What am I missing?
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Mar 18, 2011
everything works except for the Dim con As New OdbcConnection("DSN=yoh;") why?
imports System.Data.Odbc
Public Class Class1
Dim con As New OdbcConnection("DSN=yoh;")
Dim cmd As New OdbcCommand
[code]....
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Nov 6, 2009
I have seen some comments about the difference of sqlconnection vs oledbconnection.
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Mar 10, 2009
I have imports namespace System.Data.SqlClient.I just create object of SqlConnection,But error is there-
'SqlConnection' is ambiguous in the namespace 'System.Data.SqlClient'.
[Code]...
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Jan 23, 2011
I am creating class libraries in my project so that I can update code without having to update the whole app.I created a class library project and added some code to it. I also added a reference to System.Data.SqlClient and also imported it into the class file.I am getting an error and I have never seen it before. Been looking online and not able to find an answer yet.
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May 4, 2007
Is there something wrong with my connection string that I would get this exception thrown back at me from my code? I have the string saved in the code and when I try to create an SqlConnection I get the exception above thrown and below is my connection string which is actually the address to my DB file.
Connection = "Data Source=.SQLEXPRESS;AttachDbFilename= C:Documents and SettingsTTTMy DocumentsBASEO.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True"
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Feb 16, 2009
I want to upgrade from OleDb to SqlCLient, I mean from .mdb file to .sdf file.I have installed MS SQL Server 2008 Express Compact edition and designed my database files and created tables/fields and now gonna copy it to my application directory so my application will work with that on TARGET systems, WITHOUT having SQL Server installed on target systems...Well, my old connection string as follows:
Code:
"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + "CompanyNameProductNameDatabase.mdb;Jet OLEDB:Database Password = secret"
[code]....
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Sep 15, 2010
I have been trying my hand at this for some days now and just cant get anything to work. Below is the code im currently using to delete a row from a database table, the problem when trying to build the project line 5 is giving this error about the value con" Value of type String cannot be converted to 'System.Data.OleDb.OleDbConnection' "
Dim con As String = "Provider=Microsoft.Jet.OLEDB.4.0;" & "Data Source=Customers.mdb"
Dim cnn As New OleDb.OleDbConnection(con)
cnn.Open()
[CODE]...
I have also tried using this code below, but to no success. Im basically just looking for something rock soild that i can use to accomplish this task. Been stuck on this for quite a while now.
CustDetailsTableAdapter1.Connection.Open()
Me.CustDetailsTableAdapter1.Delete(txtDelCustN.Text, txtDelCustSname.Text, txtDelCustTel.Text, txtDelCustAddr.Text)
CustDetailsTableAdapter1.Connection.Close()
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Feb 18, 2010
i am using visual studio 2008 for my final year project.i m making billing system.the system using micrososft access as a database.i used odbc as a connction with database.which one is better?odbc or oledb?
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Jan 30, 2011
I use vb.net and windows form and sqlserver
I added Data Source(Microsoft SQL Server (SqlClient)) to my project. and now I need to change it to ODBC Data Source .
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May 23, 2010
Why I am getting the following error:
Error: "ExecuteReader" is not a member of 'System.Data.OleDb.OleDbConnection'.
The following is the
Private Sub txtSearch_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtSearch.TextChanged
Dim MyReader As OleDbDataReader
If txtSearch.Text <> "" Then
[code]....
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May 24, 2011
Can anyone tell me how to list ODBC and OLEDB drivers that are installed in the windows system?
I want to display them in a DGV and create a connection string from the users choice.
XP,Vista and Widows 7
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Nov 9, 2009
i want to ask what is the difference between oledb connection and odbc connection. I have a case, my office used ncomputing then i have to developed an application using sqlserver 2000 and vb.net 2005, i used oledb connection. When i try to implement it in ncomputing, why user must has admin access level and dbo level in sql server, it seems trouble when all users are admin. But there's a rumor that when using odbc connection, we dont need to give admin access level for users.es.
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Aug 4, 2009
I'm trying to run a query against a MySQL 5.1 db using the odbc connector in an excel vb macro. I've read loads of code where people do like I do bellow but I just can't get it to work. I just keep getting syntax error whenever it compiles. I have almost no experience with vb but some with .net.
[code]...
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Oct 24, 2011
I have a small vb.net application that fires a crystal report through crystal viewer.
The report uses an ODBC connection provided by 32-bit software accounts package, which is installed in the ODBC 32-bit This all works fine on 32-bit XP and 32-bit Win7 with no problems, When run on a win7 64-bit machine the application launches ok, but when it comes to running the report, it prompts for a database logon box for the odbc connection.
When the report is run seperate on its own, on the exact same pc through crystal reports desginer it runs fine, Its almost like the application is not picking the 32-bit ODBC set up is it the case that the connection needs to be coded rather than using the report connection,
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Oct 18, 2010
Just wondering if i might hit a snag in my program. Ive got 10+ users using the same files, via a Oledb to put info into an excel spreadsheet. If 2 or more people save there file at the same time will the program go into read only on one person. Normally one 3 will use the file at one time. I know Sql itself would be better to use. best way i can describe it, normally using excel if you manage to open the same file twice one opens as normal but the other opens as a Read only file, will the same thing happen if im using Oledb connections?
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Nov 23, 2006
i am new to vb .net i just want to ask why is it i don't see the odbc data adapter in the toolbox pane? i just have (under data) pointer, dataset, datagridview, bindingsource, and binding navigator.
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Feb 24, 2011
I am using oledbconnection object with access database engine 64 bit to get data from Excel file. While using sqlconnection object if sql string has these statements "SET ARITHABORT OFF;SET ANSI_WARNINGS OFF;" , then division by zero exception doesn't cause any problem. But while using oledbconnection these statements cause error. My code samples are below:
Dim PbpConn As OleDbConnection = New OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;" & _
"Data Source=C:BuzBeatDataPBPData.xls" & ";" & _
[Code]....
When SUM(pbA) has value "0" then it causes error and can't get data. is there a way to close the warnings and division by zero exceptions?
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Jul 23, 2011
I'm converting a VB6 + ADODB app to VB.NET 2010 and targeting both x86 and x64 I understand that ADO is available in both 32 and 64 bits and that .NET supports it.The VB6 code uses ADODB and ADOX to work with OleDb and Odbc data sources. It also uses the Jet and Replication Objects 2.6 library to compact and copy Access database files (if the uderlying database it's using is Access)I'm wondering if I should consider using OleDbConnection/OdbcConnection in the .NET version of the software or stick with ADO.I've looked at OleDbConnection, OdbcConnection and SqlConnection and can see that porting the old code over would be time consuming and risky.
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Jul 30, 2009
Can I connect the .mdf file with OleDbConnection.
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Jun 12, 2009
HI!, i'm using VB.NET 2005. I want to use OleDbConnection in my .net application but it is not showing in the 'Data' section of the 'toolbox'. is there any way to import it to the toolbox.
NOTE: (Also OleDbDataAdapter, SqlConnection,SqlDataAdapter, etc are missing in toolbox)
Waiting for reply newbee
Vivekanand
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Apr 24, 2011
Dim con As New OleDb.OleDbConnection
Public outputs As New DataSet
sub main()
sqlquery("SELECT * FROM Students", "mark")
[code]....
Here is an image of my table data and design I am trying to read some values from a database using the oledb dataset however when I run the sql command and get down to outputting the value I am greeted with the following error: "IndexOutOfRangeException: There is no row at position 0.". Yet when I run the very same sql command in access I get back the data I wanted.When I am running the above code, no errors are produced until I get down to the last writeline where I want to output my data.
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Jun 9, 2011
i hve create 1 listview and all data from accessdatabase (using oledbconnection)in database hve 4 column, so in listview 4 column..can i view only 2 column in listview, example only column 1 & 2 only in listview.
[Code]...
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Jan 24, 2012
I'm developing application in VB.NET 2008.I'm reading data from Excel through OledbConnection. Here data are reading sometimes perfectly but sometimes it is missing to read some data.
Example :In Excel ,I have 79 columns in excel and 4 rows , first 3 rows are headers so after import i'll delete that rows and actual data starts from 4, so here i have only one row.After Reading through oledb, that dataset's datatable has only first 3 rows( first row became header and 2 & 3 row only in datatable, its ignoring 4th row)
[Code]...
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Apr 21, 2012
Assuming that an x64 version of ADOX is not available, how do I rename a Microsoft Access table from an x64 WinForms app using an OleDbConnection with the Microsoft.ACE.OLEDB.12.0 provider?
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Jun 22, 2009
Like we can retreive all the records from a table using this method:
While (Not rst.EOF)
....
End While
How to retrieve all the records when using OleDbConnection?
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Jan 13, 2011
I am trying to update some code. I have a vb file that begins with this...
Imports System.Data.SqlClient
Imports System.Data.Sql
Imports System.Data.SqlTypes
[Code].....
...and it accepts it. Why do I need to explicitly write out System.Data.SqlClient every time I use an object from that class???
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May 17, 2010
i would like to know if there's something wrong in this asp.net code:
mydatareader = mycmd.executeReader()
if myDataReader.HasRow then
// Do something
[code].....
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Jul 20, 2011
I am confused about something and I hope someone here can give me an answer
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