Hi, I am having trouble with this: each select statement executed will fetch multiple records with same tax_id(see below) value. I want to catch only single of 'em. some how it not getting in to elsif($count==1) loop. I am unable to figure out why? please let me know, 
my $refseq_list ="/home/bla/bla/refseq.txt";

open(REF,$refseq_list);


my($ref,@ref,$size,$command1);


while($ref=<REF>)
{
push(@ref,$ref);
}

$size = @ref;
print "$size sequences found\n";


my $count=0;
LOOP:foreach $ref(@ref)

{
 print "in foreach loop\n";
  $count=0;
  $command1 = qq{select tax_id from gene2acc where genomic_ac_ver= '$r
+ef'; };
 
   $sth1=$dbh->prepare($command1);
              $sth1->execute() or die $sth1->errstr;
              my($tax_id);
              $sth1->bind_columns(undef,\$tax_id );

              while($array=$sth1->fetchrow_array())
              {
              $count++;
                
             if($sth1->rows == 0)
               {
                print "No records matched for $ref\nn";
               }
                elsif($count==1)
               {
                $t=$array;
                print "Entering taxID_format with $t\n";

                #&taxID_format($t);
               }
               
               
            }

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In reply to dbi retieve single col value by Anonymous Monk

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