IBE.SQL.EliteDBIO.GetCoordinates C# (CSharp) Method

        internal Point3Dbl GetCoordinates(String systemName)
        {
            Point3Dbl retValue = new Point3Dbl();;
            String sqlString;
            DataTable data = new DataTable();

            try
            {
                sqlString = "select x, y, z from tbSystems where SystemName = " + DBConnector.SQLAEscape(systemName);

                Program.DBCon.Execute(sqlString, data);

                if(data.Rows.Count > 0)
                {
                    retValue.X = ((data.Rows[0]["x"] == DBNull.Value) ? null : (double?)data.Rows[0]["x"]);
                    retValue.Y = ((data.Rows[0]["y"] == DBNull.Value) ? null : (double?)data.Rows[0]["y"]);
                    retValue.Z = ((data.Rows[0]["z"] == DBNull.Value) ? null : (double?)data.Rows[0]["z"]);
                }

                return retValue;
            }
            catch (Exception ex)
            {
                throw new Exception("Error while retrieving system coordinates from database", ex);
            }
        }