You should write a script (for example, in ASP) forming the xml file. Make all needed SQL queries for selecting data and put them to the xml file.

Source of simple xml file:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<Project>
 <Data>
  <ColCount>3</ColCount>
  <RowCount>11</RowCount>
  <Item0>|min1|min2|min3|min4|min5|min6|min7|min8|min9|min10</Item0>
  <Item1>HELLO|12.05|14.28|16.23|17.48|17.66|16.51|10|10.00|8.87|6.74</Item1>
  <Item2>HELLO|-10.60|-10.09|-8.45|-5.82|-2.51|1.08|-10|-7.85|-5.86|-4.45</Item2>
 </Data>
</Project>