function dump_dataBase($filename) {

		$row = array ();
		$row2 = array ();
		$row3 = array ();
		$tb_names = array ();
		$cadException = TransactionBasicService :: openTransaction($transaction);
		$sql = "SHOW TABLES";
		$cadException = TransactionBasicService :: runArraySelect($sql, $transaction, $row);
		$i = 0;
		$workbook = & new Workbook($filename);
		$text_format = & $workbook->addformat(array ('align' => 'justify', 'border' => 4, 'border_color' => 'gray', 'bottom' => 4, 'valign' => 'vjustify', 'color' => 'black', 'size' => 10, 'font' => 'Times New Roman'));
		
		foreach ($row as $row2) {
			$tb_names[$i] = $row2[0];
			$worksheet = & $workbook->addworksheet($tb_names[$i]);
			$heading = & $workbook->addformat(array ('bold' => 1, 'color' => 'red', 'size' => 18, 'align' => 'center', 'valign' => 'center', 'font' => 'Times New Roman'));
			$worksheet->write(1, 4, $tb_names[$i], $heading);
			$worksheet->merge_cells('1', '4', '2', '12');

			//Write fields names into Excel sheet
			$text_format = & $workbook->addformat(array ('color' => 'blue', 'border' => 4, 'border_color' => 'gray', 'bottom' => 4, 'pattern' => 1, 'fg_color' => 'cyan', 'align' => 'center', 'valign' => 'center', 'size' => 12, 'font' => 'Times New Roman'));
			$sql2 = "DESC ".$tb_names[$i]." ;";
			$row3 = array();
			$cadException = TransactionBasicService :: runArraySelect($sql2, $transaction, $row3);
			$j = 2;
			//$array_size = mysql_num_rows($row3);
			for ($l=0; $l < count($row3); $l++) {
				$name_field = $row3[$l][0];
				$worksheet->write(4, $j , $name_field, $text_format);
				$j++;
			}

			//Write fields data into Excel sheet
			
			$sql3 = "SELECT * FROM ".$tb_names[$i];
			$row5 = array ();
			$cadException = TransactionBasicService :: runArraySelect($sql3, $transaction, $row5);
			$array_size1 = count($row5);
			//var_dump ($array_size1);
			$j = 5;
			$text_format = & $workbook->addformat(array ('color' => 'blue', 'border' => 4, 'border_color' => 'gray', 'bottom' => 4, 'align' => 'center', 'valign' => 'center', 'size' => 12, 'font' => 'Times New Roman'));
			for ($i=0;$i<$array_size1;$i++) {
				$k = 0;
				foreach ($row5[$i] as $row6) {
					$worksheet->write_string($j, $k+2, $row6, $text_format);
					$k++;
				} 
				$j++;
			}
			/*
			$sql3 = "SELECT * FROM ".$tb_names[$i];
			$row5 = array ();
			$cadException = TransactionBasicService :: runArraySelect($sql3, $transaction, $row5);
			$j = 5;
			//$array_size1 = count($row5);
		    $k=0;
			foreach ($row5 as $row6){
				$array_size1 = count($row6);
				//for($l=0;$l<$array_size1;$l++){
			    //for($k=0;$k<$array_size1;$k++){
			    $worksheet->write_string($j, $k+2, $row6[$k] ,$text_format);
			    //}
			    /*$k = 0;
				$nb_field = count($row5[$l])/2;
				while ($k < $nb_field) {
					$worksheet->write_string($j, $k+2, $row5[$l][$k] ,$text_format);
					$k++;
				}
				//}
				$k++;
				$j++;
			}*/
			
			$i++;
		}
		$workbook->close();
	}