private void btnTestOracle_Click(object sender, EventArgs e)
        {
            EMPLOYEESRECORDSELECT[] selectRecords = new EMPLOYEESRECORDSELECT[0];

            // Initialize WCF client variables
            HR_Table_EMPLOYEESClient aaTableClient = null;

            try
            {

                // initialize the EMPLOYEES table client
                aaTableClient = new HR_Table_EMPLOYEESClient("OracleDBBinding_HR_Table_EMPLOYEES");
                //Security Credentials
                aaTableClient.ClientCredentials.UserName.UserName = "HR";
                aaTableClient.ClientCredentials.UserName.Password = "welkom";
                //Open Client
                aaTableClient.Open();
                // Select all records and write them to the textbox result
                selectRecords = aaTableClient.Select("*", "LAST_NAME = '" + txtLastName.Text + "'");
                txtResultOracle.Text = "First Name :" + selectRecords[0].FIRST_NAME + "\r\n" + "Email :" + selectRecords[0].EMAIL + "\r\n" + "Phone Number : " + selectRecords[0].PHONE_NUMBER;
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            finally
            {
                aaTableClient.Close();
            }

}