Question

WORKS ON COMMAND LINE AND NOT FROM THE WEB

Asked by: micro_learner

Hi I am new to perl CGI as you might guess with my question ...

I have a simeple CGI script that makes a Database connection and retreves the records.
When I run the script from the command line ..the html generated from the command Line works just fine,
But when I access it from the web ..the html before the actual CGI starts works but does not display the html after CGI part in the script.Am I missing something



The HTML that is visble up to
print "<font color=blue><i>Connection is being set";

after that it just does not show anything ...........

###############################################################

#!/usr/local/bin/perl -w

#
use DBI;



my $ora_host="########";
my $ora_sid="$$$";
my $ora_driver="Oracle";
my $ora_username="admin";
my $ora_password="$$$$$";
my $ora_port=1521;
my $dsn_ora="dbi:$ora_driver:host=$ora_host;sid=$ora_sid;port=$ora_port";



print "Content-type: text/html\n\n";

print "<html><head><title>$$$$$$$$$$$$</head>\n\n";

print "<body link=darkgreen vlink=brown>\n";
print "<br><font size=+3 color=red>\n";
print "<center>^^^^^^^^^^^^^</font><br><br><br>\n";


#initialization

$weekday=""; $isdaylight=""; $yearday="";

($sec, $min, $hr, $day, $mon, $yr, $weekday, $yearday, $isdaylight)=localtime(time);

$mon++; $yr += 1900;

print "<font color=blue><i>You filed this query on $day/0$mon/$yr at
$hr:$hr:$min:$sec \n ";
print "<i></font></center>\n";

print "<hr><br>";

print "<font color=blue><i>Connection is being set";         $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
                                                             PRINTS TILL HERE ON THE WEB PAGE

my $dbh=DBI->connect($dsn_ora,$ora_username,$ora_password)
    or die "Error : $DBI::errstr\n";

if($DBI::err){
    print "problem here \n";
}
print "<font color=blue><i>The Connection is set";



my $sth=$dbh->prepare("select * from user_profile");

$sth->execute() or die "$DBI::errstr \n";


#get data from database

#format for display

print "<center>\n";
print "<table border=1>\n";
print "<TR bgcolor=0000aa>";
print "<TD><font color=yellow><b>First Name</b></font></TD>";

print "<TR>\n";

while(($first)=$sth->fetchrow()){

print "<TR><TD>This si the $first</TD></TR>";
}

#print "$DBI::rows rows affected !\n";

$sth->finish();

$dbh->disconnect();

print "\n</table>";
print "</center>";


print "<br><br><br><hr><br><br>\n";
print "<font color=red><i>Last update by ";
print "\n</body></html>\n"
####################################################################################

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Asked On
2005-05-24 at 12:52:28ID21435341
Tags

error

Topic

CGI Scripting

Participating Experts
3
Points
500
Comments
15

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Answers

 

by: ozoPosted on 2005-05-24 at 18:09:42ID: 14073990

use CGI::Carp qw(fatalsToBrowser);
should let you see the die error.  That may help you diagnose the problem.

 

by: PeeweePosted on 2005-05-25 at 02:18:41ID: 14075663

Hi micro_learner,
it seems to point to your db connection statement. Check your web server logs, this will also contain any errors found.

may i suggest aswell, you get into the habit of use strict variables, this will help you out a lot in the long run, ie

use DBI;
use strict;

One thing in your post i find strange is that you say 'the html before the actual CGI starts works but does not display the html after CGI part in the script', presumably here you mean the DBI and not CGI, as the whole perl script is considered to be CGI.


hope this helps
Peewee

 

by: micro_learnerPosted on 2005-05-25 at 07:00:24ID: 14077370

Hi Thanks for your help ...


I get this on the browser ...

Software error:
Error : ERROR OCIEnvNlsCreate (check ORACLE_HOME and NLS settings etc.)


But what I dont understand is that this works absolutely fine on the command Line

 

by: PeeweePosted on 2005-05-25 at 07:21:22ID: 14077604

ok, this is realtively simple now...

check what the  $ORACLE_HOME  is over the command line, ie
echo $ORACLE_HOME

add use this value within your perl script add the line:

$ENV{ORACLE_HOME}  = "";

 

by: PeeweePosted on 2005-05-25 at 07:35:17ID: 14077776

it basically comes down to the fact that apache doesn't inherit your shell variables, either store them in your perl script, have a config file, or place them in your apache configuration..

 

by: PeeweePosted on 2005-05-26 at 02:22:51ID: 14084252

micro_learner,
how'd did u get on? did that fix things?

 

by: ahoffmannPosted on 2005-05-30 at 01:20:23ID: 14107059

as said above, check in your shell:
  echo $ORACLE_HOME
  echo $NLS_LANG   # probably some more ..

then set the values at beginning of your script like:

  $ENV{'ORACLE_HOME'} = "your value here ";
  $ENV{'NLS_LANG'} = "your value here";

 

by: ahoffmannPosted on 2005-06-26 at 01:36:07ID: 14303024

I still believe in my suggestion

 

by: PeeweePosted on 2005-06-28 at 05:07:57ID: 14317253

TheLearnedOne,
setting his enviornment variable orcale home within his perl script was his problem, which i identified first..

 

by: PeeweePosted on 2005-06-28 at 05:22:16ID: 14317373

should be points to me..

 

by: ahoffmannPosted on 2005-06-28 at 07:01:53ID: 14318309

Peewee agreed, but ORACLE_HOME is just half the solution, NLS_* the rest
I'd vote for a split.

 

by: PeeweePosted on 2005-06-28 at 08:15:24ID: 14319253

Hi ahoffmann,
we both arrived at the same solution, the correct one.  I will be happy to share the points with you.. :)

Regards Peewee

20120131-EE-VQP-002

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