C# SQL Server จะ UPDATE 2 ตาราง ทำอย่างไงหรอครับ ??

 {
        strSQL = "UPDATE CreateSchedule SET " +
        " ScheduleID = '" + this.txtId.Text + "' " +
        " ,NameSchedule = '" + this.txtnameSc.Text + "' " +
        " ,Date = '" + this.txtDate.Text + "' " +
        " ,StartTime = '" + this.ddlTime1.SelectedItem.Value + "' " +
        " ,EndTime = '" + this.ddlTime2.SelectedItem.Value + "' " +
        " ,Location = '" + this.txtlocation.Text + "' " +
        " ,Boss = '" + this.ddlBoss.SelectedItem.Value + "' " +
        " ,Name = '" + this.txtNC.Text + "' " +
        " ,Tel = '" + this.txttel.Text + "' " +
        " WHERE ScheduleID = '" + Request.QueryString["ScheduleID"] + "' ";

        objCmd = new SqlCommand();
        objCmd.Connection = objConn;
        objCmd.CommandText = strSQL;
        objCmd.CommandType = CommandType.Text;
        objCmd.ExecuteNonQuery();

        strSQL = "UPDATE totalWork SET " +
        " workID = '" + this.txtId.Text + "' " +
        " ,workName = '" + this.txtnameSc.Text + "' " +
        " ,workdate = '" + this.txtDate.Text + "' " +
        " ,worktime = '" + this.ddlTime1.SelectedItem.Value + "' " +
        " ,worktime2 = '" + this.ddlTime2.SelectedItem.Value + "' " +
        " ,worklocation = '" + this.txtlocation.Text + "' " +
        " ,workboss = '" + this.ddlBoss.SelectedItem.Value + "' " +
        " WHERE workID = '" + Request.QueryString["ScheduleID"] + "' ";
        objCmd = new SqlCommand();
        objCmd.Connection = objConn;
        objCmd.CommandText = strSQL;
        objCmd.CommandType = CommandType.Text;
        objCmd.ExecuteNonQuery();

		try
        {
            
			this.lblStatus.Text = "Record Updated";
			this.lblStatus.Visible = true;
		}
		catch (Exception ex)
		{
			this.lblStatus.Text = "Record can not update";
		}

    }