To my brothers and sisters in the Monestary, whom I love; may you have peace, and may your code be free of errors.

I seek your wisdom on the matter of MS-SQL access in Perl. I have been using DBI with DBD::ODBC with success; however, ODBC is somewhat slow, and I do not require the portability it offers as my applications will only ever connect to MS-SQL (it is a corporate standard).

I seek a faster way to work with MS-SQL server resources, preferrably still using a DBI interface. Or, perhaps, some wise Monk can point out a resource that will help me optimize DBD::ODBC for MS-SQL Servers, especially over a slow WAN link (think ISDN).

Lest I be lax in providing the details required, I am using:

  1. ActivePerl 5.8.4.810
  2. The latest DBI and DBD::ODBC from ASPN
  3. MS SQL Server 2000 SP3

As an example of my current methodology, I do this: 

use warnings;
use strict;
use Statements; # Internal Module

use DBI; require DBD::ODBC;

my $dbh = DBI->connect('DBI:ODBC:goober')
   or die "Unable to connect to Goober";  #Use NT Auth
$dbh->{PrintError} = 0;
$dbh->{AutoCommit} = 0;
$dbh->{RaiseError} = 1;
# We don't pass these to connect, because SQL Server seems to
# randomly ignore them unless we do as above.

my $sth;
eval { $sth = $dbh->prepare( $QUERY{auth} ) }; if ($@) {
   die "Could not prepare $QUERY{auth}: $DBI::errstr ($@)";
}

while (my $row = $sth->fetchrow_hashref) {
   #do things...
}

[download]

Most of my code requires that I open a connection and then perform several SELECT, INSERT and/or DELETE statements; so, any optimization must have gains for all of those. Update: I do already realize savings by opening only one connection, then using it for all my statements.:Update

I humbly thank the Monestary for its wisdom.

radiantmatrix
require General::Disclaimer;
Perl is

In reply to Improving on MS-SQL over DBI and DBD::ODBC by radiantmatrix

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