Jorge said:

> 1)  b = ResultSetFactory.makeRewindable(b); before the loops
> and 2) ((ResultSetRewindable) b).reset(); each time round the `a` loop.
> Thank you very much Chris!!!

Better would be

    ResultSetRewindable rb = ResultSetFactory.makeRewindable(b);

Then you can use rb instead of b and rb.reset() rather than a (Big)cast.
It's clearer what's going on.

Chris
                                          
-- 
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