I'm having trouble getting a routine SQL query working against a CSV file using DBD::CSV. The file on the filesystem is /root/export.csv This proof of concept code doesn't throw any errors. It just doesn't display any rows. There's no output when I run the script. 
#!/usr/bin/perl

use strict;
use warnings;
use DBI;
use Data::Dumper qw(Dumper);

my $sql_query = "SELECT * FROM export";

my $dbh = DBI->connect ("dbi:CSV:f_dir:/root", undef, undef, {
    f_ext      => ".csv",
    RaiseError => 1,
}
);

my $sth = $dbh->prepare($sql_query);
$sth->execute();
 
while (my $ref = $sth->fetchrow_hashref()) {
   print "Found a row: id = $ref->{'id'}, name = $ref->{'service_name'
+}\n";
} 

print "\$sth->err: " . ($sth->err || "");
print("\n");

$sth->finish();

[download]
Any ideas why this code is not outputting my CSV file's contents.

In reply to Trouble getting DBD::CSV to work by paulski82

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