DBI boilerplate code

I keep writing code to talk to databases in perl and I’m forever
forgetting the correct runes for talking to databases, so I thought I’d
stick it here for easy reference.

use DBI;

my $db_driver = "Pg" # Pg or mysql (or others)
my $db_name = "database";
my $db_host = "localhost";
my $db_user = "username";
my $db_pass = "password";

my $dbh = DBI->connect("dbi:$db_driver:dbname=$db_name;host=$db_host",
   $db_user, $db_pass);

It’s probably handy to give an example of a common database read

my $sth = $dbh->prepare( "SELECT * FROM table WHERE id  = ?")
      or die $dbh->errstr;

$sth->execute($id) or die $dbh->errstr;

while (my $hashref = $sth->fetchrow_hashref) {
   print $hashref->{id};

2 thoughts on “DBI boilerplate code

Leave a Reply

Your email address will not be published. Required fields are marked *

Time limit is exhausted. Please reload CAPTCHA.

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

This site uses Akismet to reduce spam. Learn how your comment data is processed.