The $dbh->prepare is in a loop, with the same statement and handle attributes. You only need to prepare it once: 

my $sth2 = $dbh->prepare_cached("select d_id, c_id from d
           where d_id = ?");
$sth2->execute( $did2 );



# And since you need less clutter on the monitor


(my $sth2 = $dbh->prepare_cached(<<"")) -> execute ($did2);
            select d_id, c_id from d where d_id = ?

# line above intentionally left blank

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In reply to Re: Feedback Appreciated on text-parsing, SQL querying subroutine by ioannis
in thread Feedback Appreciated on text-parsing, SQL querying subroutine by Angharad

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