my $query = qq|SELECT e.$fld FROM exchangerate e
WHERE e.curr = ? AND e.transdate = ?|;
my ($exchangerate) = selectrow_query($self, $dbh, $query, $currency, $transdate);
my $query = qq|SELECT e.$fld FROM exchangerate e
WHERE e.curr = ? AND e.transdate = ?|;
my ($exchangerate) = selectrow_query($self, $dbh, $query, $currency, $transdate);