Public NotInheritable Class OracleConnection
    Inherits DbConnection
    Implements ICloneable

Dim instance As OracleConnection

public sealed class OracleConnection : DbConnection, ICloneable

public ref class OracleConnection sealed : public DbConnection, ICloneable

public final class OracleConnection extends DbConnection implements ICloneable

public final class OracleConnection extends DbConnection implements ICloneable

Public Sub InsertRow(ByVal connectionString As String)
    Dim queryString As String = _
      "INSERT INTO Dept (DeptNo, Dname, Loc) values (50, 'TECHNOLOGY', 'DENVER')"

    Using connection As New OracleConnection(connectionString)
        Dim command As New OracleCommand(queryString)
        command.Connection = connection
        Try
            connection.Open()
            command.ExecuteNonQuery()
        Catch ex As Exception
            Console.WriteLine(ex.Message)
        End Try
    End Using
End Sub

public void InsertRow(string connectionString)
{
    string queryString = 
        "INSERT INTO Dept (DeptNo, Dname, Loc) values (50, 'TECHNOLOGY', 'DENVER')";
    using (OracleConnection connection = new OracleConnection(connectionString))
    {
        OracleCommand command = new OracleCommand(queryString);
        command.Connection = connection;
        try
        {
            connection.Open();
            command.ExecuteNonQuery();
        }
        catch (Exception ex)
        {
            Console.WriteLine(ex.Message);
        }
    }
}

using System;
using System.Data;
using System.Data.OracleClient;

class Class1
{
    static void Main()
    {
    }

    public void InsertRow(string connectionString)
    {
        string queryString = 
            "INSERT INTO Dept (DeptNo, Dname, Loc) values (50, 'TECHNOLOGY', 'DENVER')";
        using (OracleConnection connection = new OracleConnection(connectionString))
        {
            OracleCommand command = new OracleCommand(queryString);
            command.Connection = connection;
            try
            {
                connection.Open();
                command.ExecuteNonQuery();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }
    }