Convert Sql database value to xml file format in sql query

Dear Friend,

I am new for convert sql database column value to xml file format. I have receipt table for student in my web application. In that table I have following column name as,

1. Invoice number
2. Date
3. Payment mode
4. Amount

How i can create xml file for that table. select query result same as xml file format. How i can convert sql select query result to xml file Format.

Please any one gives me solution for me.

Thanks in advance.