I'm glad that my "code" made you laugh. To post a code written by a newbie and expect that none will laugh is too naive even for a child, so it's ok, anyway thanks for advices.
About: writing to /tmp...
I made it for debugging purposes. Sure it may be unneeded but at this point I'm using things I'm familiar with.
About:\"\"\"\" is PAINFUL, use qq{""""}
Thx, I'll use it.
About: fetchrow_hashref docs warn you about storing the reference but you store it anyway -- your data is all duplicates -- might as well fetchall instead Tutorials->Database Programming->DBI recipes
Thanks for a clue, I will read about it
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