Multiple Methods Which Differs Only By Return Value

I have a class, which communicates with database via SQL queries. But one queries don't produce any ResultSet, while other queries do. Now I'm facing situation, where I have two methods, one which executes queries with return values and other which executes queries without return values:

public ResultSet executeQueryWithReturn(String query){
try{
return executeWithReturn(query);
}catch(Exception e){
e.printStackTrace();

[Code] .....

But I see few problems here: 1) Method can return null, (I read in book Clean Code, that people should avoid return null) Another issue - boolean value breaks the rule that method should do only one thing.

Maybe there is a better option? or maybe I should forget these two issues here for readability?