Suppose a hash ref exists like this: 
$hash->{Grand}->{Parent1}->{Child1}->{name};
$hash->{Grand}->{Parent1}->{Child1}->{age};
$hash->{Grand}->{Parent1}->{Child2}->{name};
$hash->{Grand}->{Parent1}->{Child2}->{age};
$hash->{Grand}->{Parent1}->{Child3}->{name};
$hash->{Grand}->{Parent1}->{Child3}->{age};
$hash->{Grand}->{Parent2}->{Child1}->{name};
$hash->{Grand}->{Parent2}->{Child1}->{age};
$hash->{Grand}->{Parent2}->{Child2}->{name};
...

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I need to loop through "Grand" and get the number of Parents; and for each Parent, get number of Children; and for each children, print their names and ages.
How do I do this?
The actual rows have further more levels. The key importance here is perfomance.


Thanks,
Rupesh.

In reply to Hash Ref: Need to find out how many children I have :-) by rupesh

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