Task|Goal @toDo:

• get connection information from user input
• connect DB
• check DB table
  • clear table if non-empty
• populate table|insert nItemsTotal items into it
• store table to|as XML file
• read and modify stored file using XSLT
  • save modified data in a separate file
• read attributes from last file
• output attributes sum (aggregate by field)
  to a console as a (final) result

Restrictions:

(overall) running time
for rows|items total <= pow( 10, 6 ) must be|expected to be <=|less then 5 minutes