While I haven't tested this in detail, it would seem to me that your usage of while (<T>) in load_tbls is clobbering $_, which is aliased to an entry in @database. Thus, when the while loop exits, $_ is undefined (the exit condition).

In reply to Re: use of $_ is destroying @database ... why? by premchai21
in thread use of $_ is destroying @database ... why? by princepawn

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