Oracle Developer Tools for Visual Studio

Can someone please help me? I'm trying to create a simple table in VB.NET using the ODP. I am a newbie in the .NET world and seem to be having a difficult time. All of the samples online ask that we use SQL PLUS for creating the table in Oracle, but I want to create it with a click of the button on the Form. Here is my code below:

Private Sub btnCreateTbl_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCreateTbl.Click

' Open the connection
da.SelectCommand = New OracleCommand("DROP TABLE CARS", conn)
da.SelectCommand = New OracleCommand("CREATE TABLE CARS", "(carId INTEGER CONSTRAINT PKeycarId PRIMARY KEY," + "carBrand Char(10), Char(10), carCost Float)", conn)

Try
cmd.ExecuteNonQuery()
' Adding records the table
sql = "INSERT INTO CARS(carId, carBrand, carCost) " + "VALUES (1001, 'Ford', 'Taurus', 5523.98 ) "
cmd = New SqlCommand(sql, conn)
cmd.ExecuteNonQuery()
sql = "INSERT INTO CARS(carId, carBrand, carCost) " + "VALUES (1002, 'Chevy', 'Cavalier', 7353.64) "
cmd = New SqlCommand(sql, conn)
cmd.ExecuteNonQuery()
sql = "INSERT INTO CARS(carId, carBrand, carCost) " + "VALUES (1003, 'Mitsubishi', 'Eclipse', 8000.00) "
cmd = New SqlCommand(sql, conn)
cmd.ExecuteNonQuery()
sql = "INSERT INTO CARS(carId, carBrand, carCost) " + "VALUES (1004, 'Nissan', 'Maxima', 9999.00) "
cmd = New SqlCommand(sql, conn)
cmd.ExecuteNonQuery()
Catch ae As SqlException
MessageBox.Show(ae.Message.ToString())
End Try
End Sub 'CreateTableBtn_Click

End Class

Thanks in advance!