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Sams Teach Yourself MySQL in 21 Days, Second Edition
book

Sams Teach Yourself MySQL in 21 Days, Second Edition

by Tony Butcher
December 2002
Beginner content levelBeginner
640 pages
16h 41m
English
Sams
Content preview from Sams Teach Yourself MySQL in 21 Days, Second Edition

Connecting to MySQL with the DBI

With the architecture installed, we will start by writing a Perl program that uses DBI to connect to the MySQL database.

Perl communicates with MySQL using a database handle. The connect() method uses a general format:

$dbh = DBI->connect($data_source, $username, $auth [, %attr]);

So we may use this format:

$dbh = DBI->connect("DBI:mysql:$db_name:hostname:port", $db_user, $db_pass);

or with additional parameters:

$dbh = DBI->connect("DBI:mysql:$db_name:hostname:port", $db_user, $db_pass,
  { RaiseError => 1, PrintError => 0 } );

where $dbh is the database handle returned (if connection is successful), and the parameters are used like this:

  • $db_name holds the name of the database to connect to.

  • hostname is the ...

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Publisher Resources

ISBN: 0672323923Purchase book