This line: 
$sth->bind_param( $i++, $holidays->{$name}->{$_} ) foreach keys %{$hol
+idays->{$name}};

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Will cause transposing (e.g. '20050101' to be stored as 'name') of the key/values in the insert, because you can't rely on the order that keys() returns.
Unforunately needs to be something like: 
$sth->bind_param( $i++, $holidays->{$name}->{$_} ) foreach qw/ name da
+te type federal active /;

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Or, even better, would be to use SQL::Abstract (disadvantage is that it can't be prepare'd): 
 use SQL::Abstract;
 my $sql = SQL::Abstract->new;
 while( my ($name,$data) = each %holidays ) {
   my %data = ( %$data, name => $name );  # assuming hash only has key
+s corresponding to cols in table
   my($stmt, @bind) = $sql->insert('your_table_name', \%data);
   $dbh->do($stmt, {}, @bind);
 }

[download]

In reply to Re^2: Using a multi-level hash in an insert statement... by davidrw
in thread Using a multi-level hash in an insert statement... by sigzero

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