Showing posts with label VB.NET. Show all posts
Showing posts with label VB.NET. Show all posts
Creating Connections to Oracle Databases
' Visual Basic
Public Sub ConnectToOracle()
Dim conn As New OracleClient.OracleConnection()
' TODO: Modify the connection string and include any
' additional required properties for your database.
conn.ConnectionString = & _
"Data Source=;Integrated Security=yes"
Try
conn.Open()
' Insert code to process data.
Catch ex As Exception
MessageBox.Show("Failed to connect to data source")
Finally
conn.Close()
End Try
End Sub
// C#
public void ConnectToOracle()
{
OracleClient.OracleConnection conn =
new OracleClient.OracleConnection ();
// TODO: Modify the connection string and include any
// additional required properties for your database.
conn.ConnectionString = "Data Source=" +
";Integrated Security=yes";
try
{
conn.Open();
// Insert code to process data.
}
catch (Exception ex)
{
MessageBox.Show("Failed to connect to data source");
}
finally
{
conn.Close();
}
}
Creating Connections to ODBC Data Sources
' Visual Basic
Public Sub ConnectToOdbc()
Dim conn As New System.Data.Odbc.OdbcConnection
' TODO: Modify the connection string and include any
' additional required properties for your database.
conn.ConnectionString = & _
"FIL=MS Access;DSN=valid data source name"
Try
conn.Open()
' Insert code to process data.
Catch ex As Exception
MessageBox.Show("Failed to connect to data source")
Finally
conn.Close()
End Try
End Sub
// C#
public void ConnectToData()
{
System.Data.Odbc.OdbcConnection conn =
new System.Data.Odbc.OdbcConnection ();
// TODO: Modify the connection string and include any
// additional required properties for your database.
conn.ConnectionString = "FIL=MS Access;DSN=valid data source name";
try
{
conn.Open();
// Process data here.
}
catch (Exception ex)
{
MessageBox.Show("Failed to connect to data source");
}
finally
{
conn.Close();
}
}
Creating Connections to Access Databases
' Visual Basic
Public Sub ConnectToAccess()
Dim conn As New System.Data.OleDb.OleDbConnection()
' TODO: Modify the connection string and include any
' additional required properties for your database.
conn.ConnectionString = & _
"Provider=Microsoft.Jet.OLEDB.4.0;Data source=" & _
"C:\Documents and Settings\username\My Documents\dbFile.mdb"
Try
conn.Open()
' Insert code to process data.
Catch ex As Exception
MessageBox.Show("Failed to connect to data source")
Finally
conn.Close()
End Try
End Sub
// C#
public void ConnectToAccess()
{
System.Data.OleDb.OleDbConnection conn = new
System.Data.OleDb.OleDbConnection();
// TODO: Modify the connection string and include any
// additional required properties for your database.
conn.ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0;" +
@"Data source= C:\Documents and Settings\username\" +
@"My Documents\AccessFile.mdb";
try
{
conn.Open();
// Insert code to process data.
}
catch (Exception ex)
{
MessageBox.Show("Failed to connect to data source");
}
finally
{
conn.Close();
}
}
Creating Connections to SQL Server
' Visual Basic
Public Sub ConnectToSql()
Dim conn As New SqlClient.SqlConnection
' TODO: Modify the connection string and include any
' additional required properties for your database.
conn.ConnectionString = & _
"integrated security=SSPI;data source=SQL Server Name;" & _
"persist security info=False;initial catalog=northwind"
Try
conn.Open()
' Insert code to process data.
Catch ex As Exception
MessageBox.Show("Failed to connect to data source")
Finally
conn.Close()
End Try
End Sub
// C#
public void ConnectToSql ()
{
System.Data.SqlClient.SqlConnection conn =
new System.Data.SqlClient.SqlConnection ();
// TODO: Modify the connection string and include any
// additional required properties for your database.
conn.ConnectionString =
"integrated security=SSPI;data source=SQL Server Name;" +
"persist security info=False;initial catalog=northwind";
try
{
conn.Open();
// Insert code to process data.
}
catch (Exception ex)
{
MessageBox.Show("Failed to connect to data source");
}
finally
{
conn.Close();
}
}
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