java jdbc accessing multiple resultsets

Question

I have the following structure:

List -->List_Participant -->Participant

so a list may contain several participants.I try to read this in java:

Answer 1

Here is the reason why you can't have two ResultSet opened from the same Statement

ResultSet javadoc :

A ResultSet object is automatically closed when the Statement object that generated it is closed, re-executed, or used to retrieve the next result from a sequence of multiple results.

So basicly, a Statement can only give you one ResultSet at a time, so you loose the first result when you execute the second query.

Solution :

• Using one instance of Statement per ResultSet needed.
• merging the queries to only have one