Answering the question as expressed ("through reference"):

The only possibility to make %chapter act as a proxy for %book is using hash ties.

I won't go into details since this is certainly a XY problem!

Most probably you just need to copy

%chapter=(%chapter,%book)

Cheers Rolf

( addicted to the Perl Programming Language)

In reply to Re: How can I populate attributes of a hash into another ? by LanX
in thread How can I populate attributes of a hash into another ? by ravi06

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