[ale] multiple query in DBD::mysql
Geoffrey
esoteric at 3times25.net
Fri Jul 18 08:59:18 EDT 2003
You didn't bind your vars. Further, from 'Programming the Perl DBI':
'Because of the extra work fetch_hashref and Perl have to perform, this
attribute is not as efficient as fetchrow_arrayref or fetchrow_array'
Christopher Fowler wrote:
>
> I'm trying to grab data from two tables and print
> it out. I'm generating a report.
>
>
> 22 # Now retrieve data from the table.
> 23 my $sth = $dbh->prepare("SELECT * FROM mantis_bug_table");
> 24 $sth->execute();
> 25 print "Number Status Summary\r\n";
> 26 print "------- ------ -------------------------------------------------------\r\n";
> 27 while (my $ref = $sth->fetchrow_hashref()) {
> 28 my $status;
> 29 if($ref->{status} == 10 ) {
> 30 $status = "new";
> 31 } elsif ($ref->{status} == 20 ) {
> 32 $status = "feedback";
> 33 } elsif ($ref->{status} == 30 ) {
> 34 $status = "acknowledged";
> 35 } elsif ($ref->{status} == 40) {
> 36 $status = "confirmed";
> 37 } elsif ($ref->{status} == 50) {
> 38 $status = "assigned";
> 39 } elsif ($ref->{status} == 80 ) {
> 40 $status = "resolved";
> 41 } elsif ($ref->{status} == 90) {
> 42 $status = "closed";
> 43 }
> 44
> 45 my $dQuery = "SELECT * from mantis_bug_text_table where id like $ref->{id}";
> 46 my $desc = $dbh->prepare($dQuery);
> 47 $desc->execute();
> 48
> 49 printf("%-7s %-12s %-50s\r\n", $ref->{id}, $status, $ref->{summary});
> 50 while (my $r2 = $sth->fetchrow_hashref()) {
> 51 printf("$r2->{description}\r\n");
> 52 }
> 53 }
> 54 $sth->finish();
>
>
> Error:
> DBD::mysql::st fetchrow_hashref failed: fetch() without execute() at ./list.pl line 27.
> DBD::mysql::st fetchrow_hashref failed: fetch() without execute() at ./list.pl line 27.
>
> What is the best way to do this?
>
> Thanks,
> Chris
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://www.ale.org/mailman/listinfo/ale
>
>
--
Until later: Geoffrey esoteric at 3times25.net
The latest, most widespread virus? Microsoft end user agreement.
Think about it...
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