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  1. or download this
    my $results = $dbh->selectall_arrayref(
   "SELECT * FROM shop_items", { Slice => {} }
...
{
   # blah
}
  2. or download this
    sub fetch_data
{
...
       "SELECT * FROM shop_items", { Slice => {} }
    );
}
  3. or download this
    foreach my $hash_ref (@{&fetch_data($dbh)})
{
    # blah
}