Hi, i have tried this also. Not working. 
#! /usr/bin/perl

use DBI;
use strict;

my $dbh = DBI->connect("DBI:DB2:URTDB",'db2inst1','db2inst7',{ RaiseEr
+ror => 0, AutoCommit => 1 })
or die ("Could not connect to database :".DBI->errstr);

my $sql = "SELECT distinct FID_CUST FROM session WHERE YEAR(DAT_END) =
+ ? AND MONTH(DAT_END) = ?";
=head
my %hash =
(
'2017-01-01 00:00:00' => '2017-01-31 00:00:00',
'2017-02-01 00:00:00' => '2017-02-28 00:00:00',
'2017-03-01 00:00:00' => '2017-03-31 00:00:00',
'2017-04-01 00:00:00' => '2017-04-30 00:00:00',
'2017-05-01 00:00:00' => '2017-05-31 00:00:00',
'2017-06-01 00:00:00' => '2017-06-30 00:00:00',
'2017-07-01 00:00:00' => '2017-07-31 00:00:00',
'2017-08-01 00:00:00' => '2017-08-31 00:00:00',
'2017-09-01 00:00:00' => '2017-09-30 00:00:00'
);
=cut

#open(my $fh , "+>/var/www/bin/filesample.txt");

my $sth = $dbh->prepare($sql);
my $year = 2017;
foreach my $month(1..9) {
print "$year-$month\n";
$sth->execute($year,$month) or die $DBI::errstr;
while (my $fid_cust= $sth->fetchrow_arrayref())
{
print "in while\n";
print "@$fid_cust\n";
        }
$sth->finish();
}
#close FH;
$dbh->disconnect;

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In reply to Re^2: Code flow not going to while loop by dipit
in thread Code flow not going to while loop by dipit

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