Driver Frustration// Perl DBI

On Fri, Jan 17, 2003 at 04:15:21PM -0600, Cheryl Thompson wrote:

The latest Perl DBI interface I can find on CPAN is dated 1998 and is for
PostGre95.

Is there an up to date Perl DBI for Postgresql? When can I find it? (it's
NOT in CPAN!).

Yes, it is: the DBD::Pg module is in version 1.21:

perl -MCPAN -e shell
install DBD::Pg

should install the latest version for you (presuming you have DBI
installed already).

-- keith
kkeller@speakeasy.net
public key: http://wombat.san-francisco.ca.us/kkeller/kkeller.asc
alt.os.linux.slackware FAQ: http://wombat.san-francisco.ca.us/cgi-bin/fom

On Friday 17 January 2003 02:14 pm, Cheryl Thompson wrote:

I'm working with Postgresql to implement a DB on the Web.
After discovering that Dreamweaver UD 4 does not support Posgres, even
thought I'm running Postgresql through an ODBC, I went on to Perl.

The latest Perl DBI interface I can find on CPAN is dated 1998 and is for
PostGre95.

Is there an up to date Perl DBI for Postgresql? When can I find it? (it's
NOT in CPAN!).

Thanks,
Cheryl

---------------------------(end of broadcast)---------------------------
TIP 4: Don't 'kill -9' the postmaster

Hi Cheryl -

You should use DBI + DBD-Pg-1.12 module like so:

use DBI;
$dbh = DBI->connect("dbi:Pg:dbname=$database",$user,$password);

-- Doug

On Fri, 17 Jan 2003, Cheryl Thompson wrote:

I'm working with Postgresql to implement a DB on the Web.
After discovering that Dreamweaver UD 4 does not support Posgres, even
thought I'm running Postgresql through an ODBC, I went on to Perl.

The latest Perl DBI interface I can find on CPAN is dated 1998 and is for
PostGre95.

Is there an up to date Perl DBI for Postgresql? When can I find it? (it's
NOT in CPAN!).

I'm running the "unstable" version of Debian Linux, and got
the DBD::Pg as a package from Debian. It says that DBD::Pg is
version 1.13, and can be gotten from dbi.symbolstone.org.
For the DBI package, the version number is 1.30. The home seems
to be dbi.perl.org. Those 2 versions, should be pretty close
to the newest available.

Gord
--
Matter Realisations http://www.materialisations.com/
Gordon Haverland, B.Sc. M.Eng. President
101 9504 182 St. NW Edmonton, AB, CA T5T 3A7
780/481-8019 ghaverla @ freenet.edmonton.ab.ca
780/993-1274 (alt.)

Hello,

On Friday 17 January 2003 22:15, Cheryl Thompson wrote:

The latest Perl DBI interface I can find on CPAN is dated 1998 and is for
PostGre95.

Is there an up to date Perl DBI for Postgresql? When can I find it? (it's
NOT in CPAN!).

Try:

http://www.cpan.org/modules/by-category/07_Database_Interfaces/Pg/

I only know this because its called DBI:Pg or something on the SuSE GUI
installer :o)

regards, Ben.

Cheryl,

I'm working with Postgresql to implement a DB on the Web.
After discovering that Dreamweaver UD 4 does not support Posgres, even
thought I'm running Postgresql through an ODBC, I went on to Perl.

The latest Perl DBI interface I can find on CPAN is dated 1998 and is for
PostGre95.

Is there an up to date Perl DBI for Postgresql? When can I find it? (it's
NOT in CPAN!).

The reccommended module for Postgres is DBD::Pg, although the outdated DBI
module will work for simple queries (as I have used it extensively for simple
data transfers).

I'm not sure what the status of the DBD::Pg driver is; here's the project:
http://gborg.postgresql.org/project/dbdpg/projdisplay.php

--
-Josh Berkus
Aglio Database Solutions
San Francisco

Hi

Where can I find the list of the functions of pg module, for example how
to insert a row to the database?
Does anybody know a tutorial on perl & Postgres?

Thanks
Rosta

************************************
Rosta Farzan
Laboratory for Adaptive Hypermedia and Assistive Technologies
Department of Math and Computer Science CSU Hayward
rosta@acc.csuhayward.edu
(510) 885-4026
*************************************

Have a read of the documentation for the DBI and DBD::Pg modules.

perldoc DBI
perldoc DBD::Pg

Through then you can do your insert staments / any other sql statements
that you like.

simran.

Rosta Farzan wrote:

Hi

Where can I find the list of the functions of pg module, for example how
to insert a row to the database?
Does anybody know a tutorial on perl & Postgres?

Thanks
Rosta

I have seen some examples. I believe they came with the Pg module.

I attach some GPL code which was intended for Mysql. My hack is
probably a good example of how _not_ to interface to Postgres,
but you will need something to start with. The original article
should be still on the DrDobbs site somewhere. (try Aug 2002)

HTH

Richard A Lough

On Wed, Jan 29, 2003 at 06:36:10PM +0000, Richard A Lough wrote:

Rosta Farzan wrote:

Hi

Where can I find the list of the functions of pg module, for example how
to insert a row to the database?
Does anybody know a tutorial on perl & Postgres?

http://www.uklinux.net/support/DBI.php
http://www.uklinux.net/support/DBD_Pg.php

m.

Also try this

perldoc DBI
perldoc DBD::Pg

Perl provides a two tier DB interface. Programmers use DBI as a generic
DB API.
DBI connects with DBD (DB Driver) to reach the engine.

So if you use Postgresql, then programmer --> DBI ---> DBD ---> Pg
If you use Oracle, then programmer ---> DBI ---> DBD --> Oracle
if you use ODBC, then programmer ---> DBI --> DBD --> ODBC <=========>
SomeEngine

Is'nt that cool....

Michael Carmack wrote:

Le Wed, Jan 29, 2003 at 03:15:46PM +1100, simran a écrit ...

Have a read of the documentation for the DBI and DBD::Pg modules.

perldoc DBI
perldoc DBD::Pg

desmond@lievre.voute.net % perldoc -f dbi
No documentation for perl function `dbi' found

:-(

D.

--
Desmond Coughlan |'Io non mori, e non rimasi vivo'
desmond@zeouane.org
http://www.zeouane.org

On Thu, Jan 30, 2003 at 06:04:09AM +0000, Desmond Coughlan wrote:

Le Wed, Jan 29, 2003 at 03:15:46PM +1100, simran a ?crit ...

Have a read of the documentation for the DBI and DBD::Pg modules.

perldoc DBI
perldoc DBD::Pg

desmond@lievre.voute.net % perldoc -f dbi
No documentation for perl function `dbi' found

That's not what the previous poster said to do.

% perldoc DBI
% perldoc DBD::Pg

If there's still no docs, the modules aren't installed.

--keith

--
kkeller@speakeasy.net
public key: http://wombat.san-francisco.ca.us/kkeller/kkeller.asc
alt.os.linux.slackware FAQ: http://wombat.san-francisco.ca.us/cgi-bin/fom

You can find the same document online
http://search.cpan.org/

Look for DBD::Pg or DBI

--Rosta

Le Wed, Jan 29, 2003 at 03:15:46PM +1100, simran a �crit ...

Have a read of the documentation for the DBI and DBD::Pg modules.

perldoc DBI
perldoc DBD::Pg

desmond@lievre.voute.net % perldoc -f dbi
No documentation for perl function `dbi' found

:-(

D.

--
Desmond Coughlan |'Io non mori, e non rimasi vivo'
desmond@zeouane.org
http://www.zeouane.org

************************************
Rosta Farzan
Laboratory for Adaptive Hypermedia and Assistive Technologies
Department of Math and Computer Science CSU Hayward
rosta@acc.csuhayward.edu
(510) 885-4026
*************************************

DOS / WINDOWS:

V:\perl\bin> perldoc pg.pm > pgdoc.txt

-- Then read the text file...

Unix:

/usr/bin/perl/perldoc pg.pm > pddoc.txt

Then there's always the CPAN web site Pg module documentation: (I know it
look bad but this link works...)

http://ls6-www.cs.uni-dortmund.de/cgi-bin/SFgate?language=English&amp;verbose=1&amp;
listenv=DL&application=cpan&convert=CPAN&converthl=&refinequery=application%
3dcpan%26convert%3dCPAN%26database%3dwait%252FDB%252Fcpan%26detex%3d1%26form
extern%3dCPAN%26multiple%3d1%26range%3d1%26verbose%3d1%26name%3dPg.pm%26syno
psis%3d%26text%3d%26author%3d%26tie%3dor%26_lines%3dwhole%2bdocument%26maxhi
ts%3d40%26language%3dEnglish&formintern=&formextern=CPAN&transquery=name%3dp
g.pm&_lines=&multiple=0&descriptor=wait%2fDB%2fcpan%7c1000%7c18068%7cDBD::Pg
%20-%20PostgreSQL%20database%20driver%20for%20the%20DBI%20module%20%7cCPAN%7
cwait%7c%2fservices%2fwww-db%2fWAIT%2fDB%2fcpan%7c301

OR http://www.cpan.org

"Richard A Lough" <ralough.ced@dnet.co.uk> wrote in message
news:3E381F1A.2FC108E9@dnet.co.uk...

This is a multi-part message in MIME format.
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Content-Type: text/plain; charset=us-ascii
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Rosta Farzan wrote:

Hi

Where can I find the list of the functions of pg module, for example how
to insert a row to the database?
Does anybody know a tutorial on perl & Postgres?

Thanks
Rosta

I have seen some examples. I believe they came with the Pg module.

I attach some GPL code which was intended for Mysql. My hack is
probably a good example of how _not_ to interface to Postgres,
but you will need something to start with. The original article
should be still on the DrDobbs site somewhere. (try Aug 2002)

HTH

Richard A Lough
--------------C73B285B6B29F4468FCAF0DE
Content-Type: application/x-perl;
name="spider.pl"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
filename="spider.pl"

#!/usr/bin/perl -w
#*-------------------------------------------------------------------
#*- spider.pl:
#*- Author: Manu Konchady
#*- License: GPL
#*- Input: A query
#*- Output: A list of the hubs and authorities for the query
#*- Module Dependencies: HTML::Parser 3.0, LWP::UserAgent,
#*- URI::URL, HTTP::Request, DBI and Posix.
#*-
#*- Description: We assume that two tables have been created for this
#*- particular query to store URLs and associated links
#*- prior to the execution of the spider. An entry has also
#*- been made in a queries table for this query.
#*-
#*- An initial collection of URLs are stored in the URL table
#*- for the query followed by a parallel execution of spiders
#*- to selectively generate the web tree for the query.
#*- After all spiders have terminated, the hubs and authorities
#*- for the query are listed. The list of all URLs sorted by
#*- relevancy can also be viewed.
#*-
#*- Notes: This code is a sample and should be modified as
#*- needed. For example, relevancy can be computed using several
#*- options as described in the article. Links can be pruned or
#*- followed depending on user criteria. Priorities can be
#*- set for certain domains. Entity tables can be used to track
#*- entities across web pages.
#*-
#*- RAL hacked to do postgres instead of MySQL
#*- tables are utab, queries, ltab
#*- ( url varchar(120), status varchar(10), site varchar(120), relevancy

float4, level int4, spider int4)

#*- ( query varchar(250), qword varchar(250), url_limit int4, url_count

int4, status varchar(10))

#*- the "query" is the text to match, the qword is a name for reference

and

#*- which was used to set the tables up
#*- ( url varchar(250), link varchar(250))
#*-------------------------------------------------------------------

use POSIX ":sys_wait_h";
use PgDBI;
use MyWeb;
use strict;

my $dbname = 'querynet1';
my ($i, @pid, $done, $num_spiders, $kid, $query, %urls, $count);
my ($qword, $utab, $ltab, $dbh, $sth, $command, $url_limit, $url);

#*-- The first argument is a table prefix associated with the query.
#*-- It is used to assign the url and link tables for the query.
#*-- The database name for the db connection must be entered.
$qword = $ARGV[0];
$utab = "$qword" . "_u"; $ltab = "$qword" . "_l";
$dbh = PgDBI::connect_db("dbname=$dbname");

#*-- get the full query and maximum number of urls for the query
$command = "select query, url_limit from queries where qword = '$qword'";
$sth = PgDBI::execute_stmt($dbh, $command);
($query, $url_limit) = PgDBI::fetch_row($sth);

#*-- get an initial set of urls from Google for the query
&call_google();
#*-- close the database in ccase google has crashed it

PgDBI::disconnect_db($dbh, $sth);

#*-- start the parallel operation with 4 spiders, this
#*-- works on Linux. On a Windows platform, you may need
#*-- to use the Win32 module to start individual processes
#$num_spiders = 1;
$num_spiders = 4;
for $i (1..$num_spiders)
{
if ($pid[$i] = fork()) #*-- the parent code continues
{ next; }
else #*-- the child code continues
{ defined($pid[$i]) or die "fork: $!"; &fetch_text($i); }
}
####################################################################
#*-- wait till all the spiders are complete. Every two seconds,
#*-- check the status of the spiders
$done = 0;
while (!($done))
{
for $i (1..$num_spiders)
{
next if ($pid[$i] == 0);
$kid = waitpid($pid[$i], &WNOHANG);
$pid[$i] = 0 if ($kid == -1);
}
$done = 1;
for $i (1..$num_spiders) { $done = 0 if ($pid[$i] != 0); }
sleep(2);
}

#*-- clean up after the spiders, find all URLs which were
#*-- not processed and delete them from the link table

$dbh = PgDBI::connect_db("dbname=$dbname");
$command = "select url from $utab where status != 'd'";
$sth = PgDBI::execute_stmt($dbh, $command);
while ( ($url) = PgDBI::fetch_row($sth) ) { $urls{$url}++; }
foreach $url (keys %urls)
{ $command = "delete from $ltab where url = '$url'";
$sth = PgDBI::execute_stmt($dbh, $command);
}

#*-- delete the unprocessed urls from the url table
$command = "delete from $utab where status != 'd'";
$sth = PgDBI::execute_stmt($dbh, $command);

$command = "update queries set status = 'done' where qword = '$qword'";
$sth = PgDBI::execute_stmt($dbh, $command);

#*-- print the top 10 hubs and authorities
print ("List of top 10 Hubs\n"); $i = 1;
$command = "select count(*), url from $ltab group by url order by 1

desc";

$sth = PgDBI::execute_stmt($dbh, $command);
while ( ($count, $url) = PgDBI::fetch_row($sth) )
{ print ("$i. $url\n"); $i++; last if ($i == 11); }

print ("List of top 10 Authorities\n"); $i = 1;
$command = "select count(*), link from $ltab group by link order by 1

desc";

$sth = PgDBI::execute_stmt($dbh, $command);
while ( ($count, $url) = PgDBI::fetch_row($sth) )
{ print ("$i". "- "." $url\n"); $i++; last if ($i == 11); }

PgDBI::disconnect_db($dbh, $sth);

exit(0);

#*------------------------------------------------------------
#*- Each of the spiders run the following code and then terminate.
#*- An unprocessed URL is selected and traversed. New links
#*- are added to the tables. The spider number is passed
#*- as a parameter
#*------------------------------------------------------------
sub fetch_text()
{

my ($snum) = @_;
my ($dbh, $sth, $done, $command, $count, $links, $ref_text, $usite);
my ($ref_links, $url, $level, $link, %links, $site, $url_temp);

#*-- create a handle for the database
$dbh = PgDBI::connect_db("dbname=$dbname");
$done = 0;
while (!($done))
{
$link = '';
## $command = "lock tables $utab write, queries write"; # no good in

postgres

# $command = "begin work;"; # ral new
# $sth = PgDBI::execute_stmt($dbh, $command);
# $command = "lock table $utab"; # ral new
# $sth = PgDBI::execute_stmt($dbh, $command);
# $command = "lock table queries"; # ral new
# $sth = PgDBI::execute_stmt($dbh, $command);

#*-- check if there are any unprocessed URLs
$command = "select url, level, site from $utab where status = ''"; #

Pg

$sth = PgDBI::execute_stmt($dbh, $command);
($url, $level, $usite) = PgDBI::fetch_row($sth);
$command = "select count(*) from $utab where status = ''"; # Pg
$sth = PgDBI::execute_stmt($dbh, $command);
($count) = PgDBI::fetch_row($sth);

if ($count == 0)
{ $done = 1; next; } # Pg

#*-- update the number of URLs processed in the queries table
$command = "select count(*) from $utab where status = 'd'";
$sth = PgDBI::execute_stmt($dbh, $command);
($count) = PgDBI::fetch_row($sth);
$command = "update queries set url_count = $count where qword =

'$qword'";

$sth = PgDBI::execute_stmt($dbh, $command);
#*-- check if the number of processed URLs exceeds the limit
if ($count > $url_limit)
# { $done = 1; $sth = PgDBI::execute_stmt($dbh, "unlock tables");

next; } # no good in postgres

{ $done = 1;
# $sth = PgDBI::execute_stmt($dbh, "commit work"); #
next; } # Pg

#*-- set the status of the URL and unlock the tables
$url_temp = $url;
$url =~ s/'/\\'/g; $url =~ s/\$/\\\$/;
$command = "update $utab set status = 'v' where url = '$url'";
$sth = PgDBI::execute_stmt($dbh, $command);

#*-- if this is an irrelevant URL, then remove it
$url = $url_temp;
($ref_text, $ref_links) = MyWeb::parse_URL($url);
if (!(&match($$ref_text, $query) ) )
{
$command = "delete from $utab where url = '$url'";
$sth = PgDBI::execute_stmt($dbh, $command);
if ($link eq '') { next; } else {
$command = "delete from $ltab where url = '$url'";
$sth = PgDBI::execute_stmt($dbh, $command);
next;}
}

#*-- add all links for this relevant URL to $ltab
$level++; %links = %$ref_links;
foreach $link (keys %links)
{

($site = $link) =~ s#/.*$##i;
#*-- skip links to ads and other formatted documents
next if ($link =~ /doubleclick/i);
next if ($link =~ /affiliates\./i);
next if ($link =~ /\.(jpg|gif|pdf|ps|doc|xls|ppt|mpg|mpeg)$/i);
#*-- skip links to the same site, except when one of the
#*-- query keywords matches the link
next if ( ($site eq $usite) && (!(&match_link($link, $query))) );
$link =~ s/'/\\'/g; $link =~ s/\$/\\\$/;
$link = lc($link);
#*-- check for duplicates
$command = "select count(*) from $utab where url = '$link'";
$sth = PgDBI::execute_stmt($dbh, $command);
($count) = PgDBI::fetch_row($sth);
next if ($count != 0);
#*-- check for too many URLs from the same site
$command = "select count(*) from $utab where site = '$site'";
$sth = PgDBI::execute_stmt($dbh, $command);
($count) = PgDBI::fetch_row($sth);
next if ($count > 200);
#*-- create entries in the link and url tables
$command = "insert into $ltab values ('$url', '$link')";
$sth = PgDBI::execute_stmt($dbh, $command);
$command = "insert into $utab values ('$link', '','$site', 0.0,

$level, $snum)";

$sth = PgDBI::execute_stmt($dbh, $command);

}

#*-- set the status and relevancy of the URL, text from
#*-- the web page can be used to set relevancy values
$command = "update $utab set status = 'd' where url = '$url'";
$sth = PgDBI::execute_stmt($dbh, $command);
$command = "update $utab set relevancy = 0.2 where url = '$url'";
$sth = PgDBI::execute_stmt($dbh, $command);

}
PgDBI::disconnect_db($dbh, $sth);
sleep (3);
exit(0);

}

#*------------------------------------------------------
#*- check if query satisfies the boolean query.
#*------------------------------------------------------
sub match()
{
my ( $text, $query_terms) = @_;
my ($word, @words, $quotes, $retval);

$quotes = '"\'';
#*-- split a query with the AND operator and recursively
#*-- parse the query
if ($query_terms =~ /\bAND\b/i)
{
@words = split(/\bAND\b/i, $query_terms);
foreach $word (@words)
{
if ($word =~ /\((.*?)\)/)
{ $retval = &match($text, $1);
if ($retval == 0) { return(0); } else { next; }
}
$word =~ s/[$quotes]//g; $word =~ s/^\s+//; $word =~ s/\s+$//;
return(0) if ($text !~ /\b$word\b/i);
}
return(1);
}

#*-- split a query with the OR operator and recursively
#*-- parse the query
if ($query_terms =~ /\bOR\b/i)
{
@words = split(/\bOR\b/i, $query_terms);
foreach $word (@words)
{
if ($word =~ /\((.*?)\)/)
{ $retval = &match($text, $1);
if ($retval == 1) { return(1); } else { next; }
}
$word =~ s/[$quotes]//g; $word =~ s/^\s+//; $word =~ s/\s+$//;
return(1) if ($text =~ /\b$word\b/i);
}
return(0);
}

#*-- assume an AND operator for a query with multiple terms
$query_terms =~ s/[$quotes]//g; $query_terms =~ s/^\s+//; $query_terms

=~ s/\s+$//;

$query_terms =~ s/([()])/\\$1/g;
@words = split(/\s+/, $query_terms);
foreach $word (@words)
{ return(0) if ($text !~ /\b$word\b/i); }
return(1);

}

#*------------------------------------------------------
#*- check if any words in the query match the query text
#*------------------------------------------------------
sub match_link()
{
my ($link, $query) = @_;

my (@words, $word, $match);

$match = 0;
@words = split(/\s+/, $query);
foreach $word (@words)
{
next if ( ($word =~ /\bAND\b/i) || ($word =~ /\bOR\b/i) || ($word =~

/\bNOT\b/i) );

$match = 1 if ($link =~ /$word/i);
}

return($match);

}

#*-------------------------------------------
#*- load the initial set of URLs from Google
#*-------------------------------------------
sub call_google()
{

my ($sql, $query, $url_string, $reg, $j, $script, $ref_html);
my ($output, $site, %urls, $url);
my ($count) = 0;

$sth = PgDBI::execute_stmt($dbh, "delete from $utab");
$sth = PgDBI::execute_stmt($dbh, "delete from $ltab");

#*-- get the full query
$sql = "select query from queries where qword = '$qword'";
$sth = PgDBI::execute_stmt($dbh, "$sql");
($query) = PgDBI::fetch_row($sth);

#*-- get urls from Google
$query =~ s/(\W)/sprintf("%%%x", ord($1))/eg;
$url_string =

"http://www.google.com/search?num=100&amp;safe=off&amp;btnG=Google+Search&quot;;

$url_string .= "&q=$query&filter=0&start=";

$reg = '<p><a href=http://(.*?)&gt;&#39;;
undef $/;
for ($j = 0; $j < 46; $j += 50)
{
$script = "$url_string$j";
($ref_html) = MyWeb::get_URL($script);
$output = $$ref_html; #*-- get all the data
while ($output =~ /$reg/sgi)
{ ($url = $1) =~ tr/A-Z/a-z/; $urls{$url}++; }
sleep(3);
}

#*-- put the urls in a table
foreach $url (keys %urls)
{
$count++;
($site = $url) =~ s#/.*$##i; $url =~ s/'/\\'/g; $url =~ s/\$/\\\$/;
$command = "insert into $utab values ('$url', '', '$site', 0.0, 0,

0)";

Rosta Farzan wrote:

Where can I find the list of the functions of pg module, for
example how to insert a row to the database? Does anybody
know a tutorial on perl & Postgres?

man DBI
man DBD::Pg

here's an example on-the-fly, untested, quite likely to burn your
house down and de-neuter your cats:

#!/usr/bin/perl

#use Apache::DBI; # <== if in a mod_perl script
use DBI;

my $DSN = 'niblick';
my $USER= 'frammistat';
my $PSWD= 'plithrod';
# ...or better yet, read them from their own config file.

# for another database engine, change the 'Pg' (and perhaps 'dbname='):
my $dbh = DBI->connect( # DataBase Handle
"dbi:Pg:dbname=$DSN",
$USER,
$PSWD,
);
# dbi:Pg:dbname=$DSN;host=$HOST;port=$PORT ... yada yada

# all the rows at once, and each row in field-order
my $array_of_arrays = $dbh->selectall_arrayref(<<SQL);
SELECT
x.alpha,
x.bravo,
pif.charlie
pif.xray,
pif.yankee,
ww.zulu
FROM
whatever_the_heck ww,
xanadu x,
shazam_goober pif
WHERE
ww.this = pif.that
AND
pix.yada = x.boing
AND
somefn( x.ralph, pix.yoyo ) = someval
SQL
print "record 13 field 7: ",$array_of_arrays->[12][6],"\n";

# updates, inserts and deletes (and creates and drops) all work
# the same way: string together your sql, leaving ? placeholders
# for variable values--
my $sth = $dbh->prepare( # StatemenT Handle
"select * from my_favorite_view where afield = ? or bfield = ?"
);

while (<>) {
chomp;
# naïve de-taint:
next unless /(\w+)/;

# we have two "?" in the prepare above,
# so we have two vals in execute below:
$sth->execute( $1, $1 );

# on each iteration we re-use the $sth->prepare()d sql from
# above, plunking in new values at $sth->execute()
while ( $hashref = $sth->fetchrow_hashref() ) {
print map {"\t",$hashref->{$_}} qw/field list here/;
print "\n";
}

$sth->finish();
}

# and now we're done--
$dbh->disconnect();

__END__

that's the nutshell version. see "man DBI" for more.

--
There are 10 kinds of people:
ones that get binary, and ones that don't.

will@serensoft.com
http://sourceforge.net/projects/newbiedoc -- we need your brain!
http://www.dontUthink.com/ -- your brain needs us!

Looking for a firewall? Do you think smoothwall sucks? You're
probably right... Try the folks at http://clarkconnect.org/ !

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Fri, Jan 31, 2003 at 04:40:53PM -0600, will trillich wrote:

#use Apache::DBI; # <== if in a mod_perl script

Please read the docs for Apache::DBI--they specifically state that
you should not use Apache::DBI in your mod_perl scripts, but that
it should be set up in httpd.conf or in a script run at Apache
start-up.

- --keith

- --
kkeller@speakeasy.net
public key: http://wombat.san-francisco.ca.us/kkeller/kkeller.asc
alt.os.linux.slackware FAQ: http://wombat.san-francisco.ca.us/cgi-bin/fom

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On Fri, Jan 31, 2003 at 11:05:24PM -0800, Keith Keller wrote:

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Fri, Jan 31, 2003 at 04:40:53PM -0600, will trillich wrote:

#use Apache::DBI; # <== if in a mod_perl script

Please read the docs for Apache::DBI--they specifically state that
you should not use Apache::DBI in your mod_perl scripts, but that
it should be set up in httpd.conf or in a script run at Apache
start-up.

quite so.

i was hoping to introduce some new items to base some incessant
research on, including "man Apache::DBI", for the OP. i should
have been more clear on that, of course.

good eye!

--
There are 10 kinds of people:
ones that get binary, and ones that don't.

will@serensoft.com
http://sourceforge.net/projects/newbiedoc -- we need your brain!
http://www.dontUthink.com/ -- your brain needs us!

Looking for a firewall? Do you think smoothwall sucks? You're
probably right... Try the folks at http://clarkconnect.org/ !