Two Queries Depending On Each Other While Populating A Table?

I have 2 queries. One is populating a dataset that populates the dropdownlist and the other populates rest of the textboxes of a table row. i want to know how can i fill the entire dropdownlist and then make selectedvalue the value from the other query? e.g -

dataset query = select hobby from hobbies
other query - select name, dob, address, hobby from employee

now the table looks like this -

Name DOB Address Hobby
Sam 01/10/1988 111 main st Dropdownlist(n number of records)

Now in the dropdownlist I want all the hobbies populated with the hobby in the employee table to be the selected value.