On 03/06/15 17:12, Bruce Johnson wrote:

On Jun 3, 2015, at 7:19 AM, William Bulley <w...@umich.edu> wrote:

According to Bruce  Johnson <john...@pharmacy.arizona.edu> on Wed, 06/03/15 at 
10:10:


Make sure your original $query is delimited by double quotes, not single.

I've tried _everything_!!

Single quotes.  Double quotes.  q{} and qq{} (using the latter now).

But no matter what I try DBI complains about the darn question mark!

It is infuriating, I tell you!   :-)

Well, I just tested MY theory (RHEL v6.5, oracle 11.2g,  oracle instant client 
for 11.2,  perl, v5.10.1 (*) built for x86_64-linux-thread-multi) with:

#!/usr/bin/perl
use strict;
use DBI;
my $dbh= DBI->connect(“dbi:Oracle:host=$host", $user, $pass, {RaiseError =>1});

my $qry1 ='select ? from dual';
my $qry2 = "select ? from dual";
my $sth = $dbh->prepare($qry1);
$sth->execute('foo');
my ($res)=$sth->fetchrow();
print "single quote result is $res \n";
$sth =$dbh->prepare($qry2);
$sth->execute('bar');
($res)=$sth->fetchrow();
print "double quote result is $res \n";
exit;

And got:
# ./qmarktest.pl
single quote result is foo
double quote result is bar

So yet another fine theory destroyed by reality…

Possibly some sort of character set mess up? Could your 'question mark' be 
something else in the script? Maybe a 16-bit vs 8-bit character?  I’ve had some 
weird issues in the past when I was handed a 16-bit unicode text file of insert 
statements and tried to run them.


Bruce,

Just so you know, I've already told William off list that question mark should 
not get through to Oracle and so the preparse method in DBD::Oracle is not 
spotting the ? - perhaps because it is not a ? or it thinks it is in a comment, 
literal etc. However, I expect, as you do, that one of the chrs in the SQL is 
not what it seems.

Sorry, as log file was sent to me I answered it and did not cc the list.

Martin

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