kate212
New User
Aug 28, 2013, 6:13 PM
Post #1 of 3
(493 views)
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 Select return different value
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Hi There,
I am a beginner in perl, working in a simple project. I did some code to connect a database and export the data to a CSV file, however, it was working fine but now when exporting the data the first column (for example "Person_ID") list in a sequence number (1 2 3 ...) instead of the original values (10 12 21 ...) then the rest of the columns are fine.
This is my code:
#!/usr/bin/perl
use strict;
use warnings;
use DBI;
my $driver = "mysql";
my $database = "database";
my $user = "user";
my $password = "password";
my $dbh = DBI->connect(
"DBI:$driver:$database",
$user, $password,
{
RaiseError => 1,
PrintError => 1,
}
) or die $DBI::errstr;
#Simple select for the table
my $sth = $dbh->prepare("SELECT * FROM persona") or die $dbh->errstr;
open my $fh, '>', 'Output.csv' or die "Could not open file Output.csv: $!";
print $fh qq{Person_ID,Person_name\n};
$sth->execute() or die $dbh->errstr;
#
# Output the results
#
print "Person_ID \t Person_name\t\n";
while (my $results = $sth->fetchrow_hashref) {
# print $results->{Person_ID}." \t". $results->{Person_name}."\t";
#print "\n";
print $fh qq{$results->{'Person_ID'},$results->{'Person_name'},\n};
}
close $fh;
#
# Disconnect from database
#
$dbh->disconnect;
exit 0;
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