my $query = $dbh->prepare('SHOW TABLES'); if (defined($query)) { $query->execute(); my @row; while (@row = $query->fetchrow_array()) { $sql = qq|delete from $row[0]|; $sth = $dbh->prepare($sql) or die "Cannot prepare: " . $dbh->errstr(); $sth->execute() or die "" . $sth->errstr();