Connecting to DBI:mysql:database=radius;host=localhost;port=33.

=head1 NAME 

DBD::mysql - MySQL driver for the Perl5 Database Interface (DBI)

=head1 SYNOPSIS

    use DBI; 

    my $dsn = "DBI:mysql:database=$database;host=$hostname;port=$port";
    my $dbh = DBI->connect($dsn, $user, $password);

    my $sth = $dbh->prepare(
        'SELECT id, first_name, last_name FROM authors WHERE last_name = ?')
        or die "prepare statement failed: $dbh->errstr()";
    $sth->execute('Eggers') or die "execution failed: $dbh->errstr()";
    print $sth->rows . " rows found.\n";
    while (my $ref = $sth->fetchrow_hashref()) {
        print "Found a row: id = $ref->{'id'}, fn = $ref->{'first_name'}\n";
    }    
    $sth->finish;


=head1 EXAMPLE

  #!/usr/bin/perl

  use strict;
  use warnings;
  use DBI; 

  # Connect to the database.
  my $dbh = DBI->connect("DBI:mysql:database=test;host=localhost",
                         "joe", "joe's password",
                         {'RaiseError' => 1}); 

  # Drop table 'foo'. This may fail, if 'foo' doesn't exist
  # Thus we put an eval around it.
  eval { $dbh->do("DROP TABLE foo") };
  print "Dropping foo failed: $@\n" if $@;

=item port

The hostname, if not specified or specified as '' or 'localhost', will
default to a MySQL server running on the local machine using the default for
the UNIX socket. To connect to a MySQL server on the local machine via TCP,
you must specify the loopback IP address (127.0.0.1) as the host.

Should the MySQL server be running on a non-standard port number,
you may explicitly state the port number to connect to in the C<hostname>
argument, by concatenating the I<hostname> and I<port number> together
separated by a colon ( C<:> ) character or by using the  C<port> argument.

To connect to a MySQL server on localhost using TCP/IP, you must specify the
hostname as 127.0.0.1 (with the optional port).

When connecting to a MySQL Server with IPv6, a bracketed IPv6 address should be used.
Example DSN:

  my $dsn = "DBI:mysql:;host=[1a12:2800:6f2:85::f20:8cf];port=3306";

[root@localhost maminjie]# radsqlrelay -1 -d mysql -b radius -h 127.0.0.1 -u root -p 123456 -P 33 -x test.sql
Connecting to DBI:mysql:database=radius;host=127.0.0.1;port=33.Sleeping for 1 secs.
.Sleeping for 1 secs.
.Sleeping for 1 secs.
.Sleeping for 1 secs.
^C[root@localhost maminjie]# radsqlrelay -1 -d mysql -b radius -h localhost -u root -p 123456 -P 33 -x test.sql
Connecting to DBI:mysql:database=radius;host=localhost;port=33.
Waiting for test.sql
Renamed test.sql to test.sql.work

Opening test.sql.work
Getting file lock
Reading: I.>Table 'radius.wu' doesn't exist
Sleeping for 1 secs.

No more lines to read, doing any final inserts: I
Processed 1 lines
Removing and closing test.sql.work

Disconnecting from database